Author Topic: SpaceX Falcon 9 - SSO-A (Sun Synch Express) - late 2017  (Read 29162 times)

Offline Chris Bergin

From Vandy I assume?

Spaceflight Purchases SpaceX Falcon 9 Rocket to Provide More Frequent, Cost-Effective Rideshare Availability for Small Satellite Industry

Company expands launch services to meet growing demand for routine, predictable access to space, removing cost and access barriers for commercial and governmental organizations

 

SEATTLE (September 30, 2015)— Spaceflight, the company reinventing the model for launching small satellites into space, today announced the purchase of a SpaceX Falcon 9 rocket and the expansion of its launch services to include dedicated rideshare missions. Spaceflight’s first dedicated rideshare mission, named the “2017 Sun Synch Express,” will launch in the second half of 2017 to a sun-synchronous low Earth orbit which is popular for earth imaging satellites.

Dedicated rideshare is a new launch alternative that blends cost-effective rideshare pricing with first-class service typically associated with buying a private rocket. Spaceflight’s dedicated rideshare missions will deliver customer spacecraft to popular destinations, such as sun-synchronous and geosynchronous transfer orbits, and provide a new solution for smaller satellites that cannot afford a complete launch vehicle.

“By purchasing and manifesting the entire SpaceX rocket, Spaceflight is well positioned to meet the smallsat industry’s growing demand for routine, reliable access to space,” said Curt Blake, President of Spaceflight’s launch business. “Our purchase of a private rocket further continues our mission of providing a customer-focused, full-service launch experience.”

Spaceflight’s dedicated rideshare routes are not tied to any particular primary satellite mission, so commercial and non-commercial smallsat operators using the service will benefit from the certainty of set launch schedules that were not previously available to rideshare customers, and can thereby avoid delays resulting from geo-political issues or primary satellite schedule changes. This enables customers with spacecraft that range in mass from 5 to 2500 kg to create long-range mission plans to Sun Synch and GTO with more dependable launch dates. Spaceflight is creating steady access to space with yearly dedicated rideshare missions planned beginning in 2017.

Spaceflight’s 2017 Sun Synch Express mission manifest includes satellites as small as 5 kg 3U CubeSat up to 575 kg satellite. Over 20 satellites will be deployed during the mission, with commercial customers pursuing a range of endeavors and government-sponsored scientific research originating from six different countries. The manifest is nearly at capacity.

“Dedicated missions for Rideshare-class payloads are an excellent way to promote space enterprise and research,” said Gwynne Shotwell, President and COO of SpaceX. “We are pleased that Spaceflight has successfully brought this multi-faceted partnership together.”

Spaceflight has launched 81 satellites to date and has over 135 satellites to deploy through 2018. The frequency of satellite launches, combined with Spaceflight’s cross-section of customers and variety of mission-applications, is a strong indicator of the growing capabilities of small satellites and the need for more timely and cost-effective access to space.

In addition to the new dedicated rideshare service, Spaceflight will continue to manifest small satellites as secondary payloads aboard several launch vehicles around the world to a variety of orbit destinations. Spaceflight is the only rideshare launch provider that publishes launch pricing and schedules online (http://www.spaceflightindustries.com/schedule-pricing/), aiming to make access to space as easy as booking an airline ticket.

About Spaceflight

Spaceflight is a next-generation, integrated space services and solutions company that is fundamentally changing how small satellites are built, launched and operated to improve access to space and enable persistent global awareness. Through its market-leading subsidiaries and service lines, including Spaceflight Systems, Spaceflight Services and Spaceflight Networks, the company provides cost-effective, comprehensive small-satellite products and services from development to launch, communications and operations. Headquartered in Seattle, Washington, Spaceflight provides its services worldwide through its global network of partners, ground stations and launch vehicle providers. For more information, please visit http://www.spaceflightindustries.com.

Offline arachnitect

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Re: SpaceX Falcon 9 - 2017 Sun Synch Express - Q3 2017
« Reply #1 on: 09/30/2015 05:12 PM »
Very interesting.

LMCLS was trying to do this with Athena.

Offline NovaSilisko

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Re: SpaceX Falcon 9 - 2017 Sun Synch Express - Q3 2017
« Reply #2 on: 09/30/2015 05:57 PM »
Presumably by "purchasing and manifesting the entire SpaceX rocket" they mean the whole available payload on a launch, not literally the rocket itself?

Offline Rik ISS-fan

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Re: SpaceX Falcon 9 - 2017 Sun Synch Express - Q3 2017
« Reply #3 on: 09/30/2015 09:40 PM »
Read carefully. The press release stades:
 'a least 20 satellites` Most likely it will be more than 100 satellites.
Spaceflight industries gave a presentation at the Small Payload Rideshare Conference 2015.
I think page 6 and 14-18 contain info about this flight.
https://www.sprsa.org/sites/default/files/conference-presentation/Spaceflight%20Industries%20-%20SPRSA%202015%20-%20Q4%202015%20SHERPA%20Mission.pdf
« Last Edit: 09/30/2015 09:57 PM by Rik ISS-fan »

Online abaddon

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Re: SpaceX Falcon 9 - 2017 Sun Synch Express - Q3 2017
« Reply #4 on: 09/30/2015 09:59 PM »
So "over 20 satellites" at roughly $60 million is something around $3 million average cost per payload plus whatever profit Spaceflight is making here.  Maybe $3.5-4 million for an average cost to the satellite owner, for a very rough estimate of cost?

Offline nadreck

Re: SpaceX Falcon 9 - 2017 Sun Synch Express - Q3 2017
« Reply #5 on: 09/30/2015 10:11 PM »
So "over 20 satellites" at roughly $60 million is something around $3 million average cost per payload plus whatever profit Spaceflight is making here.  Maybe $3.5-4 million for an average cost to the satellite owner, for a very rough estimate of cost?

You can see the price list at http://www.spaceflightindustries.com/schedule-pricing/ note that if you scroll down to the schedule, I presume that this booked flight is the one labeled Q3 2017 launching from Vandenberg to a sun seeking orbit, note that I presume that because all possible satellite sizes are available on it.
It is all well and good to quote those things that made it past your confirmation bias that other people wrote, but this is a discussion board damnit! Let us know what you think! And why!

Offline ChrisWilson68

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Re: SpaceX Falcon 9 - 2017 Sun Synch Express - Q3 2017
« Reply #6 on: 10/01/2015 08:28 AM »
This is exactly why all those start-ups trying to build dedicated launchers for small payloads for $5-$10 million a shot are doomed to fail.

Online docmordrid

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Re: SpaceX Falcon 9 - 2017 Sun Synch Express - Q3 2017
« Reply #7 on: 10/01/2015 11:12 AM »
This is exactly why all those start-ups trying to build dedicated launchers for small payloads for $5-$10 million a shot are doomed to fail.

At one launch/year they aren't going to steal many payloads from outfits who are planning on a shorter timeline. Especially for DoD smallsats which they may want up on demand.
DM

Offline arachnitect

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Re: SpaceX Falcon 9 - 2017 Sun Synch Express - Q3 2017
« Reply #8 on: 10/01/2015 01:21 PM »
This is exactly why all those start-ups trying to build dedicated launchers for small payloads for $5-$10 million a shot are doomed to fail.


They might be encouraged to see smallsat operators paying real money to go to useful orbits.

I'm not sure the dedicated launchers are doomed to fail, but their market is very small at best. Once a large number of smallsats want to go to the same place, they will fly on bigger rockets.
« Last Edit: 10/01/2015 01:22 PM by arachnitect »

Online abaddon

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Re: SpaceX Falcon 9 - 2017 Sun Synch Express - Q3 2017
« Reply #9 on: 10/01/2015 01:34 PM »
At one launch/year they aren't going to steal many payloads from outfits who are planning on a shorter timeline. Especially for DoD smallsats which they may want up on demand.
Twenty satellites a year plus all of the others that are already manifested as secondaries on other launches?  That's a decent amount of capacity there...

Offline mhlas7

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Re: SpaceX Falcon 9 - 2017 Sun Synch Express - Q3 2017
« Reply #10 on: 10/01/2015 03:37 PM »
This is exactly why all those start-ups trying to build dedicated launchers for small payloads for $5-$10 million a shot are doomed to fail.

Price isn't the only consideration. If you need a satellite to go in a specific orbit at a specific time, you don't want other payloads to delay the launch or have to compromise on the destination orbit. The extra cost may be worth it in this situation. Even though Falcon 9 is the cheapest rocket around, it doesn't get all the commercial launches. Proton and Ariane still get customers and even the Atlas V has been getting commercial customers despite its high cost.

Also, lighter weight launchers will still have multiple payloads. Look at Rocket Lab's website (http://book.rocketlabusa.com/). You can book a spot on a shared ride for a CubeSat, and since they will be launching every ~1.5 months, the customers have more flexibility in regards to launch date versus spaceflight industries which may have 1 launch per year.

Online MikeAtkinson

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Re: SpaceX Falcon 9 - 2017 Sun Synch Express - Q3 2017
« Reply #11 on: 10/01/2015 03:55 PM »
At > $28,000 / kg Spaceflight only need to sell ~ 3 tonnes of capacity to break even, this could be very profitable for them.

I can't find any estimates of F9 FT (v1.2) payload to SSO, but I'm guessing it is about 8 tonnes with booster flyback.

It seems that they can undercut the competition:

http://www.virgingalactic.com/satellite-launch/l1-performance/
Quote
"For a price below US $10 million, LauncherOne will now be able to launch 200 kg into the standard Sun-Synchronous Orbit"
Which is $50,000/kg.

RocketLab Electron seems to be $50,000/kg for 100 kg into SSO.

Firefly alpha seems to be about $9M for ~ 100 kg to SSO, or about $90,000 / kg

Offline Zed_Noir

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Re: SpaceX Falcon 9 - 2017 Sun Synch Express - Q3 2017
« Reply #12 on: 10/02/2015 01:03 AM »
We should re-titled this thread to SpaceX FalconBus SSO Xpress - Q3 2017   ;D

P.S. Xpress is not misspelled, remember this is SpaceX.

Offline OnWithTheShow

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Re: SpaceX Falcon 9 - 2017 Sun Synch Express - Q3 2017
« Reply #13 on: 10/02/2015 02:26 AM »
Also F9 is a real rocket that is actually flown compared to some of the others mentioned in this thread.

Offline ChrisWilson68

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Re: SpaceX Falcon 9 - 2017 Sun Synch Express - Q3 2017
« Reply #14 on: 10/02/2015 04:50 AM »
This is exactly why all those start-ups trying to build dedicated launchers for small payloads for $5-$10 million a shot are doomed to fail.

At one launch/year they aren't going to steal many payloads from outfits who are planning on a shorter timeline. Especially for DoD smallsats which they may want up on demand.

It's one dedicated launch per year already.  As the smallsat market grows, the flights become more frequent.

Also, there are opportunities as secondary payloads.  The same company offering the dedicated rideshare flight also offers opportunities as secondaries from multi-satellite secondary dispensers.

And the costs are several times lower.  How many organizations are so insensitive to price that they can pay many times as much just to launch a few months earlier?

Smallsats tend to be done by organizations that are much more constrained in their budgets than those that do larger satellites.  I think the vast majority of the smallsat market will go to ridesharing companies.

Online guckyfan

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Re: SpaceX Falcon 9 - 2017 Sun Synch Express - Q3 2017
« Reply #15 on: 10/02/2015 07:17 AM »
Dedicated launch vehicles let you chose your orbit as well as the launch date. That may be a large advantage. However if one or two bulk launches a year take many of the customers it may undermine the business case of small launch vehicles.

Edit: there is one thing that worries me about many smallsats in sunsynchronous orbit. It is quite high and they will decay very slowly.
« Last Edit: 10/02/2015 07:22 AM by guckyfan »

Offline nadreck

Re: SpaceX Falcon 9 - 2017 Sun Synch Express - Q3 2017
« Reply #16 on: 10/02/2015 02:07 PM »
there is one thing that worries me about many smallsats in sunsynchronous orbit. It is quite high and they will decay very slowly.

The solution here as I see it would be satellite corrals for birds that can't control themselves or have a high likelyhood of failure and as an alternative a commitment to use manoeuvring fuel to deorbit by a set date. The enforcement of the 'corral' would be with a device launched with them that can tether or net inactive sats that stray outside the corral. It would have guidance and electric propulsion. Eventually the whole corral has failed and is all tethered to the sheep dog satellite and can be deoribited together, or even if not, they are at least one monolithic piece and not 100's. The enforcement of the 'commitment' to deorbit should be a license fee and review of the likelihood of successful deorbit. If the bird fails before it deorbits the fee should have been high enough to pay for trash collection of the bird multiplied by the odds of it failing.
It is all well and good to quote those things that made it past your confirmation bias that other people wrote, but this is a discussion board damnit! Let us know what you think! And why!

Offline douglas100

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Re: SpaceX Falcon 9 - 2017 Sun Synch Express - Q3 2017
« Reply #17 on: 10/02/2015 03:52 PM »
I don't think that corral is a very good analogy. There is no place like a corral in sunsynchronous orbit. Everything is in a state of flux. Either a satellite can maneuver or it can't. If it can't then it will inevitably drift in altitude and orbital plane from those which it was launched with. You could imagine launch providers refusing to launch non maneuverable satellites, but I think this is unlikely in the near future.

If your satellite can maneuver then it is only necessary that it operate in such a way that it causes no danger to others, no matter where it physically is. If it cannot, then your electrically propelled sheepdog could be part of a future solution. However policing such a service could be a major regulatory headache. For example, a US sheepdog couldn't sweep up a foreign-owned vehicle without the owner's permission.

Even the Cosmos Iridium collision didn't bring about the development of orbital clean up technology. It looks like things are going to continue as they are for some time yet.
Douglas Clark

Offline nadreck

Re: SpaceX Falcon 9 - 2017 Sun Synch Express - Q3 2017
« Reply #18 on: 10/02/2015 06:02 PM »


If your satellite can maneuver then it is only necessary that it operate in such a way that it causes no danger to others, no matter where it physically is. If it cannot, then your electrically propelled sheepdog could be part of a future solution. However policing such a service could be a major regulatory headache. For example, a US sheepdog couldn't sweep up a foreign-owned vehicle without the owner's permission.


I see the sheepdog as going up with the launcher, and being agreed to by the client (and of course being paid for by the client as part of their launch cost). Basically adding the guidance system, capturing system, SEP, Solar panels and comms to the deployment device (SHERPA in this case)
« Last Edit: 10/02/2015 06:02 PM by nadreck »
It is all well and good to quote those things that made it past your confirmation bias that other people wrote, but this is a discussion board damnit! Let us know what you think! And why!

Online Comga

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Re: SpaceX Falcon 9 - 2017 Sun Synch Express - Q3 2017
« Reply #19 on: 10/02/2015 07:45 PM »
there is one thing that worries me about many smallsats in sunsynchronous orbit. It is quite high and they will decay very slowly.

The solution here as I see it would be satellite corrals for birds that can't control themselves or have a high likelyhood of failure and as an alternative a commitment to use manoeuvring fuel to deorbit by a set date. The enforcement of the 'corral' would be with a device launched with them that can tether or net inactive sats that stray outside the corral. It would have guidance and electric propulsion. Eventually the whole corral has failed and is all tethered to the sheep dog satellite and can be deoribited together, or even if not, they are at least one monolithic piece and not 100's. The enforcement of the 'commitment' to deorbit should be a license fee and review of the likelihood of successful deorbit. If the bird fails before it deorbits the fee should have been high enough to pay for trash collection of the bird multiplied by the odds of it failing.

"Space is big.  Really big.  You won't believe how mind boggling big it is.  I mean, you may think it's a long way down the street to the Chemist, but....."

You may think the two dimensional surface of the Earth is big but increase that from two to six dimensions and it gets really big.

There is no such thing as a "corral" for satellites and no practice al way to do" trash collection".  Even if dispensed together they will disperse in all those dimensions. 

There are NSF threads and conferences discussing that. It is not clear that this is on-topic for this thread about this particular launch. 
What kind of wastrels would dump a perfectly good booster in the ocean after just one use?

Offline nadreck

Re: SpaceX Falcon 9 - 2017 Sun Synch Express - Q3 2017
« Reply #20 on: 10/02/2015 08:19 PM »


"Space is big.  Really big.  You won't believe how mind boggling big it is.  I mean, you may think it's a long way down the street to the Chemist, but....."

You may think the two dimensional surface of the Earth is big but increase that from two to six dimensions and it gets really big.

While I like the source of your quote, one of my favourite SF philosophers and one of my favourite humanists, it is non sequitor to this discussion. Where satellites go after they disperse is irrelevant if you prevent them from dispersing.


There is no such thing as a "corral" for satellites and no practice al way to do" trash collection".  Even if dispensed together they will disperse in all those dimensions. 

I am afraid I may not have been succinct, the use of the word corral was not suggesting a paddock like arrangement, but simply of establishing a parametric boundary beyond which a satellite within the virtual 'corral' would not be permitted to stray. Of course those with no control will disperse, however since the sheep dog satellite does have control, it simply snags each one as it drifts out of control, and, once it has snagged all of them then they are all considered retired and then re-entered.  People who make nano and micro sats that don't want them to have positive control, probably did not intend them to last very long.

There are NSF threads and conferences discussing that. It is not clear that this is on-topic for this thread about this particular launch.
Well the person I was responding to who thought that this sort of dedicated launch of potentially 100's of nano sats obviously thought that the threat was real.
It is all well and good to quote those things that made it past your confirmation bias that other people wrote, but this is a discussion board damnit! Let us know what you think! And why!

Offline douglas100

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Re: SpaceX Falcon 9 - 2017 Sun Synch Express - Q3 2017
« Reply #21 on: 10/02/2015 08:52 PM »

I am afraid I may not have been succinct, the use of the word corral was not suggesting a paddock like arrangement, but simply of establishing a parametric boundary beyond which a satellite within the virtual 'corral' would not be permitted to stray. Of course those with no control will disperse, however since the sheep dog satellite does have control, it simply snags each one as it drifts out of control, and, once it has snagged all of them then they are all considered retired and then re-entered.  People who make nano and micro sats that don't want them to have positive control, probably did not intend them to last very long.

You could avoid the complexity of the sheepdog by having a maneuverable dispenser for the satellites, a kind of super Sherpa. Uncontrolled short lifetime satellites would be deployed in low orbits (say ISS height or lower) and would de-orbit naturally. They could be left to get on with their missions. Larger more sophisticated controlled vehicles would be deployed in higher orbits to allow them to complete their missions, provided they had onboard means to de-orbit. This would also give the customers some choice of orbit, something they don't get with current ride share launches.

I'm one of those who doesn't think overcrowding in LEO will be affected too much by Sun Synch Express-type missions for a while yet.
Douglas Clark

Online guckyfan

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Re: SpaceX Falcon 9 - 2017 Sun Synch Express - Q3 2017
« Reply #22 on: 10/02/2015 08:52 PM »
Well the person I was responding to who thought that this sort of dedicated launch of potentially 100's of nano sats obviously thought that the threat was real.

And I think the remark was relevant to this thread. Nadrecks response and suggestion would also be related to this mass launch. Extended general discussion of that topic is probably not.

Offline nadreck

Re: SpaceX Falcon 9 - 2017 Sun Synch Express - Q3 2017
« Reply #23 on: 10/03/2015 03:21 AM »
This is exactly why all those start-ups trying to build dedicated launchers for small payloads for $5-$10 million a shot are doomed to fail.

maybe, maybe not :P

Still the question I asked and had pulled.  Why this launch in 2017 was costing $100 million dollars?

That comes to $65 million launch costs & aprox $35 million processing. 

Where is the professed drop in price for reusable to $15 Million listed in many threads?

The costs are not going down as advertised :o

yes they are, as I read the news coverage it is $65 million that Spaceflight Industries is paying SpaceX, and, so far with only 3t over 20 spacecraft currently manifest, $100M that they are charging for the launch.
It is all well and good to quote those things that made it past your confirmation bias that other people wrote, but this is a discussion board damnit! Let us know what you think! And why!

Online A_M_Swallow

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Re: SpaceX Falcon 9 - 2017 Sun Synch Express - Q3 2017
« Reply #24 on: 10/03/2015 06:18 AM »
Are satellites on the Sun Synch Express allowed to carry propellant and thrusters?
Some primary payload customers restrict them.

Offline ChrisWilson68

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Re: SpaceX Falcon 9 - 2017 Sun Synch Express - Q3 2017
« Reply #25 on: 10/03/2015 10:16 AM »
Are satellites on the Sun Synch Express allowed to carry propellant and thrusters?
Some primary payload customers restrict them.

The Spaceflight Industries Payload User's Guide says this about satellites with propulsion (end of page 8/start of page 9):

Quote
the acceptance of the payload is subject to approval by the Launch Services Provider and Spaceflight

It also says (page 27, section 4.1 General CubeSat Requirements):

Quote
Satellite shall be in compliance with AFSPCMAN 91‐710
    o Propulsion systems, if accepted, shall be designed, integrated and tested in accordance with Volume 3.  Additionally, activation of propulsion shall have 3 inhibits.
    o Hazardous material shall be in compliance with Volume 3

So, yes, you can have thrusters, but you have to be careful with them.

http://www.spaceflightindustries.com/wp-content/uploads/2015/05/SPUG-RevF.pdf
« Last Edit: 10/03/2015 10:17 AM by ChrisWilson68 »

Offline Carl G

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Re: SpaceX Falcon 9 - 2017 Sun Synch Express - Q3 2017
« Reply #26 on: 10/03/2015 03:32 PM »
Thread trimmed of stupidity (uncivil posts).
« Last Edit: 10/05/2015 01:53 PM by Carl G »

Offline nadreck

Re: SpaceX Falcon 9 - 2017 Sun Synch Express - Q3 2017
« Reply #27 on: 10/06/2015 10:26 PM »
New article in Satellite Today

Quote
The mission’s manifest includes satellites ranging from a 5kg 3U CubeSat up to a 575kg satellite.

Quote
We intend to offer annual missions to a low earth, sun synchronous orbit beginning in 2017 and to Geosynchronous Transfer Orbit (GTO) beginning in 2018

Quote
Blake said Spaceflight looks forward to using a previously flown Falcon 9 rocket in the future.
It is all well and good to quote those things that made it past your confirmation bias that other people wrote, but this is a discussion board damnit! Let us know what you think! And why!

Offline Chris Bergin

Re: SpaceX Falcon 9 - 2017 Sun Synch Express - Q3 2017
« Reply #28 on: 10/07/2015 12:21 PM »
XPRIZE Presser:

 Israeli Google Lunar XPRIZE Team Is First to Sign Launch Agreement For Private Mission to the Moon On SpaceX Falcon 9

SpaceIL Becomes First Google Lunar XPRIZE Team to Produce a Verified Launch Contract for a 2017 Mission, Using a SpaceX Falcon 9 Launcher via Spaceflight Industries

 

JERUSALEM, Israel (October 7, 2015)  - At a press conference held in Jerusalem today, alongside Israeli President Reuven Rivlin, and Bob Weiss, vice chairman and president of XPRIZE, SpaceIL announced a significant milestone in its race to the moon: securing a “ticket to the moon” on a SpaceX Falcon 9 launcher, with a mission scheduled for the second half of 2017. With this, SpaceIL becomes the first team to produce a verified launch contract in the US$30 million Google Lunar XPRIZE competition, and aims to accomplish not only the first Israeli mission to the moon, but also the world’s first private lunar mission.

 

“We are proud to officially confirm receipt and verification of SpaceIL’s launch contract, positioning them as the first and only Google Lunar XPRIZE team to demonstrate this important achievement, thus far,” said Bob Weiss, vice chairman and president of XPRIZE. “The magnitude of this achievement cannot be overstated, representing an unprecedented and monumental commitment for a privately-funded organization, and kicks off an exciting phase of the competition in which the other 15 teams now have until the end of 2016 to produce their own verified launch contracts. It gives all of us at XPRIZE and Google the great pride to say, ‘the new space race is on!’”

 

To win the Google Lunar XPRIZE, a privately funded team must successfully place an unmanned spacecraft on the moon’s surface that explores at least 500 meters and transmits high-definition video and images back to Earth, before the mission deadline of December 31, 2017.

 

"Only three countries have ‘soft-landed’ a rover on the surface of the moon: the United States, the former Soviet Union, and China. Now the notion of the small state of Israel being added to this exclusive list look more promising than ever,” said SpaceIL CEO Eran Privman. “ Last year we made significant strides toward landing on the moon, both in terms of project financing and in terms of the engineering design and now, we are thrilled to finally secure our launch agreement.  This takes us one huge step closer to realize our vision of recreating an ‘Apollo effect’ in Israel: to inspire a new generation to pursue Science, Engineering, Technology, and Math (STEM).”

 

Signing the launch agreement was made possible due to the completion of an additional fundraising round led by the two major contributors of SpaceIL:  Dr. Miriam and Sheldon G. Adelson Family Foundation and Morris Kahn’s Kahn Foundation.

 

SpaceIL has purchased launch services from Spaceflight Industries; an American space company who recently purchased a SpaceX Falcon 9 launcher and will manifest SpaceIL’s spacecraft as a co-lead spot, which will sit in a designated capsule inside the launcher, among a cluster of secondary payloads. Once the capsule separates from the launcher, it will automatically release the spacecraft, which will use advanced navigation sensors to guide it to the lunar surface, with engineers in a mission control room standing by to remotely send commands and corrections as needed.

 

“We’re excited to work closely with the SpaceIL team to help them realize their mission of getting to the moon”, said Curt Blake, president of Spaceflight’s launch business. “It’s very gratifying to play an integral part in SpaceIL’s quest to win the Google Lunar XPRIZE."

 

Also today, SpaceIL unveiled a new and improved design of its spacecraft, completed by SpaceIL engineers with consultation from world-renowned Israeli industrial designer, Alex Padwa, regarding the spacecraft’s exterior.  The first physical components of the new model are already starting to arrive at the SpaceIL integration lab.

 

Online abaddon

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Re: SpaceX Falcon 9 - 2017 Sun Synch Express - Q3 2017
« Reply #29 on: 10/07/2015 02:45 PM »
So, if we assume a typical 600-800km sun-synchronous target orbit (per Wiki) for the F9 upper stage, how hard is it to get from such an orbit to the Moon, and land?  Assuming the 575kg payload is the SpaceIL spacecraft, presumably most of that is going to be fuel for the TLI burn, orbital insertion, and landing?  Seems like very thin margins, which I guess is to be expected.

Congratulations to SpaceIL on being the first Google XPrice competitor to sign a launch contract!
« Last Edit: 10/07/2015 02:47 PM by abaddon »

Offline nadreck

Re: SpaceX Falcon 9 - 2017 Sun Synch Express - Q3 2017
« Reply #30 on: 10/07/2015 03:27 PM »
So, if we assume a typical 600-800km sun-synchronous target orbit (per Wiki) for the F9 upper stage, how hard is it to get from such an orbit to the Moon, and land?  Assuming the 575kg payload is the SpaceIL spacecraft, presumably most of that is going to be fuel for the TLI burn, orbital insertion, and landing?  Seems like very thin margins, which I guess is to be expected.

Congratulations to SpaceIL on being the first Google XPrice competitor to sign a launch contract!

According to the Spaceflight Industries schedule it is a 500-600km SSO.

More importantly the delta-V required may be significantly lower, however since only one of the many news articles covering this news story mentioned it, we may need to take this with a grain of salt until there is more confirmation:

The Verge article on the SpaceIL announcement

Quote
The team's lander, temporarily named "Sparrow," will sit in a designated capsule on the Falcon 9 rocket, among other secondary payloads. The rocket will deploy all other spacecraft aboard first, once it reaches lower Earth orbit — and Sparrow will be the last one off in the cosmic carpool. Once Sparrow is alone, the Falcon 9 will reignite the engine in its upper stage, carrying the lander a significant way toward the Moon. The lander will then detach from the rocket and propel itself the rest of the way to the lunar surface.

Of course this begs the question: "how much fuel will be left on the Falcon US?" and my guess is that depends on how many more payloads that Spaceflight Industries sells.
It is all well and good to quote those things that made it past your confirmation bias that other people wrote, but this is a discussion board damnit! Let us know what you think! And why!

Online Comga

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Re: SpaceX Falcon 9 - 2017 Sun Synch Express - Q3 2017
« Reply #31 on: 10/07/2015 03:38 PM »
According to the Spaceflight Industries schedule it is a 500-600km SSO.

More importantly the delta-V required may be significantly lower, however since only one of the many news articles covering this news story mentioned it, we may need to take this with a grain of salt until there is more confirmation:

The Verge article on the SpaceIL announcement

Quote
The team's lander, temporarily named "Sparrow," will sit in a designated capsule on the Falcon 9 rocket, among other secondary payloads. The rocket will deploy all other spacecraft aboard first, once it reaches lower Earth orbit — and Sparrow will be the last one off in the cosmic carpool. Once Sparrow is alone, the Falcon 9 will reignite the engine in its upper stage, carrying the lander a significant way toward the Moon. The lander will then detach from the rocket and propel itself the rest of the way to the lunar surface.

Of course this begs the question: "how much fuel will be left on the Falcon US?" and my guess is that depends on how many more payloads that Spaceflight Industries sells.

Does this mean three burns for the second stage, initial launch to 500-600 km, circularization in SSO, and pseudo-TLI or even four burns?
Has any Falcon second stage done three burns?   (Inject, circularization, disposal?)

Surely someone on this forum can calculate the burn-to-depletion orbit given estimates of the combined mass of the satellites, "Sparrow", and the dispensing hardware, with either three or four burns.
What kind of wastrels would dump a perfectly good booster in the ocean after just one use?

Offline nadreck

Re: SpaceX Falcon 9 - 2017 Sun Synch Express - Q3 2017
« Reply #32 on: 10/07/2015 03:43 PM »



Surely someone on this forum can calculate the burn-to-depletion orbit given estimates of the combined mass of the satellites, "Sparrow", and the dispensing hardware, with either three or four burns.

With or without first stage recovery - plus is it RTLS or barge? As well, what will the weight of all the satellites launched be? Spaceflight industries is continuing to sell space on that flight.
It is all well and good to quote those things that made it past your confirmation bias that other people wrote, but this is a discussion board damnit! Let us know what you think! And why!

Online Comga

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Re: SpaceX Falcon 9 - 2017 Sun Synch Express - Q3 2017
« Reply #33 on: 10/07/2015 03:50 PM »
Surely someone on this forum can calculate the burn-to-depletion orbit given estimates of the combined mass of the satellites, "Sparrow", and the dispensing hardware, with either three or four burns.

With or without first stage recovery - plus is it RTLS or barge? As well, what will the weight of all the satellites launched be? Spaceflight industries is continuing to sell space on that flight.

Those doing the simulation would know better, but I would guess first stage recovery on the west coast ASDS.
You have a good point that the apogee decreases with each additional spacecraft.  There could be some agreement with SpaceIL as an anchor customer for a minimum altitude.
Are you volunteering?  ;)
What kind of wastrels would dump a perfectly good booster in the ocean after just one use?

Offline nadreck

Re: SpaceX Falcon 9 - 2017 Sun Synch Express - Q3 2017
« Reply #34 on: 10/07/2015 03:53 PM »


Are you volunteering?  ;)

Idle curiosity will have me throw numbers around at some point, presuming I have input numbers I am comfortable with. I promise you that if I do I will post the answers along the assumptions I make to get them.
It is all well and good to quote those things that made it past your confirmation bias that other people wrote, but this is a discussion board damnit! Let us know what you think! And why!

Offline ChrisWilson68

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Re: SpaceX Falcon 9 - 2017 Sun Synch Express - Q3 2017
« Reply #35 on: 10/07/2015 06:33 PM »
More importantly the delta-V required may be significantly lower, however since only one of the many news articles covering this news story mentioned it, we may need to take this with a grain of salt until there is more confirmation:

The Verge article on the SpaceIL announcement

Quote
The team's lander, temporarily named "Sparrow," will sit in a designated capsule on the Falcon 9 rocket, among other secondary payloads. The rocket will deploy all other spacecraft aboard first, once it reaches lower Earth orbit — and Sparrow will be the last one off in the cosmic carpool. Once Sparrow is alone, the Falcon 9 will reignite the engine in its upper stage, carrying the lander a significant way toward the Moon. The lander will then detach from the rocket and propel itself the rest of the way to the lunar surface.

Of course this begs the question: "how much fuel will be left on the Falcon US?" and my guess is that depends on how many more payloads that Spaceflight Industries sells.

Cool!

Spaceflight Industries may be more limited by the slots in their dispenser than by mass.  If so, they could fill up all their slots and still leave the Falcon 9 upper stage with a lot of performance.

Anyway, SpaceX probably reserves some performance margin in case some things don't go to plan.  If that's the case, and SpaceIL is willing to take some risk (it's surely not their biggest risk!) they can count on using most of that margin.

Online abaddon

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Re: SpaceX Falcon 9 - 2017 Sun Synch Express - Q3 2017
« Reply #36 on: 10/07/2015 06:58 PM »
Has any Falcon second stage done three burns?   (Inject, circularization, disposal?)
Didn't one of the early GTO launches do a final burn to depletion, presumably to validate their residuals estimations?  I seem to recall that happening...
« Last Edit: 10/07/2015 06:59 PM by abaddon »

Offline zt

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Re: SpaceX Falcon 9 - 2017 Sun Synch Express - Q3 2017
« Reply #37 on: 10/07/2015 07:11 PM »
With the limited throttle range of the Merlin 1D-Vac, if the upper stage burns to depletion to perform TLI, with sparrow as the only payload, what will the acceleration be like?
« Last Edit: 10/07/2015 07:11 PM by zt »

Offline ChrisWilson68

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Re: SpaceX Falcon 9 - 2017 Sun Synch Express - Q3 2017
« Reply #38 on: 10/07/2015 07:16 PM »
With the limited throttle range of the Merlin 1D-Vac, if the upper stage burns to depletion to perform TLI, with sparrow as the only payload, what will the acceleration be like?

I believe the dispenser will also still be there, which is probably some not-insignificant mass.

Still, you have a point -- SpaceIL will definitely need to make sure Sparrow can handle high g loads!

Offline nadreck

Re: SpaceX Falcon 9 - 2017 Sun Synch Express - Q3 2017
« Reply #39 on: 10/07/2015 08:07 PM »
With the limited throttle range of the Merlin 1D-Vac, if the upper stage burns to depletion to perform TLI, with sparrow as the only payload, what will the acceleration be like?

I believe the dispenser will also still be there, which is probably some not-insignificant mass.

Still, you have a point -- SpaceIL will definitely need to make sure Sparrow can handle high g loads!

Presuming 934kN full thrust and 70% being minimum then  13.58g if it is just the Sparrow, no idea what the dispenser might weigh if it is still there. But if we add even 1t we get a maximum acceleration of 11.27g at 70% of full thrust.

NOTE that the if we can presume that the Sparrow (as the largest paying payload on this flight) is oriented in the attitude it is going to land with, it does need to tolerated the maximum landing force which while only transient is still going to impose a higher acceleration tolerance along that one axis that a normal microgravity craft does not otherwise need.
It is all well and good to quote those things that made it past your confirmation bias that other people wrote, but this is a discussion board damnit! Let us know what you think! And why!

Offline deruch

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Re: SpaceX Falcon 9 - 2017 Sun Synch Express - Q3 2017
« Reply #40 on: 01/22/2016 04:33 AM »
Does this mean three burns for the second stage, initial launch to 500-600 km, circularization in SSO, and pseudo-TLI or even four burns?
Has any Falcon second stage done three burns?   (Inject, circularization, disposal?)

Not sure about previous launches but Jason-3 just had 3 upper stage burns.  Sort of flew under the radar because it came around the time that NASA got confirmation of the solar panel deployment from tracking in Alaska.
In theory, there is no difference between theory and practice.  But, in practice, there is.  --Jan van de Snepscheut

Online Comga

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Re: SpaceX Falcon 9 - 2017 Sun Synch Express - Q3 2017
« Reply #41 on: 01/22/2016 06:38 AM »
Does this mean three burns for the second stage, initial launch to 500-600 km, circularization in SSO, and pseudo-TLI or even four burns?
Has any Falcon second stage done three burns?   (Inject, circularization, disposal?)

Not sure about previous launches but Jason-3 just had 3 upper stage burns.  Sort of flew under the radar because it came around the time that NASA got confirmation of the solar panel deployment from tracking in Alaska.

Unless you were paying attention and following along on NSF.  ;)   We certainly read about it here.

edit:  OG2 demonstrated direct injection (single second stage burn) into a high inclination orbit around 600 km altitude.  The flight in question for my post, taking the secondary payload from SSO to or near to TLI, could be done with two burns.  However a three burn launch would be more efficient, resulting in a higher transfer apogee with a lower required delta V for the lunar mission, and now three burns have been demonstrated.
« Last Edit: 01/22/2016 06:44 AM by Comga »
What kind of wastrels would dump a perfectly good booster in the ocean after just one use?

Offline hrissan

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Re: SpaceX Falcon 9 - 2017 Sun Synch Express - Q3 2017
« Reply #42 on: 01/22/2016 09:28 AM »
Does this mean three burns for the second stage, initial launch to 500-600 km, circularization in SSO, and pseudo-TLI or even four burns?
Has any Falcon second stage done three burns?   (Inject, circularization, disposal?)

Not sure about previous launches but Jason-3 just had 3 upper stage burns.  Sort of flew under the radar because it came around the time that NASA got confirmation of the solar panel deployment from tracking in Alaska.

Unless you were paying attention and following along on NSF.  ;)   We certainly read about it here.

edit:  OG2 demonstrated direct injection (single second stage burn) into a high inclination orbit around 600 km altitude.  The flight in question for my post, taking the secondary payload from SSO to or near to TLI, could be done with two burns.  However a three burn launch would be more efficient, resulting in a higher transfer apogee with a lower required delta V for the lunar mission, and now three burns have been demonstrated.
Might there be enough propellant in F9 upper stage to crash into moon for science and fun?

Offline gongora

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Re: SpaceX Falcon 9 - 2017 Sun Synch Express - Q3 2017
« Reply #43 on: 06/02/2016 04:03 AM »
This seems to be one of the payloads for the flight, EU:CROPIS, a small greenhouse growing tomatoes under simulated Lunar and then Martian gravity.

May 24, 2016 Project description at DLR
Feb 5, 2016 The Space Show episode on EU:CROPIS
Jul 8, 2014 Satnews article on the launch booking


Offline kevin-rf

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Re: SpaceX Falcon 9 - 2017 Sun Synch Express - Q3 2017
« Reply #44 on: 06/02/2016 02:14 PM »
This seems to be one of the payloads for the flight, EU:CROPIS, a small greenhouse growing tomatoes under simulated Lunar and then Martian gravity.

May 24, 2016 Project description at DLR
Feb 5, 2016 The Space Show episode on EU:CROPIS
Jul 8, 2014 Satnews article on the launch booking



That may well be the first bio experiment under simulated mars and lunar gravity. Wonder if they will also be growing under earth g as a control. This is very exciting. I assume they are going to spin the payload.
I just saw some idiot at the gym put a water bottle in the pringles holder on the treadmill.

Online guckyfan

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Re: SpaceX Falcon 9 - 2017 Sun Synch Express - Q3 2017
« Reply #45 on: 06/02/2016 02:21 PM »
I assume they are going to spin the payload.

Yes. At different times with different spin rates to simulate Mars and Moon gravity.

A video I had already posted in the Mars agriculture thread.



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Re: SpaceX Falcon 9 - 2017 Sun Synch Express - Q3 2017
« Reply #46 on: 06/03/2016 09:10 AM »
Quote
DLR: Flight-model construction, yr late, now begun on Eu:CROPIS greenhouse sat; launch late 2017 on SpaceX Falcon 9.

https://twitter.com/pbdes/status/738646013427212289

Offline gongora

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Re: SpaceX Falcon 9 - 2017 Sun Synch Express - Q4 2017
« Reply #47 on: 08/08/2016 02:03 PM »
Tweet from Peter B. de Selding
Quote
Spaceflight: 90-sat Sherpa tug on Q4 SpaceX launch is sold out. Space available for Q4 2017 on dedicated Falcon 9.

Sun Synch Express now Q4 2017.

Offline gongora

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Re: SpaceX Falcon 9 - 2017 Sun Synch Express - Q3 2017
« Reply #48 on: 08/12/2016 07:07 PM »
This sounds like it might be on the Sun Synch Express...

SpaceNews: House panel irked by Air Force request for ORS-6 launch funds
Quote
...
In a letter dated July 1 to Congressional defense committees, Deborah Lee James, the secretary of the Air Force, said the Compact Ocean Wind Vector Radiometer, would launch in September 2017 as part of a rideshare mission. The launch is part of a previously undisclosed contract with Spaceflight Industries, which arranges rideshare launches.
...
« Last Edit: 08/12/2016 07:08 PM by gongora »

Offline wxmeddler

Re: SpaceX Falcon 9 - 2017 Sun Synch Express - Q3 2017
« Reply #49 on: 08/14/2016 03:32 AM »
This sounds like it might be on the Sun Synch Express...

SpaceNews:

This would be correct.

Offline Chris Bergin

Re: SpaceX Falcon 9 - 2017 Sun Synch Express - Q3 2017
« Reply #50 on: 10/11/2016 04:25 PM »


Terra Bella and Spaceflight Industries Sign Agreement for Falcon 9 Launch for Small Imaging Satellites

 

Spaceflight’s 2017 SSO-A dedicated rideshare mission at near capacity with spacecraft from 10 countries 

SEATTLE, Oct. 11, 2016 - Spaceflight Industries, a next-generation space company enabling access to space and redefining global intelligence, announced today that Terra Bella has signed an agreement with its launch services entity, Spaceflight, for a SpaceX Falcon 9 launch of Terra Bella SkySats.

 

Terra Bella will be the co-lead on Spaceflight’s SSO-A dedicated rideshare mission scheduled to launch from Vandenberg Air Force Base in California in late 2017.

 

The SSO-A mission will transport both government and commercial microsats and cubesats, and is currently at 90 percent capacity with more than 20 payloads from 10 countries manifested aboard the rocket. Confirmed spacecraft include:

·         Korea Advanced Institute of Science and Technology’s (KAIST) NEXTSat-1 satellite, conducting scientific missions such as star formation and space storm measurements and also technology demonstration in space

·         Iceye’s innovative SAR (synthetic aperture radar) micro-satellite for all condition imaging

·         HawkEye 360’s first three formation-flying satellites to detect, characterize, and geolocate various RF signals worldwide

 

“We’re seeing a tide shift in the industry’s expectation for routine, reliable and affordable access to space,” said Curt Blake, president of Spaceflight. “The willingness of prominent commercial organizations to join forces for the advancement of global initiatives is very encouraging to the smallsat community, and to society as a whole.”

 

Aligning customers’ needs with available capacity and schedule, Spaceflight provides integrated launch services, including mission management, support hardware, payload integration and orbital deployment. Spaceflight has negotiated the launch of nearly 120 satellites with contracts to deploy more than 150 through 2018. The company is planning its largest launch – 89 spacecraft – to be deployed by its Sherpa tug from a Falcon 9 in 2017.

 

About Spaceflight

Spaceflight is revolutionizing the business of spaceflight by delivering a new model for accessing space. A comprehensive launch services and mission management provider, the company provides a straightforward and cost-effective suite of products and services including state-of-the-art satellite infrastructure, rideshare launch offerings, and global communications networks that enable commercial and government entities to achieve their mission goals, on time and on budget. A service offering of Spaceflight Industries in Seattle, Washington, Spaceflight provides its services through a global network of partners, ground stations and launch vehicle providers. For more information, visit www.spaceflight.com.

Offline Chris Bergin

Re: SpaceX Falcon 9 - 2017 Sun Synch Express - Q3 2017
« Reply #51 on: 10/11/2016 04:27 PM »
Spaceflight also pass on to us that:

Spaceflight’s SSO-A launch, the company’s first-ever dedicated rideshare mission, is scheduled to take off from Vandenberg Air Force Base in California in late 2017 aboard a SpaceX Falcon 9.

 
The mission is at 90 percent capacity and will carry both government and commercial microsats and cubesats. Other confirmed payloads include:

·         Korea Advanced Institute of Science and Technology’s (KAIST) NEXTSat-1 satellite

·         Iceye’s innovative SAR (synthetic aperture radar) micro-satellite

·         HawkEye 360’s first three formation-flying satellites

Offline Skyrocket

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Re: SpaceX Falcon 9 - 2017 Sun Synch Express - Q3 2017
« Reply #52 on: 10/11/2016 04:44 PM »
Any info, how many SkySats? There are two from the first batch left and six more from the second batch. So this launch can carry up to 8 satellites.

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Re: SpaceX Falcon 9 - 2017 Sun Synch Express - Q3 2017
« Reply #53 on: 10/12/2016 01:03 AM »
SpaceNews: Spaceflight to launch Terra Bella satellites on Falcon 9 mission
Quote
In an Oct. 11 interview, Curt Blake, president of Spaceflight, said he couldn’t provide the number of Terra Bella satellites that will fly on the mission, at the request of the company, other than “it’s more than one.”
Quote
While the announcement said that Terra Bella will be a “co-lead” on the SSO-A mission, Blake said that the company will be the only customer with that designation on the mission, giving it more control over the launch schedule.
Quote
SpaceIL, an Israeli group competing in the Google Lunar X Prize competition, had previously been named a primary payload for the flight, but Blake said their lunar lander will fly on another, unnamed launch.

Offline Rik ISS-fan

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Re: SpaceX Falcon 9 - 2017 Sun Synch Express - late 2017
« Reply #54 on: 11/27/2016 11:32 AM »
Odd we all missed this blog post from spaceflight industries.
http://www.spaceflight.com/model-preparation-sso/

They reseved a plywood mock-up of a new version of the CubeStack from LoadPath/Moog. My impression is that this rideshare adapter ring can accomodate six 6U cubesat deployers. That's 1.5x the capacity of the old cubestack design. It looks lighter weight then the old design, nice improvement.

For fun I estimated the weight of a loaded 6x 6U CubeStack.
I assume a loaded 6U dispenser weight is 15kg (2x3U; 5kg + 5kg / 6U 10kg + 5kg).
Six of these 6U dispensers make 90kg (6x15 | 200lb).
I assume the CubeStack has a 38.8" diameter and a height of about 10".
On top a small EELV payload of ~5000lb /~2mT can be placed.
So I guess the total weight of the 6x 6U Cubestack is 120-180kg (275-400lb).
My impression of the old cubestack is that it weight over 180kg (400lb).

I'm wondering if they also have plans for a 4x and 6x 12U CubeStack. 
4x 12U (30kg) is 120kg payload + deployers. Total weight 180-250kg (400-550lb)
6x 12U is 180 kg. Total weight 250-300kg (550-660lb).

Offline gongora

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Re: SpaceX Falcon 9 - 2017 Sun Synch Express - late 2017
« Reply #55 on: 11/27/2016 11:07 PM »
Odd we all missed this blog post from spaceflight industries.
http://www.spaceflight.com/model-preparation-sso/

They reseved a plywood MDF mock-up of a new version of the CubeStack from LoadPath/Moog. My impression is that this rideshare adapter ring can accomodate six 6U cubesat deployers. That's 1.5x the capacity of the old cubestack design. It looks lighter weight then the old design, nice improvement.

...
I assume the CubeStack has a 38.8" diameter and a height of about 10".
...

I'm not so sure that's the diameter, it looks bigger to me.  The original CubeStack was sized for smaller launch vehicles.  This one might be EELV adapter sized?


Offline Rik ISS-fan

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Re: SpaceX Falcon 9 - SSO-A (Sun Synch Express) - late 2017
« Reply #56 on: 11/29/2016 06:16 PM »
Gongora, thanks for correcting me. It's indeed made out of MDF. And the ring is most likely 62" (1.5748m) instead of 38.8" (0.98552m).

Offline russianhalo117

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Re: SpaceX Falcon 9 - SSO-A (Sun Synch Express) - late 2017
« Reply #57 on: 11/29/2016 08:33 PM »
Odd we all missed this blog post from spaceflight industries.
http://www.spaceflight.com/model-preparation-sso/

They reseved a plywood MDF mock-up of a new version of the CubeStack from LoadPath/Moog. My impression is that this rideshare adapter ring can accomodate six 6U cubesat deployers. That's 1.5x the capacity of the old cubestack design. It looks lighter weight then the old design, nice improvement.

...
I assume the CubeStack has a 38.8" diameter and a height of about 10".
...

I'm not so sure that's the diameter, it looks bigger to me.  The original CubeStack was sized for smaller launch vehicles.  This one might be EELV adapter sized?


SHERPA adapters are designed for EELV launchers only.

Re: SpaceX Falcon 9 - 2017 Sun Synch Express - Q3 2017
« Reply #58 on: 02/03/2017 07:30 AM »
Quote
DLR: Flight-model construction, yr late, now begun on Eu:CROPIS greenhouse sat; launch late 2017 on SpaceX Falcon 9.

https://twitter.com/pbdes/status/738646013427212289


http://www.space.com/35533-space-greenhouses-moon-mars-greenhouse.html

Offline gongora

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Re: SpaceX Falcon 9 - SSO-A (Sun Synch Express) - late 2017
« Reply #59 on: 03/03/2017 02:46 AM »
Spaceflight Industries [Feb. 28, 2017]
Quote
We are well underway in preparations for our Dedicated Rideshare launch on a Falcon 9 (SSO-A). Right now, our first milestones have been met and everything is running according to schedule. Our engineers are completing dry runs on our integration activities, using our detailed mockups. We’ve done our first actuations of the system and have successfully operated the separation system with our avionics.

The ESPA ring has arrived, and we will have a full engineering model to conduct tests. Other large structures will arrive to a new build facility this summer. We’ll keep you posted as we move into final assembly!

Offline gongora

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Re: SpaceX Falcon 9 - SSO-A (Sun Synch Express) - late 2017
« Reply #60 on: 04/04/2017 01:04 PM »
Spaceflight Industries: Spacecraft Recontact Simulations [March 21, 2017]
Quote
As we get closer to our SSO-A dedicated rideshare mission aboard a SpaceX Falcon 9, our preparations have moved into high gear. We’ve got an amazing team getting ready to deploy close to 90 satellites in the same orbit. To ensure a flawless mission, we’ve brought in experts from outside who are excited to be part of the mission.

As part of our preparations, Dr. Vivek Nagabhushan, Spaceflight’s Group Lead of Spacecraft Dynamics and Control, reached out to Dr. Behcet Acikmese, professor of Aerospace and Aeronautical Engineering at the University of Washington. ... He is a well- known expert at guidance, control and estimation algorithms for spacecraft. His task was to develop an analysis tool to assess different deployment strategies with Dr. Nagabhushan’s guidance. ...

Offline gongora

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Re: SpaceX Falcon 9 - SSO-A (Sun Synch Express) - late 2017
« Reply #61 on: 04/08/2017 08:40 PM »
Terra Bella FCC Filing
Quote
In total, seven SkySat satellites are currently operating. Terra Bella anticipates launching SkySat8 through SkySat15—the remaining currently authorized spacecraft in the constellation—in 2017.
SkySat16 through SkySat21, for which this modification is requested, are currently under construction. Terra Bella anticipates launching these satellites as early as September 2018.
« Last Edit: 04/08/2017 08:41 PM by gongora »