Author Topic: LIVE: JAXA CubeSat deployment from JEM  (Read 63547 times)

Offline Fuji

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LIVE: JAXA CubeSat deployment from JEM
« on: 03/02/2011 03:11 pm »
JAXA anounced Cubesat deploy plan from JEM utilize the JEM airlock and JEMRMS.
Call for max 4U equivalent  Cubesats (1U+3 or 3U+1U etc.) .
Deployment schedule will be sep. 2012. Launched HTV or other resupply ships.

Cubesat dispenser is attached to airlock slide table and grappled by JEMRMS.
« Last Edit: 10/04/2012 03:55 pm by Space Pete »

Offline Danderman

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Re: JAXA's Cubesat deploy plan from JEM
« Reply #1 on: 03/02/2011 10:03 pm »
Is there a web page where that was announced?

Offline Space Pete

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Re: JAXA's Cubesat deploy plan from JEM
« Reply #2 on: 03/02/2011 10:11 pm »
That sounds very cool! I like that idea! :)

Offline Danderman

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Re: JAXA's Cubesat deploy plan from JEM
« Reply #3 on: 03/02/2011 10:22 pm »
Hmmm ... it looks like if aliens attack ISS, there will be some sort of defensive system the crew could use, they could spit CubeSATS at them.


Offline Fuji

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Re: JAXA's Cubesat deploy plan from JEM
« Reply #4 on: 03/03/2011 11:32 am »
Is there a web page where that was announced?


Yes. But these Space Activity Commission report are not translated in english.
http://www.jaxa.jp/press/2011/03/20110302_sac_smallsat.pdf

Offline thuvt

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Re: JAXA's Cubesat deploy plan from JEM
« Reply #5 on: 03/03/2011 02:49 pm »
A very good news for cubesat developers!
Learn something new everyday

Online Ronsmytheiii

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Re: JAXA's Cubesat deploy plan from JEM
« Reply #6 on: 03/03/2011 02:59 pm »
I have to wonder, why?  Wouldn't it be simpler to just deploy the satellites off the lv on launch then bring them all the way to station then send them out the airlock.
« Last Edit: 03/03/2011 03:00 pm by Ronsmytheiii »

Offline Silmfeanor

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Re: JAXA's Cubesat deploy plan from JEM
« Reply #7 on: 03/03/2011 07:22 pm »
I have to wonder, why?  Wouldn't it be simpler to just deploy the satellites off the lv on launch then bring them all the way to station then send them out the airlock.

I imagine they can be `worked on` ie turned on in zero gravity - that way you can build them optimized for zero G. Also, if this approach proves to be safe, it would be a lot more reliable than various diffirent launchers, diffirent orbits, etc.

Also, if you can do this fast enough you could turn it on ( by an astronaut ) , check out if it works, then throw it out. That way you won't lose your cubesat.

There are more scheduled launches going up towards the space station, so you won't have to worry about cancellations of other launches and the like. The launchers ( being human rated or close to it) would be safer, perhaps?

These are just guesses of course, but I can imagine that you could calculate the worth of 1 kg of experiment mass on perhaps the ATV and see that for 10kg you could get a part of a big of one big experiment rack or 10 different cubesats, all of which could carry different payloads?

( perhaps even one with a nice camera to throw out and do a nice photoshoot  ;D )

Offline Cherokee43v6

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Re: JAXA's Cubesat deploy plan from JEM
« Reply #8 on: 03/03/2011 07:33 pm »
Too bad they don't have a few on board right now to toss out to get the 'flyaround' pictures that the Soyuz was considered for.
"I didn't open the can of worms...
        ...I just pointed at it and laughed a little too loudly."

Offline Danderman

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Re: JAXA's Cubesat deploy plan from JEM
« Reply #9 on: 03/03/2011 10:38 pm »
I have to wonder, why?  Wouldn't it be simpler to just deploy the satellites off the lv on launch then bring them all the way to station then send them out the airlock.

The cost to engineer a mid-flight deployer from Ariane V, Soyuz or HTV is probably greater than simply slinging them off ISS, as counter-intuitive as that may be. And any LV deployer is a single point solution, whereas carrying a CubeSAT in a CTB can be done for any ISS vehicle.

Offline Space Pete

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Re: JAXA's Cubesat deploy plan from JEM
« Reply #10 on: 03/04/2011 03:37 pm »
I have to wonder, why?  Wouldn't it be simpler to just deploy the satellites off the lv on launch then bring them all the way to station then send them out the airlock.

It seems this is the main benefit:

"The small-sized earth orbiters will be packed with cushion materials and delivered to the ISS by an unmanned transfer vehicle, reducing the risk of them being damaged by vibrations, compared to launch by a rocket."

Source: http://mdn.mainichi.jp/mdnnews/news/20110304p2a00m0na002000c.html
« Last Edit: 03/04/2011 03:37 pm by Space Pete »

Online robertross

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Re: JAXA's Cubesat deploy plan from JEM
« Reply #11 on: 03/05/2011 11:01 pm »
This is a really cool idea!

Offline douglas100

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Re: JAXA's Cubesat deploy plan from JEM
« Reply #12 on: 03/06/2011 12:58 pm »
Yes, it is neat, isn't it? I like the way the JEM arm is used to control the deployment direction so there is little chance that the cubesats will recontact the Station. Also, by 2012 the Station will be in a higher orbit giving the cubesats a longer life.
Douglas Clark

Offline Fuji

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Re: JAXA's Cubesat deploy plan from JEM
« Reply #13 on: 06/16/2011 02:21 am »
JAXA announced following three cubesat was selected.
 RAIKO (Wakayama University: size 2U)
 FITSAT-1 (Fukuoka Institute of Technology: size 1U)
 WE WISH (Meisei Electric Co., Ltd.: size 1U)

Offline Space Pete

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Re: JAXA's Cubesat deploy plan from JEM
« Reply #14 on: 06/22/2011 06:51 pm »
Selection Results for Small Satellites to Be Deployed from Kibo

June 15, 2011 (JST)
Japan Aerospace Exploration Agency (JAXA)

The Japan Aerospace Exploration Agency (JAXA) plans the demonstration of small satellites deployment from the Japanese Experiment Module "Kibo" of the International Space Station (ISS) in order to enhance the capability of Kibo's utilization and to offer more launch oppotunities to small satellites.
We selected the following small satellites as the first participants in this demonstration mission, which is expected to be launched to ISS in around Sep. 2012, and to be the first small satellites deployed from the ISS using the robotic arm.

Satellite name: RAIKO
Proposer: Wakayama University
Size: 2U
Missions:
1. Shooting images of the Earth through a fish-eye lens camera
2. Measuring relative movement when deployed from the ISS through
    photo shooting
3. Experiment of a star sensor
4. Orbit descending experiment using membrane deployment
5. Development of a small movable ground station and receiving signals
    via international cooperation
6. Orbit determination experiment by Doppler frequency measurement of
    Ku-band beacon radio wave
7. High speed data communication experiment by Ku-band communication equipment

Satellite name: FITSAT-1
Proposer: Fukuoka Institute of Technology
Size: 1U
Missions:
1. Demonstration of a high-speed transmission module for a small satellite
2. Visible light communication experiment by high power LED

Satellite name: WE WISH
Proposer: Meisei Electric Co., Ltd.
Size: 1U
Missions:
1. To contribute to local technology education and to promote utilization of
    data acquired by a small satellite
2. Demonstration of an ultra-small thermal infrared camera


http://www.jaxa.jp/press/2011/06/20110615_smallsat_e.html

Offline Fuji

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Re: JAXA's Cubesat deploy plan from JEM
« Reply #15 on: 01/25/2012 10:31 pm »
Media invited to watch the J-SSOD (JEM-Small Satellite Orbital Deployer).
This J-SSOD will be launched in the HTV3.

http://news.mynavi.jp/articles/2012/01/25/j-ssod/index.html (Japanese)

Will be deployed 3 japanese cubesat and 2 US cubesat (F-1 and TechEdSat).
« Last Edit: 01/26/2012 02:01 am by Fuji »

Offline Space Pete

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Re: JAXA's Cubesat deploy plan from JEM
« Reply #16 on: 01/25/2012 10:34 pm »
Very cool, thanks Fuji! :)

« Last Edit: 01/25/2012 10:40 pm by Space Pete »

Offline Comga

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Re: JAXA's Cubesat deploy plan from JEM
« Reply #17 on: 01/25/2012 11:18 pm »
By ejecting the picosats downward, (minus R-bar) the new orbits will have higer apogees, and cross the orbit of the ISS.

Fortunately, by ejecting the picosats with a relative velocity component in the anti-velocity direction, the orbit periods will be reduced, meaning they should descend through the altitude of the ISS farther forward (displaced in the velocity direction) on each subsequent pass.

My guess is that this will be done just before a station reboost. so that the ISS orbit will be above that of the picosats.  Hopefully their oribts will decay faster than that of the ISS.

I wonder if this will affect any of the other traffic, like HTV, ATV, Progress, Soyuz, and the CRS flights.   
What kind of wastrels would dump a perfectly good booster in the ocean after just one use?

Offline Danderman

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Re: JAXA's Cubesat deploy plan from JEM
« Reply #18 on: 01/26/2012 03:25 pm »
As an FYI, the F-1 Cubesat is the one that was supposed to be launched by Interorbital Services in 2011; instead it is flying on HTV, courtesy of Nanoracks LLC.
« Last Edit: 01/26/2012 03:28 pm by Danderman »

Offline Robotbeat

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Re: JAXA's Cubesat deploy plan from JEM
« Reply #19 on: 01/26/2012 08:07 pm »
By ejecting the picosats downward, (minus R-bar) the new orbits will have higer apogees, and cross the orbit of the ISS.
...
Yeah, one of the more counter-intuitive aspects of orbital mechanics... For small delta-v in the medium-term, it doesn't matter too much if you push something down or up... it will oscillate slowly up and down, crossing your orbit (until it starts to decay).
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Offline NASA_Aaron

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Re: JAXA's Cubesat deploy plan from JEM
« Reply #20 on: 02/01/2012 11:12 pm »
Awesome, I happened to google our project name and this thread came up! Thanks for finding (what I believe is) the first news article featuring TechEdSat!

I'm the Spacecraft Manager for TechEdSat, if you guys have any questions I'm subscribing to this thread.

Offline Space Pete

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Re: JAXA's Cubesat deploy plan from JEM
« Reply #21 on: 02/02/2012 08:12 am »
Awesome, I happened to google our project name and this thread came up! Thanks for finding (what I believe is) the first news article featuring TechEdSat!

I'm the Spacecraft Manager for TechEdSat, if you guys have any questions I'm subscribing to this thread.

Excellent, welcome to the site's forum. :)

I have some questions, if you have time:

1) What are the benefits of deploying cubesats from ISS, as opposed to hitching a ride on an LV?

2) Does deploying cubesats from ISS present any orbital debris/conjunction concerns to ISS? If so, how will they be mitigated?

Thanks!

Online Ronsmytheiii

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Re: JAXA's Cubesat deploy plan from JEM
« Reply #22 on: 02/02/2012 11:29 am »
Awesome, I happened to google our project name and this thread came up! Thanks for finding (what I believe is) the first news article featuring TechEdSat!

I'm the Spacecraft Manager for TechEdSat, if you guys have any questions I'm subscribing to this thread.

Excellent, welcome to the site's forum. :)

I have some questions, if you have time:

1) What are the benefits of deploying cubesats from ISS, as opposed to hitching a ride on an LV?

2) Does deploying cubesats from ISS present any orbital debris/conjunction concerns to ISS? If so, how will they be mitigated?

Thanks!

And to add on to this, why not deploy the cubesats from a departing VV ala the recent Progress M-13M(45)? 

Great work by the way

Offline tul

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Re: JAXA's Cubesat deploy plan from JEM
« Reply #23 on: 02/02/2012 12:50 pm »

1) What are the benefits of deploying cubesats from ISS, as opposed to hitching a ride on an LV?

Thanks!

JAXA wants to offer free launch opportunities for student's satellite projects on a regular way. The problem is, for FY 2012 there were no available launch vehicles beside the launch of the HTV. IGS is off-limit. (GCOM-W1 got delayed into FY 2012, but that one is already booked out). So the benefit is simply having a launch opportunity as opposed to have no launch opportunity.

Offline Danderman

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Re: JAXA's Cubesat deploy plan from JEM
« Reply #24 on: 02/02/2012 03:40 pm »
Awesome, I happened to google our project name and this thread came up! Thanks for finding (what I believe is) the first news article featuring TechEdSat!

I'm the Spacecraft Manager for TechEdSat, if you guys have any questions I'm subscribing to this thread.

Excellent, welcome to the site's forum. :)

I have some questions, if you have time:

1) What are the benefits of deploying cubesats from ISS, as opposed to hitching a ride on an LV?

2) Does deploying cubesats from ISS present any orbital debris/conjunction concerns to ISS? If so, how will they be mitigated?

Thanks!

And to add on to this, why not deploy the cubesats from a departing VV ala the recent Progress M-13M(45)? 

Great work by the way

Just a reminder that Progress M-13 raised its apogee by 100 km to facilitate deployment of Chibis. If VVs do not do so, orbital lifetime of deployed satellites will be very short.

Offline NASA_Aaron

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Re: JAXA's Cubesat deploy plan from JEM
« Reply #25 on: 02/03/2012 03:12 am »
Awesome, I happened to google our project name and this thread came up! Thanks for finding (what I believe is) the first news article featuring TechEdSat!

I'm the Spacecraft Manager for TechEdSat, if you guys have any questions I'm subscribing to this thread.

Excellent, welcome to the site's forum. :)

I have some questions, if you have time:

1) What are the benefits of deploying cubesats from ISS, as opposed to hitching a ride on an LV?

2) Does deploying cubesats from ISS present any orbital debris/conjunction concerns to ISS? If so, how will they be mitigated?

Thanks!

1) Our cubesat is being soft stowed in the pressurized storage of the HTV-3 vehicle.  This means significantly smoother ride to space.  The downside to this is that we have to go through the extremely strict Payload Safety Review Process for the ISS, which is harder than the interface control requirements for a regular launch vehicle. 

2) JSC and JAXA are performing conjunction analysis, and they have confirmed that there will be no recontact, we're responsible for our own orbital debris analysis.  Basically we have to ensure that we will remain in one piece (nothing ejected) throughout the duration of the flight, and that our ballistic coefficient is suitable to decay faster than the ISS.

Offline Fuji

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Re: JAXA's Cubesat deploy plan from JEM
« Reply #26 on: 02/03/2012 07:00 am »
Awesome, I happened to google our project name and this thread came up! Thanks for finding (what I believe is) the first news article featuring TechEdSat!

I'm the Spacecraft Manager for TechEdSat, if you guys have any questions I'm subscribing to this thread.

Great! I have a question regarding the communication experiment with Irridium or OrbComm.
I think this is the first time using inter-orbit communications such a small satellite.
Could you explain more detail?

Offline Space Pete

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Re: JAXA's Cubesat deploy plan from JEM
« Reply #27 on: 02/03/2012 03:41 pm »
Thanks for the answers Aaron. Good luck with TechEdSat! :)

Offline NASA_Aaron

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Re: JAXA's Cubesat deploy plan from JEM
« Reply #28 on: 03/20/2012 07:36 pm »
Awesome, I happened to google our project name and this thread came up! Thanks for finding (what I believe is) the first news article featuring TechEdSat!

I'm the Spacecraft Manager for TechEdSat, if you guys have any questions I'm subscribing to this thread.

Great! I have a question regarding the communication experiment with Irridium or OrbComm.
I think this is the first time using inter-orbit communications such a small satellite.
Could you explain more detail?

We're using the short burst data (SBD) modes of the two modems to transmit text message sized emails back to the ground, eliminating the requirement of a traditional satellite ground station.

Offline thuvt

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Re: JAXA's Cubesat deploy plan from JEM
« Reply #29 on: 06/20/2012 03:50 am »
Hello everyone,
I'm Thu, the Project Manager for F-1 CubeSat. This is our first space mission so we are a little bit nervous but very excited. If there's any questions about our little bird I'll be happy to answer :)
Learn something new everyday

Offline Danderman

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Re: JAXA's Cubesat deploy plan from JEM
« Reply #30 on: 06/20/2012 05:31 am »

Offline Space Pete

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Re: JAXA's Cubesat deploy plan from JEM
« Reply #31 on: 06/20/2012 08:57 pm »
Hello everyone,
I'm Thu, the Project Manager for F-1 CubeSat. This is our first space mission so we are a little bit nervous but very excited. If there's any questions about our little bird I'll be happy to answer :)

Good luck with your project Thu! :)

Offline thuvt

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Re: JAXA's Cubesat deploy plan from JEM
« Reply #32 on: 06/21/2012 02:50 am »
Good luck with your project Thu! :)
Thank you! The launch date is one month from now, and our little bird has just arrived at Tsukuba Space Center, waiting to be loaded in the J-SSOD together with other companion CubeSats. I hope that everything will go well as planned :)
Learn something new everyday

Offline Fuji

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Re: JAXA's Cubesat deploy plan from JEM
« Reply #33 on: 06/21/2012 10:44 pm »
For reference. You can see the deploment order.

Offline thuvt

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Re: JAXA's Cubesat deploy plan from JEM
« Reply #34 on: 06/22/2012 02:12 am »
Thank you Fuji for posting this. I've been told about the deployment order but it's always good to see the diagram.
Learn something new everyday

Offline Silmfeanor

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Re: JAXA's Cubesat deploy plan from JEM
« Reply #35 on: 06/22/2012 09:22 am »
General question about this project - How long do you stay in orbit with a CubeSat launched like this from the ISS?
I know this depends on a number of factors, including solar wind, etc etc - but is there a minimum/maximum expected timeframe?
Weeks, months, years ( possible propulsion on board of the cubesats? )?

Any answers are greatly appreciated - and good luck to the people involved!
« Last Edit: 06/22/2012 09:23 am by Silmfeanor »

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Re: JAXA's Cubesat deploy plan from JEM
« Reply #36 on: 06/22/2012 09:26 am »
Here's a rough estimation on orbital lifetime of a CubeSat without propulsion system deployed from the ISS:
- At 400km altitude: 250 days
- At 350km altitude: 100 days
« Last Edit: 06/22/2012 09:27 am by thuvt »
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Offline Skyrocket

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Re: JAXA's Cubesat deploy plan from JEM
« Reply #37 on: 06/22/2012 10:41 am »
I simply do not understand, what the merits of this is.

Cubesats are usually deployed fro PPod dispensers (or similar), which can be strapped to nearly every launch vehicle upperstage without mich modification.

Why does JAXA carry these dispensers to the ISS, where a large mounting and handling structure is needed and where the manpower of the astronauts is needed, to deploy the cubesats. There are also no merits in having the cubesats on the station, as these are not serviceable in space (and Cubesats are cheap, so there is no point in servicing these in space).

It seems to me a rather big waste of resources, which could be utilized  much better.

Offline Space Pete

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Re: JAXA's Cubesat deploy plan from JEM
« Reply #38 on: 06/22/2012 03:17 pm »
I simply do not understand, what the merits of this is.

Number one, launching CubeSats inside cargo vehicles, where they can be padded with foam etc, has a much lower vibration environment than mounting straight to a second stage. This means the CubeSats can be designed to cope with less stresses (and thus be cheaper), and also have more chance of making it to orbit alive.

Second, when mounting to a second stage, you are at the mercy of the launch date of the primary payload (primaries will not wait for secondaries) - so if you have development delays with your CubeSat and get bumped from your flight, it could be years before another rocket is available to your selected altitude and inclination. With ISS however, if your CubeSat is bumped from one flight, another one to the same orbit will soon follow due to the constant stream of ISS resupply flights.
« Last Edit: 06/22/2012 03:18 pm by Space Pete »

Offline Skyrocket

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Re: JAXA's Cubesat deploy plan from JEM
« Reply #39 on: 06/22/2012 03:31 pm »
I simply do not understand, what the merits of this is.

Number one, launching CubeSats inside cargo vehicles, where they can be padded with foam etc, has a much lower vibration environment than mounting straight to a second stage. This means the CubeSats can be designed to cope with less stresses (and thus be cheaper), and also have more chance of making it to orbit alive.

Cubesats are generally cheap and are also pretty robust.

Second, when mounting to a second stage, you are at the mercy of the launch date of the primary payload (primaries will not wait for secondaries) - so if you have development delays with your CubeSat and get bumped from your flight, it could be years before another rocket is available to your selected altitude and inclination. With ISS however, if your CubeSat is bumped from one flight, another one to the same orbit will soon follow due to the constant stream of ISS resupply flights.

Competely wrong - there are few flights available to ISS, as the material delivered in the pressurized cargo vehicles to ISS is a limited resource (both in mass and volume). Every cubesat flown is flown at the expence of material, which can be used and is needed on ISS.

On the other side, there are now plenty of flight opportunities on upper stages, where real spare performance can be used without cutting the real payload.

Offline Space Pete

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Re: JAXA's Cubesat deploy plan from JEM
« Reply #40 on: 06/22/2012 06:24 pm »
Cubesats are generally cheap and are also pretty robust.

That may be - but cheap can still be cheaper by being less robust.

FYI, I've seen the lower vibration benefits cited by the project manager of a CubeSat being deployed from the JEM, so I'm not just making it up.

Quote
Competely wrong - there are few flights available to ISS, as the material delivered in the pressurized cargo vehicles to ISS is a limited resource (both in mass and volume). Every cubesat flown is flown at the expence of material, which can be used and is needed on ISS.

On the other side, there are now plenty of flight opportunities on upper stages, where real spare performance can be used without cutting the real payload.

So, let's say you have designed an Earth sensing cubesat that needs to go to 300km at 28 degrees, then get bumped from your ride. It may be a while until another rocket to that altitude and inclination comes round again.

However, by designing a cubesat for 400km at 51.6 degrees (ISS orbit), it won't be long to wait for another flight to that destination if you get bumped off a flight - meaning either less of a delay in event of development taking longer, or eliminating the need for a possible re-design for a different orbit (due to thermal considerations, orbital lifetime, etc).

With regard payload space on ISS flights - CubeSats would be considered science payloads - which have 50% of the space on all ISS flights. Although a CubeSat may take up space that could be used by something else, since science payloads are actually the purpose of the ISS, then the CubeSats would obviously take precedent - else you could say that all science payloads are preventing other science payloads or resupply cargo.

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Re: JAXA's Cubesat deploy plan from JEM
« Reply #41 on: 06/22/2012 09:11 pm »
Wouldn't this allow for cubesats that carry experiments that are hard to protect from vibrations when assembled, but trivial if separated? Thus, would have astronauts doing some "final assembly"?

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Re: JAXA's Cubesat deploy plan from JEM
« Reply #42 on: 06/22/2012 09:19 pm »
Wouldn't this allow for cubesats that carry experiments that are hard to protect from vibrations when assembled, but trivial if separated? Thus, would have astronauts doing some "final assembly"?

I don't know if you want to open up CubeSATs inside the ISS.

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Re: JAXA's Cubesat deploy plan from JEM
« Reply #43 on: 06/22/2012 11:57 pm »
I can tell you more background information.
- This deployment mechanism can handle more big satellite (other than CubeSat) in the future.
- Deployment operation is basically ground based (minimum crew resources).
- We have other piggy-back payload (Message in a Bottle #2), it isn't deployed and retrieved airlock.

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Re: JAXA's Cubesat deploy plan from JEM
« Reply #44 on: 06/25/2012 11:51 pm »
Media event at Tsukuba Space Center.
Photos by Koumei Shibata

http://www.sacj.org/openbbs/

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Re: JAXA's Cubesat deploy plan from JEM
« Reply #45 on: 06/30/2012 01:25 pm »
Here is JAXA's weekly news SPACE@NAVI-Kibo No 166, from 3:12 there are some footage of 5 CubeSats during the media event at Tsukuba Space Center on June 25. Perhaps this is the last time we can see them before they are loaded in the satellite deployer J-SSOD and placed on HTV-3.


Learn something new everyday

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Re: JAXA's Cubesat deploy plan from JEM
« Reply #46 on: 07/20/2012 06:35 am »
So per the question I foolishly asked on the HTV-3 thread instead of here:
The two J-SSOD deployers go up in CTBs on HTV-3. Then they are mounted on the MPEP plate. Is the MPEP also carried up on HTV-3? Or is it already on ISS?
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Re: JAXA's Cubesat deploy plan from JEM
« Reply #47 on: 07/20/2012 02:27 pm »
So per the question I foolishly asked on the HTV-3 thread instead of here:
The two J-SSOD deployers go up in CTBs on HTV-3. Then they are mounted on the MPEP plate. Is the MPEP also carried up on HTV-3? Or is it already on ISS?

The MPEP is also going up on HTV-3 - you can see it in the two attachments below. The two J-SSODs (the PPOD-like devices) are mounted to the MPEP, which includes a FRGF so that it can be grappled by the JEM RMS. The MPEP will mount directly to the JEM A/L slide table.
« Last Edit: 07/20/2012 02:27 pm by Space Pete »

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Re: JAXA's Cubesat deploy plan from JEM
« Reply #48 on: 07/20/2012 02:33 pm »
It's pretty clear that this is a test for a larger later deployment from the JEM airlock, using something like the  MPEP. Does the MPEP represent the largest object than pass through the airlock?

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Re: JAXA's Cubesat deploy plan from JEM
« Reply #49 on: 07/20/2012 03:35 pm »
I imagine many folks have already seen this paper - it gives a nice introduction to the concept.

Introduction of the Small Satellite Deployment Opportunity from JEM
3rd Nano-Satellite Symposium 12-14 Dec 2012 6pp

JEM Small Satellite Orbital Deployer (J-SSOD) is the small satellite launcher, which is capable of deploying CubeSats, 30-50cm class satellite, into the space from the ISS. This concept introduces new utilization of the JEM.

http://www.nanosat.jp/images/3rd/pdf/%5BNSS-03-0107%5D_Introduction_of_the_Small_Satellite.pdf

[copy also attached]
« Last Edit: 07/20/2012 07:30 pm by AnalogMan »

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Re: JAXA's Cubesat deploy plan from JEM
« Reply #50 on: 07/20/2012 11:06 pm »
So per the question I foolishly asked on the HTV-3 thread instead of here:
The two J-SSOD deployers go up in CTBs on HTV-3. Then they are mounted on the MPEP plate. Is the MPEP also carried up on HTV-3? Or is it already on ISS?

The MPEP is also going up on HTV-3 - you can see it in the two attachments below. The two J-SSODs (the PPOD-like devices) are mounted to the MPEP, which includes a FRGF so that it can be grappled by the JEM RMS. The MPEP will mount directly to the JEM A/L slide table.


Yeah, I saw this image, but wasn't sure if this was the flight MPEP or a ground test article (since the MPEP isn't mentioned as a stowage item
in the HTV). The J-SSODs are attached to the MPEP by the crew after unloading of HTV.

Edit:  Seems like the MPEP is too big for one of the HRR racks or CTBs  but it must
be in the pressurized module somewhere.
« Last Edit: 07/20/2012 11:10 pm by jcm »
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Re: JAXA's Cubesat deploy plan from JEM
« Reply #51 on: 07/20/2012 11:10 pm »
Yeah, I saw this image, but wasn't sure if this was the flight MPEP or a ground test article (since the MPEP isn't mentioned as a stowage item
in the HTV). The J-SSODs are attached to the MPEP by the crew after unloading of HTV.

I'm assuming it's a flight article, since the MPEP definitely isn't on ISS already, and the first CubeSat deployment is scheduled for November, so if the MPEP isn't aboard HTV-3, the only other way to get it up there in time would be via SpaceX CRS-1 - and I imagine the Japanese would prefer to fly their hardware on their vehicle.

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Re: JAXA's Cubesat deploy plan from JEM
« Reply #52 on: 07/21/2012 01:27 am »
Yeah, I saw this image, but wasn't sure if this was the flight MPEP or a ground test article (since the MPEP isn't mentioned as a stowage item
in the HTV). The J-SSODs are attached to the MPEP by the crew after unloading of HTV.

I'm assuming it's a flight article, since the MPEP definitely isn't on ISS already, and the first CubeSat deployment is scheduled for November, so if the MPEP isn't aboard HTV-3, the only other way to get it up there in time would be via SpaceX CRS-1 - and I imagine the Japanese would prefer to fly their hardware on their vehicle.

Makes sense. It was the 'definitely isn't on ISS already' I wasn't sure about - I was imagining it could have been standard JEM equipment that just wasn't interesting enough to get called out in previous documents.
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Re: JAXA's Cubesat deploy plan from JEM
« Reply #53 on: 07/23/2012 11:49 pm »
Space Pete is right.
MPEP is launched on HTV3 and that picture is flight article.

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Re: JAXA's Cubesat deploy plan from JEM
« Reply #54 on: 07/24/2012 02:47 am »
Space Pete is right.
MPEP is launched on HTV3 and that picture is flight article.

Thanks!
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Re: JAXA's Cubesat deploy plan from JEM
« Reply #55 on: 07/25/2012 12:51 pm »
FITSAT-1 (NIWAKA) HP (english)
http://www.fit.ac.jp/~tanaka/fitsat.shtml

« Last Edit: 07/25/2012 12:53 pm by yoichi »

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Re: JAXA's Cubesat deploy plan from JEM
« Reply #56 on: 10/04/2012 02:39 pm »
1st cubesat deploy. Very fast.

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Re: JAXA's Cubesat deploy plan from JEM
« Reply #57 on: 10/04/2012 02:40 pm »
a couple of pics for you Fuji san

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Re: JAXA's Cubesat deploy plan from JEM
« Reply #58 on: 10/04/2012 02:44 pm »
these next few pics are of something I caught in the upper right corner

14:32 UTC aprox

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Re: JAXA's Cubesat deploy plan from JEM
« Reply #59 on: 10/04/2012 02:59 pm »




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Re: JAXA's Cubesat deploy plan from JEM
« Reply #60 on: 10/04/2012 03:35 pm »
a couple of pics for you Fuji san


Thanks,  It's Great !

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Re: JAXA's Cubesat deploy plan from JEM
« Reply #61 on: 10/04/2012 03:47 pm »
the 2nd one launched from the ground control
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Re: JAXA's Cubesat deploy plan from JEM
« Reply #62 on: 10/04/2012 03:50 pm »
This time I got it.  :D

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Re: JAXA's Cubesat deploy plan from JEM
« Reply #63 on: 10/04/2012 03:51 pm »
Great views! Congrats JAXA! :)

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Re: LIVE: JAXA CubeSat deployment from JEM
« Reply #64 on: 10/04/2012 03:55 pm »
I've moved this thread to the ISS section and changed the title, to make sure it gets maximum views.

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Re: LIVE: JAXA CubeSat deployment from JEM
« Reply #65 on: 10/04/2012 04:44 pm »
Video of the first deploy in today's ISS update (see from 1:40 to 3:26).


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Re: LIVE: JAXA CubeSat deployment from JEM
« Reply #66 on: 10/04/2012 09:05 pm »
Expedition 33 - Cubesat Release 1 - October 4


Expedition 33 - Cubesat Release 2 - October 4

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Re: LIVE: JAXA CubeSat deployment from JEM
« Reply #67 on: 10/04/2012 09:10 pm »
RELEASE : 12-351
 
NASA'S Techedsat Launches From International Space Station

 
WASHINGTON -- NASA engineers, student interns and amateur radio enthusiasts around the world are listening for signals from a small, cube-shaped satellite launched into orbit from the International Space Station Thursday.

The satellite, dubbed "TechEdSat," was released at 11:44 a.m. EDT from the new Japanese Small Satellite Orbital Deployer aboard the space station.

TechEdSat measures about 4 inches (10 centimeters) on a side and carries a ham radio transmitter. It was developed by a group of student interns from San Jose State University (SJSU) in California with mentoring and support from staff at NASA's Ames Research Center in Moffett Field, Calif. TechEdSat arrived at the space station aboard the Japanese H-II Transfer Vehicle July 21 and the station's Expedition 33 crew processed it for launch.

"TechEdSat will evaluate plug-and-play technologies, like avionics designed by commercial providers, and will allow a group of very talented aerospace engineering students from San Jose State University to experience a spaceflight project from formulation through decommission of a small spacecraft," said Ames Director S. Pete Worden.

TechEdSat's mission showcases collaboration among NASA, academia and industry to set the standard for future endeavors with small satellites known as Cubesats.

TechEdSat is funded by Ames and NASA's Space Technology Program. The total cost was less than $30,000 because engineers used only commercial off-the-shelf hardware and simplified the design and mission objectives.

For more about TechEdSat, visit SJSU's site about the mission:
http://www.techedsat.com

For more about Ames Research Center, visit:
http://www.nasa.gov/ames

For more information about NASA education programs, visit:
http://www.nasa.gov/education


http://www.nasa.gov/home/hqnews/2012/oct/HQ_12-351_Tech_Ed_Sat.html

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Re: JAXA's Cubesat deploy plan from JEM
« Reply #68 on: 10/04/2012 11:23 pm »

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Re: LIVE: JAXA CubeSat deployment from JEM
« Reply #69 on: 10/05/2012 12:29 am »
So am I correct that the deployments were
 about 1432 UTC    Raiko/We Wish
 about 1544 UTC    FITSAT/F-1/TechEdSat

Anyone have more accurate times?

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Re: LIVE: JAXA CubeSat deployment from JEM
« Reply #70 on: 10/05/2012 01:06 am »
Video of the first deploy in today's ISS update (see from 1:40 to 3:26).



Very cool!

Of course it may not be long before garbage containers are jetisoned this way (should resupply missions get delayed significantly) ;)

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Re: LIVE: JAXA CubeSat deployment from JEM
« Reply #71 on: 10/05/2012 03:55 am »
So am I correct that the deployments were
 about 1432 UTC    Raiko/We Wish
 about 1544 UTC    FITSAT/F-1/TechEdSat

Anyone have more accurate times?

JAXA announced following time.
1437 UTC    Raiko/We Wish
1544 UTC    FITSAT/F-1/TechEdSat

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Re: LIVE: JAXA CubeSat deployment from JEM
« Reply #72 on: 10/05/2012 04:00 am »
FITSAT and We Wish are recieved RF successfully, but RAIKO is still no contact (It seems affected ground antenna trouble).

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Re: LIVE: JAXA CubeSat deployment from JEM
« Reply #73 on: 10/05/2012 04:41 am »
So am I correct that the deployments were
 about 1432 UTC    Raiko/We Wish
 about 1544 UTC    FITSAT/F-1/TechEdSat

Anyone have more accurate times?

JAXA announced following time.
1437 UTC    Raiko/We Wish
1544 UTC    FITSAT/F-1/TechEdSat


Thanks! Hope the RAIKO comm issue is resolved soon.

Edit: by the way: still no TLEs on Space-Track.
« Last Edit: 10/05/2012 04:43 am by jcm »
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Re: LIVE: JAXA CubeSat deployment from JEM
« Reply #74 on: 10/05/2012 06:07 am »

Edit: by the way: still no TLEs on Space-Track.


Here you are.

We Wish's TLE
---------------------------------------------------------------------
1 25544U 98067A   12278.60943630  .00017277  00000-0  30696-3 0  3551
2 25544  51.6281 297.6692 0029681 102.2513 150.5859 15.52690619000001
---------------------------------------------------------------------


J-SSOD#2:
Satellite Name: FITSAT-1, NanoRacks Cubesat-1, TechEdSat
http://turing.cs.fit.ac.jp/~fitsat/Orbital_Element.txt

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Re: LIVE: JAXA CubeSat deployment from JEM
« Reply #75 on: 10/05/2012 04:03 pm »
Get TechEdSat updates via Twitter @TechEdSat.

http://twitter.com/TechEdSat

Online Galactic Penguin SST

Re: LIVE: JAXA CubeSat deployment from JEM
« Reply #76 on: 10/09/2012 08:30 am »
So am I correct that the deployments were
 about 1432 UTC    Raiko/We Wish
 about 1544 UTC    FITSAT/F-1/TechEdSat

Anyone have more accurate times?

JAXA announced following time.
1437 UTC    Raiko/We Wish
1544 UTC    FITSAT/F-1/TechEdSat


Thanks! Hope the RAIKO comm issue is resolved soon.

Edit: by the way: still no TLEs on Space-Track.


They are finally up as of today: catalog numbers 38852 - 38856, designation 1998-067 CN/CP/CQ/CR/CS.
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Re: LIVE: JAXA CubeSat deployment from JEM
« Reply #77 on: 10/10/2012 01:02 pm »
RAIKO operation is started 2 days after deployment :)

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Re: LIVE: JAXA CubeSat deployment from JEM
« Reply #78 on: 10/11/2012 07:28 am »
Radio amateurs asked to help track and decode the F-1 CubeSat
http://www.uk.amsat.org/?p=10480

On Sunday, October 7 Thu Trong Vu XV9AA provided this update:
So far the team has received several mixed reports about F-1 status, there is no definite conclusion yet. We will continue to collect information and analyze the situation, this afternoon we will hold a team meeting to discuss different situations that may happen with the little satellite up there. Please continue to help us listening for F-1 on 437.485 in daylight and 145.980 in the dark, thank you!

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Re: LIVE: JAXA CubeSat deployment from JEM
« Reply #79 on: 10/18/2012 07:55 am »
Space Station Opens Launch Pad for Tiny Satellites
http://www.space.com/18098-space-station-launches-tiny-satellites.html

TechEdSat :-[
Quote
Only one major objective will be unmet. Initially the satellite was supposed to compare OrbComm and Iridium communications techniques in space, but there was not enough time to meet the licensing requirements before the launch date.

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Re: LIVE: JAXA CubeSat deployment from JEM
« Reply #80 on: 10/18/2012 03:07 pm »
Space Station Opens Launch Pad for Tiny Satellites
http://www.space.com/18098-space-station-launches-tiny-satellites.html

TechEdSat :-[
Quote
Only one major objective will be unmet. Initially the satellite was supposed to compare OrbComm and Iridium communications techniques in space, but there was not enough time to meet the licensing requirements before the launch date.

"Of the other four satellites released Oct. 4, one of them, F-1, was a collaboration of Houston-based space hardware developer NanoRacks, Uppsala University in Sweden and FPT University in Vietnam."

 ;D

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Re: LIVE: JAXA CubeSat deployment from JEM
« Reply #81 on: 10/18/2012 04:39 pm »

"Of the other four satellites released Oct. 4, one of them, F-1, was a collaboration of Houston-based space hardware developer NanoRacks, Uppsala University in Sweden and FPT University in Vietnam."

 ;D

 ;)
Learn something new everyday

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Re: LIVE: JAXA CubeSat deployment from JEM
« Reply #82 on: 10/18/2012 04:52 pm »

"Of the other four satellites released Oct. 4, one of them, F-1, was a collaboration of Houston-based space hardware developer NanoRacks, Uppsala University in Sweden and FPT University in Vietnam."

 ;D

 ;)

I guess I should say "Congratulations".

BTW, when is your launch on Interorbital?

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Re: LIVE: JAXA CubeSat deployment from JEM
« Reply #83 on: 10/19/2012 01:26 am »
Thank you, this is just our first small step in a long journey ahead.

Wrt the launch with Interorbital, they told me that it'll be in 2013. While I hate these launch slips, on the bright side they give us time to learn from F-1 project and better prepare for the next CubeSat launch.
Learn something new everyday

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Re: LIVE: JAXA CubeSat deployment from JEM
« Reply #84 on: 10/19/2012 01:44 am »
Thank you, this is just our first small step in a long journey ahead.

Wrt the launch with Interorbital, they told me that it'll be in 2013. While I hate these launch slips, on the bright side they give us time to learn from F-1 project and better prepare for the next CubeSat launch.

Replied on a more appropriate thread: http://forum.nasaspaceflight.com/index.php?topic=18780.msg969932#msg969932
« Last Edit: 10/19/2012 01:45 am by QuantumG »
Human spaceflight is basically just LARPing now.

Offline Fuji

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Re: LIVE: JAXA CubeSat deployment from JEM
« Reply #85 on: 10/23/2012 01:44 am »
FITSAT-1 capture the ISS photo.
FITSAT-1 is programmed to shooting the ISS when activated.
This is preliminary photo. Now proceessing more clear coding.
https://twitter.com/fit_sat1/status/259892333464657920/photo/1

Offline Fuji

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Re: LIVE: JAXA CubeSat deployment from JEM
« Reply #86 on: 10/27/2012 05:50 am »
Another FITSAT-1 photo. Recieved 5.8GHz data link.

https://twitter.com/fit_sat1/status/262058240068698112/photo/1

Offline Fuji

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Re: LIVE: JAXA CubeSat deployment from JEM
« Reply #87 on: 11/06/2012 04:09 am »
Attempt to Recover the F-1 Amateur Radio CubeSat
http://www.uk.amsat.org/?p=11322

November 2, 2012, FSpace laboratory, FPT University issued an official report stating that no signal is heard from F-1 CubeSat after its deployment to space from the International Space Station (ISS) a month ago. However, the project team confirms that they are working to troubleshoot the problem.

Preliminary analysis points to failure of the satellite’s power supply subsystem as the cause of the problem. At the moment FSpace team together with US partner NanoRacks are collecting information, analyzing different scenarios that could happen to the satellite in orbit and experimenting with the Engineering Model

Offline Fuji

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Re: LIVE: JAXA CubeSat deployment from JEM
« Reply #88 on: 11/27/2012 06:31 am »
FITSAT-1 Flashing LED is captured from ground camera.
Reported brightness are almost 8.

Offline Prober

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Re: LIVE: JAXA CubeSat deployment from JEM
« Reply #89 on: 12/10/2012 03:02 am »
S. Korea has just gotten into this Cube or nano sat business.

I saw a video about it the other night and hope it gets uploaded soon.

Until then this is another story on it.

http://www.arirang.co.kr/Player/News_Vod.asp?code=News&nSeq=141680

The key point is that this is a new business and from what I understand of it, they will mass manufacture these and export them.

2017 - Everything Old is New Again.
"I fear all we have done is to awaken a sleeping giant..." --Isoroku Yamamoto

Offline Fuji

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Re: LIVE: JAXA CubeSat deployment from JEM
« Reply #90 on: 07/04/2013 01:43 pm »
FITSAT-1 Ham Radio CubeSat to De-orbit by July 4 – Reports Requested
http://amsat-uk.org/2013/06/29/fitsat-1-ham-radio-cubesat-to-de-orbit-reports-requested/

Good Chart!
Thanks Masahiro Arai JN1GKZ.

Offline Fuji

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Re: LIVE: JAXA CubeSat deployment from JEM
« Reply #91 on: 07/24/2013 01:21 am »
4 CubeSats will be deliverd by HTV4.
-PicoDragon (1U)
-TechEdSat-3 (3U)
-ArduSat-1 (1U)
-ArduSat-X (1U)

Source (Japanese):
http://aerospacebiz.jaxa.jp/jp/ainori/data/topics_20130723.pdf

Offline Fuji

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Re: LIVE: JAXA CubeSat deployment from JEM
« Reply #92 on: 08/22/2013 07:52 am »
These are not CubeSat actually smallsat, but very interesting information.

Smallsats Finding New Applications
http://www.aviationweek.com/Article.aspx?id=/article-xml/AW_08_19_2013_p37-606408.xml#
Quote
A case in point is Spinsat, which is set for “soft stowage” launch in the pressurized portion of the SpaceX Dragon headed to the International Space Station (ISS) next April. A station crewmember will carry the 22-in. sphere, essentially packed in a fabric bag, from the Dragon into the station and leave it there until its scheduled deployment through the Japanese module's airlock. NASA safety experts approved the mission because the satellite's 12 thruster-clusters burn an inert solid fuel called Hipep, and only when an electric charge is passed across it.

In space, the Naval Research Laboratory satellite will demonstrate the DSSP thruster technology in a series of maneuvers, and also serve as a reflector for ground-based laser ranging to study atmospheric drag. It is one of two very different spacecraft that will be passed through the Japanese airlock and released from the end of one of the station's robotic arms to test a new NASA deployer known as Cyclops.

Engineers at Johnson Space Center designed Cyclops to handle as many different spacecraft shapes as possible, grappling them with a special fixture, squeezing through the airlock tunnel and attaching to the end of the Canadian or Japanese-built arms to release them down and away from the back of the station to avoid recontact. In addition to the U.S. Navy's Spinsat, the Cyclops test in April will deploy a rectangular satellite—Lonestar-2—built by Texas college students.


Attached file is "Space Station Integrated Kinetic Launcher for Orbital Payload Systems (SSIKLOPS)-Cyclops".
« Last Edit: 08/22/2013 07:53 am by Fuji »

Offline IRobot

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Re: LIVE: JAXA CubeSat deployment from JEM
« Reply #93 on: 08/22/2013 11:33 am »
Weir, isn't Hipep an ion engine running Xenon?

Offline ClaytonBirchenough

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Re: LIVE: JAXA CubeSat deployment from JEM
« Reply #94 on: 08/25/2013 10:52 pm »
Weir, isn't Hipep an ion engine running Xenon?

... yeah that doesn't make any sense. HiPEP stands for high power electric propulsion; an ion thruster... I thought.
Clayton Birchenough

Offline ClaytonBirchenough

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Re: LIVE: JAXA CubeSat deployment from JEM
« Reply #95 on: 08/25/2013 11:17 pm »
Also, should we have a dedicated thread for satellite deployments via the ISS or should this thread be renamed?
Clayton Birchenough

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