Author Topic: SpaceX Falcon 9 : SAOCOM 1A : Oct. 7/8, 2018 : Vandenberg - DISCUSSION  (Read 94706 times)

Offline Michael Baylor

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Re: SpaceX Falcon 9 : SAOCOM 1A : Oct. 6, 2018 : Vandenberg
« Reply #40 on: 09/21/2018 11:14 pm »
Argentina bets on $600 million satellite to boost agriculture sector
Quote
Scheduled to launch on a SpaceX Falcon rocket from Vandenberg Air Force Base in California on Oct. 6, Argentina’s SAOCOM 1a satellite “is going to boost the high quality precision agriculture Argentina relies on,” President Mauricio Macri told farmers and industry representatives last week.
This is accurate per L2.

Offline Michael Baylor

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Re: SpaceX Falcon 9 : SAOCOM 1A : Oct. 6, 2018 : Vandenberg
« Reply #41 on: 09/22/2018 10:01 pm »
Per L2, liftoff is currently scheduled for 19:22 local time on October 6th. That's October 7th at 2:22 UTC.

Offline Jdeshetler

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Re: SpaceX Falcon 9 : SAOCOM 1A : Oct. 6/7, 2018 : Vandenberg
« Reply #42 on: 09/25/2018 02:58 am »
The sonic boom pattern was taken from Cape Canaveral (based by Patrick Air Force Base) and overlayed over Vandenberg assuming if the polar azimuth orbit is correct.

Purple is the most overpressure while yellow is 2nd.

« Last Edit: 09/25/2018 03:40 am by Jdeshetler »

Offline AstroBrewer

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Re: SpaceX Falcon 9 : SAOCOM 1A : Oct. 6/7, 2018 : Vandenberg
« Reply #43 on: 09/29/2018 08:08 pm »
Per L2, liftoff is currently scheduled for 19:22 local time on October 6th. That's October 7th at 2:22 UTC.

Sunset on October 6th is at 18:37 local, about 45 minutes before launch.  Is that too late to make a spectacular plume display?  My real simple geometry gives an estimate of sunlight at ~125km altitude (if I did that right) which I think is well above where the first stage separates, and probably well downrange as well.  But I'm guessing that the boostback burn of the first stage should be sunlit. 

I took a look back at the Iridium 4 launch last December that resulted in all those UFO reports.  It was about 30 minutes after sunset, so maybe this will be close enough to be good.  I'm surprised that there hasn't been a lot more buzz about this dusk launch, especially being the first VAFB RTLS and all. 
« Last Edit: 10/03/2018 03:36 pm by AstroBrewer »

Offline mme

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Re: SpaceX Falcon 9 : SAOCOM 1A : Oct. 6/7, 2018 : Vandenberg
« Reply #44 on: 09/29/2018 09:21 pm »
Per L2, liftoff is currently scheduled for 19:22 local time on October 6th. That's October 7th at 2:22 UTC.

Sunset on October 6th is at 18:37 local, about 45 minutes before launch.  Is that to late to make a spectacular plume display?  My real simple geometry gives an estimate of sunlight at ~125km altitude (if I did that right) which I think is well above where the first stage separates, and probably well downrange as well.  But I'm guessing that the boostback burn of the first stage should be sunlit. 

I took a look back at the Iridium 4 launch last December that resulted in all those UFO reports.  It was about 30 minutes after sunset, so maybe this will be close enough to be good.  I'm surprised that there hasn't been a lot more buzz about this dusk launch, especially being the first VAFB RTLS and all.
Seems plausible the second stage will create an sunlit plume in a dark sky.  The current forecast is clear weather and that is the most important factor for VAFB.  Being an RTLS, I bet that the boost back will be very soon after separation and that can make for an amazing light show as the two stages' exhausts interact.
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Offline IntoTheVoid

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L2 confirms the booster is on the pad for the Static Fire test today:

https://www.nasaspaceflight.com/2018/10/spacex-falcon-9-for-static-fire-saocom-1a-first-west-rtls/ - by Ian Atkinson
Quote from: The Article
LZ-4 is situated approximately 0.3km from SLC-4E, where SAOCOM-1A will launch from. This is much different than the setup at Cape Canaveral, where LZ-1 is over 9km from SLC-40.

The smaller distance will help to reduce the minimum time between launches, as it will take much less time to ship the landed first stage back to the Horizontal Integration Facility (HIF) to ready it for another launch.

Generally, the articles and discussion here at NSF are great, but without some justification, this just comes across as silly. The 9km between LZ-1 and LC-40 as gating the turn around time? such that SLC-4E can be faster?
Unless they just contracted booster movement to Radio Flyer, I'm just not seeing it.
« Last Edit: 10/02/2018 08:36 pm by IntoTheVoid »

Offline marsbase

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Strangely, nowhere in the article does it say when the launch is scheduled.

Offline Alexphysics

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Strangely, nowhere in the article does it say when the launch is scheduled.

Second paragraph

Quote
Launch is scheduled for No Earlier Than (NET) 7:22PM Pacific time (2:22 UTC) on October 6 (October 7 UTC) from SLC-4E at Vandenberg Air Force Base. It will be the first launch from SLC-4E since the Iridium NEXT 7 flight on July 25, 2018.

Offline Lar

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L2 confirms the booster is on the pad for the Static Fire test today:

https://www.nasaspaceflight.com/2018/10/spacex-falcon-9-for-static-fire-saocom-1a-first-west-rtls/ - by Ian Atkinson
Quote from: The Article
LZ-4 is situated approximately 0.3km from SLC-4E, where SAOCOM-1A will launch from. This is much different than the setup at Cape Canaveral, where LZ-1 is over 9km from SLC-40.

The smaller distance will help to reduce the minimum time between launches, as it will take much less time to ship the landed first stage back to the Horizontal Integration Facility (HIF) to ready it for another launch.

Generally, the articles and discussion here at NSF are great, but without some justification, this just comes across as silly. The 9km between LZ-1 and LC-40 as gating the turn around time? such that SLC-4E can be faster?
Unless they just contracted booster movement to Radio Flyer, I'm just not seeing it.
Boosters, even on fancy transporters are not going to go much over 20-30 kph and probably a lot slower through any corners, intersections, tight spots, etc.

If you are looking at 8 weeks turnaround 3 hours vs 1/2 hour is indeed noise.

But if you want 24 hour turnaround, that time starts to matter more. It's an aspirational statement but it didn't bother me a bit. It's true.
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Offline marsbase

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Strangely, nowhere in the article does it say when the launch is scheduled.

Second paragraph

Quote
Launch is scheduled for No Earlier Than (NET) 7:22PM Pacific time (2:22 UTC) on October 6 (October 7 UTC) from SLC-4E at Vandenberg Air Force Base. It will be the first launch from SLC-4E since the Iridium NEXT 7 flight on July 25, 2018.
It says that now but not when I read it earlier.  The time was there but not the date.

Offline deruch

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L2 confirms the booster is on the pad for the Static Fire test today:

https://www.nasaspaceflight.com/2018/10/spacex-falcon-9-for-static-fire-saocom-1a-first-west-rtls/ - by Ian Atkinson
Quote from: The Article
LZ-4 is situated approximately 0.3km from SLC-4E, where SAOCOM-1A will launch from. This is much different than the setup at Cape Canaveral, where LZ-1 is over 9km from SLC-40.

The smaller distance will help to reduce the minimum time between launches, as it will take much less time to ship the landed first stage back to the Horizontal Integration Facility (HIF) to ready it for another launch.

Generally, the articles and discussion here at NSF are great, but without some justification, this just comes across as silly. The 9km between LZ-1 and LC-40 as gating the turn around time? such that SLC-4E can be faster?
Unless they just contracted booster movement to Radio Flyer, I'm just not seeing it.

The hassle of transporting the recovered boosters is an appreciable one at the Cape.  Whereas for the VAFB recoveries, everything will be taking place not just within the base but, if they're doing the refurb work in the HIF of SLC-4, within the perimeter of a single launch complex.  This means it's much less of a disruption for the other users of the base and requires much less scheduling and coordination with security/police for escort/traffic control/etc.  These are not totally trivial considerations and could help in speeding up average turn around times.
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Offline rocket-chris

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I have a question about the payloas mass. Most sources i found give a payload mass of
approximately 1600kg not 3000kg.

https://space.skyrocket.de/doc_sdat/saocom-1.htm
https://en.wikipedia.org/wiki/SAOCOM

Even on eoportal https://directory.eoportal.org/web/eoportal/satellite-missions/s/saocom
they are not sure:

At some part they write:
"Each SAOCOM-1 spacecraft (SAOCOM-1A and SAOCOM-1B) has an estimated wet mass of ~1600 kg. The mission design life is 5 years"

Further down:

"SAOCOM -1A features six computers that work in synchronicity; the spacecraft has a mass of 3,000 kg. Its antenna, designed in central Cordoba province, is composed of 140 smaller antennas. As many as 600 Argentine professionals have been working on the $500 million-satellite since 2011."

So whats true? 1600kg or 3000kg?



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Offline Brovane

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Who is going to try and see this launch and landing in person? 

I was planning to try and attend this in person.  I am expecting major crowds for this.  Considering it is the weekend and it is the first RTLS on the west coast. 
« Last Edit: 10/03/2018 04:00 pm by Brovane »
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I'm planning to be up there with my long lens as usual. Ocean Ave is going to be swamped.
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Offline Comga

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Who is going to try and see this launch and landing in person? 

I was planning to try and attend this in person.  I am expecting major crowds for this.  Considering it is the weekend and it is the first RTLS on the west coast. 

There is a thread for that.
Also, check L2 if you can.
What kind of wastrels would dump a perfectly good booster in the ocean after just one use?

Offline GWR64

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Offline whitelancer64

Who is going to try and see this launch and landing in person? 

I was planning to try and attend this in person.  I am expecting major crowds for this.  Considering it is the weekend and it is the first RTLS on the west coast.

I'm planning on going, barring a reschedule of the launch. First launch I'm planning to see up close! I'm going to drag along anyone who's interested, since it should be a fantastic show with sunlit upper stage activity and the double sonic boom on landing!

I expect a big crowd there as well, I'm going to try to arrive early, even though it's a 3 hour drive for me.
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Offline Lars-J

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L2 confirms the booster is on the pad for the Static Fire test today:

https://www.nasaspaceflight.com/2018/10/spacex-falcon-9-for-static-fire-saocom-1a-first-west-rtls/ - by Ian Atkinson
Quote from: The Article
LZ-4 is situated approximately 0.3km from SLC-4E, where SAOCOM-1A will launch from. This is much different than the setup at Cape Canaveral, where LZ-1 is over 9km from SLC-40.

The smaller distance will help to reduce the minimum time between launches, as it will take much less time to ship the landed first stage back to the Horizontal Integration Facility (HIF) to ready it for another launch.

Generally, the articles and discussion here at NSF are great, but without some justification, this just comes across as silly. The 9km between LZ-1 and LC-40 as gating the turn around time? such that SLC-4E can be faster?
Unless they just contracted booster movement to Radio Flyer, I'm just not seeing it.

The hassle of transporting the recovered boosters is an appreciable one at the Cape.  Whereas for the VAFB recoveries, everything will be taking place not just within the base but, if they're doing the refurb work in the HIF of SLC-4, within the perimeter of a single launch complex.  This means it's much less of a disruption for the other users of the base and requires much less scheduling and coordination with security/police for escort/traffic control/etc.  These are not totally trivial considerations and could help in speeding up average turn around times.

Not trivial, but close to meaningless in the big picture. I imagine it takes at most a day to move the booster from the landing to the prep area. Probably much less then a day. So until your refurbishment time is down into 'a week' time range, you aren't putting a meaningful dent into the processing time.
« Last Edit: 10/03/2018 05:20 pm by Lars-J »

Offline ZachS09

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If SpaceX confirmed a good static fire for the October 6/7 date, why would they slip until later?
« Last Edit: 10/03/2018 07:27 pm by ZachS09 »
Liftoff for St. Jude's! Go Dragon, Go Falcon, Godspeed Inspiration4!

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