Author Topic: SpaceMobile Constellation (AST & Science)  (Read 161015 times)

Online StraumliBlight

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Re: SpaceMobile Constellation (AST & Science)
« Reply #200 on: 08/22/2025 12:02 am »
0909-EX-CN-2025 [Aug 21]

Quote from: Narrative
AST & Science, LLC hereby submits this application for a conventional experimental radio license to test off-the-shelf cellular handsets operating as mobile earth stations within a 24 km area in Texas, consistent with the terms and conditions of its existing special temporary authority for experimental testing of the same devices authorized to operate on the First Responder Network Authority’s nationwide public safety broadband network.

Offline catdlr

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Re: SpaceMobile Constellation (AST & Science)
« Reply #201 on: 08/23/2025 06:36 am »
Video post

Quote
AST SpaceMobile
@AST_SpaceMobile
·

🚀BlueBird 6 is ready to ship in August, and we are building microns and phased arrays for our next 40 satellites by early 2026!
- Starting our campaign of launches every one to two months on average during 2025 and 2026
- Over 400k sq ft of production facilities available soon
- 1,200 workforce with satellite manufacturing in the USA
- Microns to be completed for 40 BlueBirds by early 2026
- Capacity to build 6 BlueBirds/month by year-end
At 2,400 sq ft, our next-gen BlueBirds will feature the largest commercial communications arrays ever in low Earth orbit—delivering space-based cellular broadband to everyone, everywhere, for good.

https://twitter.com/AST_SpaceMobile/status/1958999676918931944
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Re: SpaceMobile Constellation (AST & Science)
« Reply #202 on: 09/01/2025 04:09 pm »
False, the AST issues don't apply to Starlink at all. For example SpaceX didn't complain about AST's satellite being too large, they said AST didn't follow the rules and complete the paperwork (e.g. coordinate with NSF). There's nothing wrong with large satellite if you can show you complied with the rules.

Not at all:

Quote
1. "given the massive size of these satellites, AST should have taken an even more conservative approach" [beyond SOP]
2. "The difference in collision risk [...] is particularly stark in this case given the size of these spacecraft"
3. "The proposed Block 2 satellites are three times larger, presenting an even greater threat to optical astronomy"
[ ...and my personal favorite, the pinnacle of hypocrisy... ]
4. "AST routinely brags about the outlandish size of its satellites. But these large satellites may dramatically increase the risk of all operations in their orbits and below. If anything, given the size of these satellites, AST should be willing to go beyond what was required for others [lol] so that it can mitigate the risks it intends to cause"

Except their critique of untransparent demisability for some components and propellant budgeting (both minor points in the document, and technically), the rest of the letter is JUST about complaining about the implications of the S/C sizes, even deriding them explicitly. Rich when v3 Starlinks would be quite a bit larger, and v2 are already quite hefty, plus orders of magnitude more numerous.

Wrong on all accounts

Literally every statement you quoted is not a complaint about size, but criticizing AST for not following the rules and requirements:
1. AST's evaluation of collision probability didn't consider uncontrolled tumble.
2. AST didn't assess passive decay large debris collision probability or passive decay dwell time
3. AST didn't coordinate with NSF wrt Block 2
4. AST didn't comply with the requirements FCC levied on Starlink Gen2

So there is no "complaining about the implications of the S/C sizes", instead the complain is about AST doesn't follow rules and requirements.

What do you mean they didn't coordinate with NSF? - they did, it's also in the application.

https://feeds.issuerdirect.com/news-release.html?newsid=6843073618067527&symbol=ASTS

"In addition, AST SpaceMobile has successfully concluded a coordination agreement with the U.S.
National Science Foundation (NSF) to collaborate with NSF facilities and the U.S. astronomical
community to mitigate the impacts of AST SpaceMobile’s satellites on ground-based astronomy
facilities."

"31 See NSF's ongoing technical coordination with satellite constellation operators, U.S. Nat'l Science Foundation
(May 6, 2025), https://www.nsf.gov/mps/updates/nsfs-ongoing-technical-coordination-satellite-constellation; ICFS
File No. SAT-AMD-20240311-00053, NSF Agreement (filed May 9, 2025)."

Re: SpaceMobile Constellation (AST & Science)
« Reply #203 on: 09/01/2025 04:15 pm »
FCC approves AST SpaceMobile to Launch & TT& Comms for 20 BlueBird Block 2 Satellites. Says most of SpaceX complaints are moot.

"AST submitted its full orbital debris mitigation plan in the public record, and we find SpaceX’s
request moot."

https://fccprod.servicenowservices.com/icfs?id=ibfs_application_summary&number=SAT-MOD-20250612-00145

"ICFS File No(s): SAT-MOD-20250612-00145; SAT-AMD-20250718-
001811
GRANTED IN PART/
DEFERRED IN PART –
With Conditions
Space Bureau
Satellite Policy and Programs
Division
Licensee/Grantee: AST & Science LLC (AST)
Call Sign: S3065
Satellite Name: AST SpaceMobile
Orbital Location:
(required station-
keeping tolerance)
Non-geostationary orbit (NGSO). 25 total satellites.
5 satellites operating in 1 plane at an apogee of 525 km
(± 25 km) and perigee of 515 km (± 25 km) and
inclination of 53.0 degrees (± 1 degrees). Mean
anomalies of 216 degrees, 126 degrees, 40 degrees, 32
degrees, and 306 degrees.
2 Operations down to an
altitude as low as 425 km.3
2 satellites deployed to an altitude of 520-530 km and
operating at an apogee of 515 km (± 1 km) and perigee
of 520 km (± 1 km) with an inclination of 53 degrees (±
1 degrees).
18 satellites deployed to an altitude of 530 km and
operating at an apogee of 685 km (± 1 km) and perigee
of 690 km (± 1 km) with an inclination of 53 degrees (±
1 degrees). Operations down to an altitude of
approximately 530 km.4
Administration: United States of America
Nature of Service: Fixed-Satellite Service (FSS) and Space Operation5
Scope of Grant: Authority to deploy 20 additional low-Earth orbit NGSO space stations and to perform
telemetry, tracking, and command (TT&C) operations using those satellites.

Online StraumliBlight

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Re: SpaceMobile Constellation (AST & Science)
« Reply #204 on: 09/04/2025 03:57 pm »
SAT-AMD-20250903-00248 partially granted on September 3rd.

https://twitter.com/FREESPEECH1017/status/1963352746532507841

Quote
Appears that they are now largely punting on the polar orbits, with a move of all but 2 satellites to 53 degrees

Offline catdlr

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Re: SpaceMobile Constellation (AST & Science)
« Reply #205 on: 09/04/2025 07:28 pm »
Quote
AST SpaceMobile@AST_SpaceMobile
·

BlueBird 6 is fully assembled, and final tests are being completed imminently to be ready for shipment! 🚀🚀🚀🚀🚀🚀

BlueBirds 7, 8, 9, 10, 11, 12, 13, 14, 15, and 16 are in various stages of production, targeting to complete all phased arrays this month. We are on track to complete 40 phased arrays by early 2026, bringing us to BlueBird 46. Each BlueBird is the largest commercial satellite ever launched to low Earth orbit!

This is just the start of our deployment roadmap, with launches every 1-2 months on average moving forward, and 20 satellites approved to launch by the FCC — and more to come. The future of space-based cellular broadband connectivity is around the corner! 🌎📱📶💪

https://x.com/AST_SpaceMobile/status/1963649717511811104
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Offline catdlr

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Re: SpaceMobile Constellation (AST & Science)
« Reply #206 on: 09/04/2025 08:18 pm »
AST SpaceMobile: How we made BlueBird 6

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Offline Kiwi53

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Re: SpaceMobile Constellation (AST & Science)
« Reply #207 on: 09/05/2025 03:27 am »
"AST SpaceMobile: How we made BlueBird 6"

And then AST provides a video with about 90% of the things in shot carefully blurred out.
This is actually "AST SpaceMobile: We can't tell you how we made BlueBird 6"

LOLsob

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Re: SpaceMobile Constellation (AST & Science)
« Reply #208 on: 10/01/2025 12:40 am »
From X:

Quote from: AST SpaceMobile
BlueBird 6 has completed final assembly and testing and is ready for flight! 🚀🚀🚀🚀🚀🚀 On October 12, it will head to India aboard an Antonov large cargo plane ✈️

We are officially kicking off our next-gen launch campaign:
• BlueBird 7 is expected to ship to the Cape Canaveral launch site in October
• BlueBirds 8-16 are in various stages of production, with launches planned every 1-2 months on average during 2025 and 2026
• On track to complete 40 phased arrays by early 2026, bringing us to BlueBird 46
• Expecting 45-60 satellites in orbit by year-end 2026

We have partnered with 50+ mobile network operators serving nearly 3 billion subscribers, supported by a flexible spectrum strategy blending our own licensed spectrum with partner spectrum. These BlueBirds will be the largest commercial satellites ever deployed in LEO – each featuring a 2,400 sq ft phased array with true direct-to-cell broadband, capable of up to 10,000 MHz of processing bandwidth and peak speeds of 120 Mbps per cell 🌎📶#5G


http://twitter.com/ast_spacemobile/status/1973140310478688452

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Re: SpaceMobile Constellation (AST & Science)
« Reply #210 on: 10/06/2025 01:31 pm »
Article in Ars today: Elon Musk tries to make Apple and mobile carriers regret choosing Starlink rivals
Good overview article, but I think the headline is misleading. Based on the article,  SpaceX/Musk are not explicitly trying to cause this "regret". They are trying to provide worldwide cellular service in under-served areas, and they are likely to succeed. That's just normal business. Apple and other may in fact regret certain past decisions, but that's a consequence of SpaceX' success, not a result of actions deliberately intended to cause regret.

Offline nklsd21

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« Last Edit: 10/29/2025 05:51 pm by nklsd21 »

Online StraumliBlight

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Re: SpaceMobile Constellation (AST & Science)
« Reply #212 on: 11/10/2025 09:11 pm »

Offline nklsd21

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Re: SpaceMobile Constellation (AST & Science)
« Reply #213 on: 11/26/2025 09:06 pm »
ISRO launch update
« Last Edit: 11/26/2025 09:08 pm by nklsd21 »

Offline nklsd21

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Re: SpaceMobile Constellation (AST & Science)
« Reply #214 on: 12/02/2025 09:53 am »
''5 launches by end of March 2026, starting in two weeks on December 15th''

Offline lightleviathan

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Re: SpaceMobile Constellation (AST & Science)
« Reply #215 on: 12/02/2025 10:21 am »
''5 launches by end of March 2026, starting in two weeks on December 15th''

That's an interesting looking Falcon 9  ::)
« Last Edit: 12/02/2025 10:21 am by lightleviathan »

Online StraumliBlight

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Re: SpaceMobile Constellation (AST & Science)
« Reply #216 on: 12/02/2025 10:47 am »
That's an interesting looking Falcon 9  ::)

From this fan concept, the New Glenn picture is also outdated.

Offline nklsd21

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Re: SpaceMobile Constellation (AST & Science)
« Reply #217 on: 12/12/2025 12:21 pm »

Online StraumliBlight

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Re: SpaceMobile Constellation (AST & Science)
« Reply #218 on: 12/18/2025 06:40 pm »


Quote from: Jennifer Manner, AST VP
[35:30] We plan to have 45 to 60 satellites in space by year end of 2026, which will enable continuous coverage of the United States.

Online edzieba

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Re: SpaceMobile Constellation (AST & Science)
« Reply #219 on: 12/19/2025 09:32 am »
Article in Ars today: Elon Musk tries to make Apple and mobile carriers regret choosing Starlink rivals
Good overview article, but I think the headline is misleading. Based on the article,  SpaceX/Musk are not explicitly trying to cause this "regret". They are trying to provide worldwide cellular service in under-served areas, and they are likely to succeed. That's just normal business. Apple and other may in fact regret certain past decisions, but that's a consequence of SpaceX' success, not a result of actions deliberately intended to cause regret.
There's also the technical aspect:
ASTs satellites target existing bands and existing radios in devices already produced. If you have a device with a GSM radio, it can talk to those satellites.
Starlink's new spectrum requires new end user devices, and for those devices to accommodate new radios that use this new spectrum. Which first requires those radios to be developed. Which first requires the standard those radios will use to talk to Starlink satellites to be nailed down. Of SpaceX's many skills, setting a specification in advance of hardware and sticking to it is not one of their strong points - that rapid variability is something that works when they control both ends of the chain and all inbetween (e.g. Starlink terminals), but they may find commodity radio manufacturers are not so eager to try and incorporate a moving target.

 

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