Author Topic: Amazon Project Kuiper Broadband Constellation  (Read 195014 times)

Offline su27k

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Re: Amazon Project Kuiper Broadband Constellation
« Reply #160 on: 12/17/2020 02:21 am »
https://twitter.com/jeff_foust/status/1339306611488288768

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Interesting comment at TC Sessions: Space by Amazon’s David Limp about launching its Project Kuiper constellation: we hope that Blue Origin can provide launch capacity, but hope others will, too. Expecting to use multiple launch providers.

Online LouScheffer

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Re: Amazon Project Kuiper Broadband Constellation
« Reply #161 on: 12/17/2020 04:39 am »
[CNBC] Amazon streamed 4K video from a satellite with a prototype antenna for its Kuiper internet network

Amazon testing Ka-band phased array antenna that will be used for Kuiper.
The Kuiper antenna looks harder to manufacture for low cost than SpaceX's antenna.  The uplink frequency is higher (28 GHz vs 14 GHz) so the element spacing will need to be half as great (to avoid sidelobes, which is probably needed on transmit to avoid interfering with other users).  The antenna is smaller (30 cm vs 50 cm) but that's still 1.44x as many elements, plus they need to run at twice the frequency, which typically means lower efficiency and harder to implement in CMOS.

The higher density of power-dissipating elements may also make cooling more difficult.  In the photo in the article, it looks like there's a fan  to cool the board.

Offline TrevorMonty

Re: Amazon Project Kuiper Broadband Constellation
« Reply #162 on: 12/17/2020 08:48 am »
I see Amazon using Kuiper network to give their AWS customers a secure private connection to AWS network. This is especially important for their government customers.
Its matter of time before AWS competitors (Google and Microsoft) partner up with SpaceX to offer similar service.

Offline grondilu

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Re: Amazon Project Kuiper Broadband Constellation
« Reply #163 on: 12/17/2020 10:22 am »
I see Amazon using Kuiper network to give their AWS customers a secure private connection to AWS network. This is especially important for their government customers.

I'm not sure why satellite internet access would be more secure than ground-based internet access.  Aren't encryption methods exactly the same ?

Perhaps you mean that satellites are by nature difficult to tamper with, unlike say intercontinental fiber cables ?

Offline edzieba

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Re: Amazon Project Kuiper Broadband Constellation
« Reply #164 on: 12/17/2020 11:53 am »
A satellite RF PHY link is no more secure than a terrestrial RF link (or a fibre PHY or copper PHY link), and only very very marginally less secure, and even then only in that your sidelobes cover a physically larger area making it harder to notice a snooper - though the assumption should be that every link exiting your directly controlled area should be assumed to be monitored at all times by any adversary (i.e. plaintext transport is terminally stupid) regardless.

Offline LiamS

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Re: Amazon Project Kuiper Broadband Constellation
« Reply #165 on: 12/17/2020 02:54 pm »
I see Amazon using Kuiper network to give their AWS customers a secure private connection to AWS network. This is especially important for their government customers.
Its matter of time before AWS competitors (Google and Microsoft) partner up with SpaceX to offer similar service.

Microsoft already has partnered with SpaceX, among other satellite connectivity providers, they have even announced an 'Azure in a box' product, which is a couple of server racks in a shipping container with satellite backhaul, which is meant for 'tactical deployments'

news.microsoft.com/transform/azure-space-partners-bring-deep-expertise-to-new-venture

https://azure.microsoft.com/en-us/blog/introducing-the-microsoft-azure-modular-datacenter/

Offline high road

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Re: Amazon Project Kuiper Broadband Constellation
« Reply #166 on: 12/18/2020 09:41 am »
I see Amazon using Kuiper network to give their AWS customers a secure private connection to AWS network. This is especially important for their government customers.

I'm not sure why satellite internet access would be more secure than ground-based internet access.  Aren't encryption methods exactly the same ?

Perhaps you mean that satellites are by nature difficult to tamper with, unlike say intercontinental fiber cables ?

Isn't it the reverse, that other parties can listen in to communication via satellite more easily without any trace that any anything is going on? So you need to invest in hardware and software that allow better encryption of data to allow those customers to switch to space based internet over a land line that is safer but clunky and slow due to a bottleneck somehwere.

(I once saw one of my friends hack the wifi network of our hotel by collecting 'packages', don't ask me how it works)
« Last Edit: 12/18/2020 09:44 am by high road »

Offline grondilu

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Re: Amazon Project Kuiper Broadband Constellation
« Reply #167 on: 12/18/2020 11:18 am »
Isn't it the reverse, that other parties can listen in to communication via satellite more easily without any trace that any anything is going on?

Internet is by design a communication system where messages are split in packets that are routed all over the network.  Basically anyone can see packets circulating, what ensures privacy is not a lack of visibility of the packets, but the fact what they contain is encrypted at some point in the TCP/IP stack.

I doubt internet satellite changes anything but the most outer layers, and those are not critical for privacy.  If it does then it's not truly an internet protocol.
« Last Edit: 12/18/2020 11:19 am by grondilu »

Offline su27k

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Re: Amazon Project Kuiper Broadband Constellation
« Reply #168 on: 12/28/2020 03:53 am »
https://twitter.com/jeff_foust/status/1339306611488288768

Quote
Interesting comment at TC Sessions: Space by Amazon’s David Limp about launching its Project Kuiper constellation: we hope that Blue Origin can provide launch capacity, but hope others will, too. Expecting to use multiple launch providers.

More details from this talk in this article:Project Kuiper plus AWS: How Amazon’s cloud and satellite internet ventures mesh

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“I’d say we are in the middle of our design phase,” Dave Limp, the senior vice president who’s in charge of Kuiper, said at a TechCrunch space conference.

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Limp noted that creating a satellite internet constellation doesn’t come cheap. “We’ve already committed $10 billion to this effort. It may require more, but that’s the kind of good project that Amazon can do,” he said. “You know, it’s hard for a company that’s four people in a garage to put up a constellation.”

After dealing with challenges brought on by the coronavirus pandemic, Project Kuiper has begun using a newly remodeled research and development facility in Redmond, Wash., Limp said. “The reason it needed dedicated facilities is, the equipment needed to test and service and build prototypes of this nature is just very different than it would be to build an Echo or even a robot for one of our fulfillment centers,” he said. “We need vacuum chambers, and we need very big antennas to test the radio frequencies.”

Limp said Project Kuiper started the year with about 150 employees. “I think our goal to end the year is about three X that,” he said. “We’re kind of on that path, plus or minus a few people.” Nearly 140 job openings, including 110 in Redmond, are listed on Amazon’s website for Project Kuiper.
« Last Edit: 12/28/2020 03:53 am by su27k »

Online gongora

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Re: Amazon Project Kuiper Broadband Constellation
« Reply #169 on: 04/01/2021 06:39 pm »
Amazon has applied for ground stations in Mount Ulla, NC and Rawlins, WY.  Each site will have six 2.4m antennas.

https://fcc.report/IBFS/SES-LIC-INTR2021-01312
https://fcc.report/IBFS/SES-LIC-INTR2021-01310

Online gongora

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Re: Amazon Project Kuiper Broadband Constellation
« Reply #170 on: 04/16/2021 12:33 am »
Gateway filing for Casa Grande, AZ.
« Last Edit: 04/16/2021 12:33 am by gongora »

Offline FutureSpaceTourist

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Re: Amazon Project Kuiper Broadband Constellation
« Reply #171 on: 04/19/2021 04:12 pm »
Wow, that’s going to cost a bit

https://www.cnbc.com/2021/04/19/amazon-signs-ula-rockets-to-launch-bezos-kuiper-internet-satellites.html

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Amazon signs with ULA for rockets to launch Jeff Bezos’ Kuiper internet satellites
PUBLISHED MON, APR 19 202112:01 PM EDT
Michael Sheetz
@THESHEETZTWEETZ

KEY POINTS
Amazon signed a contract for nine launches of its Project Kuiper internet satellites on United Launch Alliance’s Atlas V rockets.

“We’re determined to make affordable broadband a reality for customers and communities around the world,” Amazon founder Jeff Bezos said in a statement.

Amazon noted that it “will need multiple launch vehicles and launch partners” to deploy Kuiper satellites on time leaving the door open for future deals with the likes of Elon Musk’s SpaceX, Bezos’ space company Blue Origin, or European launcher Arianespace.

Offline M.E.T.

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Re: Amazon Project Kuiper Broadband Constellation
« Reply #172 on: 04/19/2021 04:37 pm »
Wow, that’s going to cost a bit

https://www.cnbc.com/2021/04/19/amazon-signs-ula-rockets-to-launch-bezos-kuiper-internet-satellites.html

Quote
Amazon signs with ULA for rockets to launch Jeff Bezos’ Kuiper internet satellites
PUBLISHED MON, APR 19 202112:01 PM EDT
Michael Sheetz
@THESHEETZTWEETZ

KEY POINTS
Amazon signed a contract for nine launches of its Project Kuiper internet satellites on United Launch Alliance’s Atlas V rockets.

“We’re determined to make affordable broadband a reality for customers and communities around the world,” Amazon founder Jeff Bezos said in a statement.

Amazon noted that it “will need multiple launch vehicles and launch partners” to deploy Kuiper satellites on time leaving the door open for future deals with the likes of Elon Musk’s SpaceX, Bezos’ space company Blue Origin, or European launcher Arianespace.

What’s that, $100m per launch? Lifting what - maybe 30-40 Kuiper satellites each?

Offline GWH

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Re: Amazon Project Kuiper Broadband Constellation
« Reply #173 on: 04/19/2021 04:48 pm »
What’s that, $100m per launch? Lifting what - maybe 30-40 Kuiper satellites each?

The press release shows an Atlas V 551.

The commercial price* (GTO only but can assume the same for bulk buy LEO missions) on an Atlas V 551 was $153 million. Max capacity to LEO is 18,850 kg.

Comparatively Vulcan is supposed to be much less expensive for the base core and could fly the same mission with only 2 solids. Amazon is paying for the much more expensive 5 meter fairing that wraps around Centaur 4 & 3 extra solids than they would be for Vulcan, NEVERMIND what was supposed to be the less expensive to manufacture core and 1st stage engines. That 5m fairing is expensive, there is an $11 million difference between Atlas V 401 and 501 in ULA's pricing.

*Pricing has been removed from ULA's rocket builder.

Offline M.E.T.

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Re: Amazon Project Kuiper Broadband Constellation
« Reply #174 on: 04/19/2021 04:53 pm »
What’s that, $100m per launch? Lifting what - maybe 30-40 Kuiper satellites each?

The press release shows an Atlas V 551.

The commercial price* (GTO only but can assume the same for bulk buy LEO missions) on an Atlas V 551 was $153 million. Max capacity to LEO is 18,850 kg.

Comparatively Vulcan is supposed to be much less expensive for the base core and could fly the same mission with only 2 solids. Amazon is paying for the much more expensive 5 meter fairing that wraps around Centaur 4 & 3 extra solids than they would be for Vulcan, NEVERMIND what was supposed to be the less expensive to manufacture core and 1st stage engines. That 5m fairing is expensive, there is an $11 million difference between Atlas V 401 and 501 in ULA's pricing.

*Pricing has been removed from ULA's rocket builder.

So assuming 60 Kuiper sats for $150m, that’s $2.5m launch cost per sat. Interesting. Let your mind make whatever comparisons one might deem appropriate at this point.

Offline b0objunior

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Re: Amazon Project Kuiper Broadband Constellation
« Reply #175 on: 04/19/2021 05:04 pm »
What’s that, $100m per launch? Lifting what - maybe 30-40 Kuiper satellites each?

The press release shows an Atlas V 551.

The commercial price* (GTO only but can assume the same for bulk buy LEO missions) on an Atlas V 551 was $153 million. Max capacity to LEO is 18,850 kg.

Comparatively Vulcan is supposed to be much less expensive for the base core and could fly the same mission with only 2 solids. Amazon is paying for the much more expensive 5 meter fairing that wraps around Centaur 4 & 3 extra solids than they would be for Vulcan, NEVERMIND what was supposed to be the less expensive to manufacture core and 1st stage engines. That 5m fairing is expensive, there is an $11 million difference between Atlas V 401 and 501 in ULA's pricing.

*Pricing has been removed from ULA's rocket builder.

So assuming 60 Kuiper sats for $150m, that’s $2.5m launch cost per sat. Interesting. Let your mind make whatever comparisons one might deem appropriate at this point.
These are the last Atlas V that needed to go, a discount is not out of the question to get rid of them as fast as possible to make space for Vulcan and discontinu that assembly line (to lower operating cost).

Offline yokem55

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Re: Amazon Project Kuiper Broadband Constellation
« Reply #176 on: 04/19/2021 05:09 pm »


These are the last Atlas V that needed to go, a discount is not out of the question to get rid of them as fast as possible to make space for Vulcan and discontinu that assembly line (to lower operating cost).

Atlas is on the hook for Starliner Flights for at least several more years.

Re: Amazon Project Kuiper Broadband Constellation
« Reply #177 on: 04/19/2021 05:10 pm »
These are the last Atlas V that needed to go, a discount is not out of the question to get rid of them as fast as possible to make space for Vulcan and discontinu that assembly line (to lower operating cost).

Atlas is on the hook for Starliner Flights for at least several more years.

Yeah, but all those boosters are already sold, aren't they?
Wait, ∆V? This site will accept the ∆ symbol? How many times have I written out the word "delta" for no reason?

Offline Craftyatom

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Re: Amazon Project Kuiper Broadband Constellation
« Reply #178 on: 04/19/2021 05:57 pm »
https://www.cnbc.com/2021/04/19/amazon-signs-ula-rockets-to-launch-bezos-kuiper-internet-satellites.html

Quote
Amazon signs with ULA for rockets to launch Jeff Bezos’ Kuiper internet satellites
PUBLISHED MON, APR 19 202112:01 PM EDT
Michael Sheetz
@THESHEETZTWEETZ

KEY POINTS
Amazon signed a contract for nine launches of its Project Kuiper internet satellites on United Launch Alliance’s Atlas V rockets.

“We’re determined to make affordable broadband a reality for customers and communities around the world,” Amazon founder Jeff Bezos said in a statement.

Amazon noted that it “will need multiple launch vehicles and launch partners” to deploy Kuiper satellites on time leaving the door open for future deals with the likes of Elon Musk’s SpaceX, Bezos’ space company Blue Origin, or European launcher Arianespace.
Seems like a move designed to get launching quickly.  The Atlas V is flying now and has available capacity.  New Glenn will take at least a year to fly, and likely longer to reach high cadence.  Vulcan is a bit closer, but its cadence is more of an unknown.  Falcon 9 is already flying as often as possible - they seem willing to delay Starlink launches to support other customers, but Amazon may be wary.

It's worth remembering that "Amazon has until July 30, 2026, to launch at least 50% of its satellites in order to maintain its authorization, and until July 30, 2029, to orbit the full constellation."(SpaceNews)   Given a full constellation of 3236 satellites, that's about 320 satellites per year for the next 5 years, and 600 per year for 3 years after that.

If the first New Glenn launches Q4 2022, it has about 3.5 years until that halfway deadline.  The comparison isn't perfect, but Falcon 9 (the most-launched orbital rocket in the world last year) launched 7 times in its first 3.5 years of service.  Blue already has multiple launch contracts on hand, including 5 for OneWeb and "multiple" for Telesat.  Despite having more than twice as much payload to LEO per launch as the Atlas V, it may not have enough capacity to get Kuiper to the halfway mark in time.  Likewise, although Vulcan is relatively cheap and interested in early customers, it will take a while to spool up.  Atlas V may be an important part of getting to the halfway point by mid-2026, though I would bet that the second half of the constellation will rely heavily on Vulcan and New Glenn.
All aboard the HSF hype train!  Choo Choo!

Online abaddon

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Re: Amazon Project Kuiper Broadband Constellation
« Reply #179 on: 04/19/2021 06:13 pm »
Maybe this thread should be in Commercial instead of the Blue section?

Also, wonder if this is a sign that Vulcan is coming in a little more expensive than ULA was hoping.  Seems like the Atlas V is going to be quite busy into the future.

Tags: kuiper 
 

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