Zuma didn't cost $3.5B. If it did, it would have gone up on another launcher. That's subterfuge to make folks think we won't build another. Or, if it did cost $3.5B, then that was the program cost and there's a warehouse somewhere with Zuma 2, Zuma 3, ... Zuma N sitting in it waiting for NG to fix its adapter problem.
According to Senator Kit Bond initial budget estimates for each of the two legacy KH-11 satellites ordered from Lockheed in 2005 were higher than for the latest Nimitz-class aircraft carrier (CVN-77)[14] with its projected procurement cost of US$6.35 billion as of May 2005.[71] In 2011, after the launch of USA-224, DNRO Bruce Carlson announced that the procurement cost for the satellite had been US$2 billion under the initial budget estimate, which would put it at about US$4.4 billion (inflation adjusted US$4.79 billion in 2017).[15]In April 2014, the NRO assigned a "(...) worth more than $5 billion (...)" to the final two legacy KH-11 satellites.[72]
Quote from: wolfpack on 04/10/2018 08:05 pmZuma didn't cost $3.5B. If it did, it would have gone up on another launcher. That's subterfuge to make folks think we won't build another. Or, if it did cost $3.5B, then that was the program cost and there's a warehouse somewhere with Zuma 2, Zuma 3, ... Zuma N sitting in it waiting for NG to fix its adapter problem.Going by the KH-11 that price seems entirely possible.Quote According to Senator Kit Bond initial budget estimates for each of the two legacy KH-11 satellites ordered from Lockheed in 2005 were higher than for the latest Nimitz-class aircraft carrier (CVN-77)[14] with its projected procurement cost of US$6.35 billion as of May 2005.[71] In 2011, after the launch of USA-224, DNRO Bruce Carlson announced that the procurement cost for the satellite had been US$2 billion under the initial budget estimate, which would put it at about US$4.4 billion (inflation adjusted US$4.79 billion in 2017).[15]In April 2014, the NRO assigned a "(...) worth more than $5 billion (...)" to the final two legacy KH-11 satellites.[72]https://en.m.wikipedia.org/wiki/KH-11_Kennen
Quote from: nacnud on 04/10/2018 05:29 pmI thought the Falcon 9 did use ethernet. I'll see what I can find.Edit:OK I can find reference to Falcon 1 using an ethernet bus but nothing definitive on Falcon 9.I also recall reading that SpaceX used Ethernet for their vehicles.
I thought the Falcon 9 did use ethernet. I'll see what I can find.Edit:OK I can find reference to Falcon 1 using an ethernet bus but nothing definitive on Falcon 9.
General Finding: SpaceX’s new implementation (for Falcon 9 “Full Thrust” flights) of non-deterministic network packets in their flight telemetry increases latency, directly resulting in substantial portions of the anomaly data being lost due to network buffering in the Stage 2 flight computer.
Quote from: Star One on 04/10/2018 08:13 pmQuote from: wolfpack on 04/10/2018 08:05 pmZuma didn't cost $3.5B. If it did, it would have gone up on another launcher. That's subterfuge to make folks think we won't build another. Or, if it did cost $3.5B, then that was the program cost and there's a warehouse somewhere with Zuma 2, Zuma 3, ... Zuma N sitting in it waiting for NG to fix its adapter problem.Going by the KH-11 that price seems entirely possible.Quote According to Senator Kit Bond initial budget estimates for each of the two legacy KH-11 satellites ordered from Lockheed in 2005 were higher than for the latest Nimitz-class aircraft carrier (CVN-77)[14] with its projected procurement cost of US$6.35 billion as of May 2005.[71] In 2011, after the launch of USA-224, DNRO Bruce Carlson announced that the procurement cost for the satellite had been US$2 billion under the initial budget estimate, which would put it at about US$4.4 billion (inflation adjusted US$4.79 billion in 2017).[15]In April 2014, the NRO assigned a "(...) worth more than $5 billion (...)" to the final two legacy KH-11 satellites.[72]https://en.m.wikipedia.org/wiki/KH-11_KennenThe problem is that the Falcon 9 isn't rated to carry that class of payloads yet.
Rated by who? Falcon 9 has launched a classified NRO payload. Why not this one?
NRO just released an ebook about all their mission patches from 1996 to 2021.See their tweet : https://twitter.com/NatReconOfc/status/1512169604466028551?cxt=HHwWjsC5pcqPp_wpAAAA
Quote from: Bean Kenobi on 04/08/2022 08:25 pmNRO just released an ebook about all their mission patches from 1996 to 2021.See their tweet :did anyone download this ebook and is willing to share it, the page it was posted to has since been removed
NRO just released an ebook about all their mission patches from 1996 to 2021.See their tweet :