We've completed the platform commissioning of the #GHALIB satellite, a 2U built, designed and integrated by us, and our customer Marshall Intech has supplied the #RadioFrequency payload. We're now ready to support payload commissioning operations! #CubeSats #pioneerforchange
LINCS A/B were deployed from the Surfboard. They are alive but tumbling, activities underway to try and recover them. Mandrake sats are doing good so far, as is the SDA payload on YAM-3. (from Space Symposium press briefing)(Surfboard deployments don't seem to have a great success rate on these missions for some reason)
SDA said in a statement Feb. 4 that there were “challenges communicating with the LINCS sats. However, SDA is still working in partnership with the performer General Atomics on the way ahead.”[...]Gregg Burgess, vice president of space systems at General Atomics, said a problem occurred at launch. “Unfortunately, there was an issue with the launch vehicle,” Burgess said on a Mitchell Institute for Aerospace Studies podcast that aired Feb. 5.
Quote from: gongora on 08/24/2021 07:57 pmLINCS A/B were deployed from the Surfboard. They are alive but tumbling, activities underway to try and recover them. Mandrake sats are doing good so far, as is the SDA payload on YAM-3. (from Space Symposium press briefing)(Surfboard deployments don't seem to have a great success rate on these missions for some reason)Space Development Agency, General Atomics eye options after setback in laser comms experimentQuote from: SpaceNewsSDA said in a statement Feb. 4 that there were “challenges communicating with the LINCS sats. However, SDA is still working in partnership with the performer General Atomics on the way ahead.”[...]Gregg Burgess, vice president of space systems at General Atomics, said a problem occurred at launch. “Unfortunately, there was an issue with the launch vehicle,” Burgess said on a Mitchell Institute for Aerospace Studies podcast that aired Feb. 5.I'm assuming "launch vehicle" in this case is the Surfboard aggregator rather than the Falcon 9, but that's just a guess.
Quote from: Craftyatom on 02/06/2022 10:48 pmQuote from: gongora on 08/24/2021 07:57 pmLINCS A/B were deployed from the Surfboard. They are alive but tumbling, activities underway to try and recover them. Mandrake sats are doing good so far, as is the SDA payload on YAM-3. (from Space Symposium press briefing)(Surfboard deployments don't seem to have a great success rate on these missions for some reason.Space Development Agency, General Atomics eye options after setback in laser comms experimentQuote from: SpaceNewsSDA said in a statement Feb. 4 that there were “challenges communicating with the LINCS sats. However, SDA is still working in partnership with the performer General Atomics on the way ahead.”[...]Gregg Burgess, vice president of space systems at General Atomics, said a problem occurred at launch. “Unfortunately, there was an issue with the launch vehicle,” Burgess said on a Mitchell Institute for Aerospace Studies podcast that aired Feb. 5.I'm assuming "launch vehicle" in this case is the Surfboard aggregator rather than the Falcon 9, but that's just a guess.Launch vehicle is Falcon 9. He could be referring to the issue with the high helium concentration for payloads mounted in that area, which some of the passengers don't seem to have realized would be a problem until it was too late.
Quote from: gongora on 08/24/2021 07:57 pmLINCS A/B were deployed from the Surfboard. They are alive but tumbling, activities underway to try and recover them. Mandrake sats are doing good so far, as is the SDA payload on YAM-3. (from Space Symposium press briefing)(Surfboard deployments don't seem to have a great success rate on these missions for some reason.Space Development Agency, General Atomics eye options after setback in laser comms experimentQuote from: SpaceNewsSDA said in a statement Feb. 4 that there were “challenges communicating with the LINCS sats. However, SDA is still working in partnership with the performer General Atomics on the way ahead.”[...]Gregg Burgess, vice president of space systems at General Atomics, said a problem occurred at launch. “Unfortunately, there was an issue with the launch vehicle,” Burgess said on a Mitchell Institute for Aerospace Studies podcast that aired Feb. 5.I'm assuming "launch vehicle" in this case is the Surfboard aggregator rather than the Falcon 9, but that's just a guess.
LINCS A/B were deployed from the Surfboard. They are alive but tumbling, activities underway to try and recover them. Mandrake sats are doing good so far, as is the SDA payload on YAM-3. (from Space Symposium press briefing)(Surfboard deployments don't seem to have a great success rate on these missions for some reason.
Quote from: gongora on 10/11/2021 09:23 pmApparently some sensors and materials are sensitive to helium in particular. It was noted by some people at the symposium that MEMS sensors can be a problem with helium, and other materials could change properties if saturated with helium.MEMS oscillators in particular are affected by helium: There was a case of a bunch of iPhones in a hospital shutting down when an MRI magnet was cooled down with liquid helium.
Apparently some sensors and materials are sensitive to helium in particular. It was noted by some people at the symposium that MEMS sensors can be a problem with helium, and other materials could change properties if saturated with helium.
During the initial portion of this period, Spaceflight actively lowered the altitude of the spacecraft from its deployment altitude of ~522 km to ~445 km and also engaged with NASA to physically coordinate the transit of the Sherpa-LTE1 through the ISS orbit. Spaceflight learned that actively transiting through the ISS orbit would be more complicated and demanding than Spaceflight had anticipated, and Spaceflight would not have on call sufficient operational resources during the transit period to meet NASA standards.As a result, and consistent with NASA recommendations, Spaceflight has decided not to actively de-orbit Sherpa-LTE1 through the ISS orbit. Instead, the company will allow the spacecraft to passively de-orbit through the ISS orbit down to approximately 410 km....Once at the 410 km orbital altitude, Spaceflight will commence actively de-orbiting the Sherpa-LTE1 in coordination with NASA.
