Spaceflight also wishes to call the Bureau’s attention to the fact that its updatedmanifest now shows only 74 spacecraft to be deployed by the SSO-A, instead of the 114spacecraft that were originally scheduled for this mission. The possibility that some spacecraftmight not be ready for the mission and that the total number of spacecraft to be deployedmight be reduced was noted in the Application. It is possible that this number between nowand launch will be further reduced. The number of spacecraft to be deployed will not beincreased.
Looks like ORS-6 (COVWR), COPPER2, Myriota, and some of the Doves need to be removed from my existing list. 26 new customers to add, including a duo and a trio of US Government cubesats (I'm assuming the other duo is still ORS-7). I'll try to look them up over the next few days. There are now 15 microsatellites and 59 cubesats.
gongora, could please add a link to the source of the file (if available)? I want to link it to reddit but don't want to add unnecessary load to the NSF servers
SSO-A Payload ManifestMyriota (3U IOT Cubesat from Australia)
ORS-6 cancelled:http://space.skyrocket.de/doc_sdat/ors-6.htm
Quote from: Salo on 07/30/2018 08:53 amORS-6 cancelled:http://space.skyrocket.de/doc_sdat/ors-6.htmThat would be why ORS-6 got dropped from the manifest.http://www.defensedaily.com/air-force-studying-alternatives-troubled-ors-6-satellite/
W 2016 roku podpisano kontrakt na wyniesienie PW-Sata2 na orbitę na pokładzie rakiety Falcon 9, której start przewidywany jest na późną jesień 2018 r. Na przełomie 2017 i 2018 roku satelita PW-Sat2 przeszedł niezbędne testy przed wyniesieniem w kosmos i wiosną tego roku był już gotowy do startu.PW-Sat2 zostanie wyniesiony na pokładzie rakiety Falcon 9 wraz z misją SSO-A z bazy Vandenberg w Kalifornii. Według najnowszych danych wraz z PW-Satem2 w kosmos zostanie wyniesionych ponad 70 innych satelitów – przede wszystkim CubeSatów. Start rakiety planowany jest aktualnie na listopad 2018 roku, jednak termin ten może ulec zmianie.
Astro Digital anticipates the launch of a 30-satellite constellation consisting of 10 broad-area coverage (BC) spacecraft (identified as CORVUS-BC type), having a ground sampling distance (GSD) resolution of 22 meters and 20 high definition (HD) spacecraft (identified as CORVUS-HD type), having a GSD resolution of 2.5 meters. Both satellite types, forming the whole Landmapper system, will use the same nominal orbit set.
A company statement said only that the launch was scheduled for later this year, but Blake said Spaceflight expects the SSO-A mission to launch in the fourth quarter. “We don’t have an exact date yet, but we’re definitely in the fall,” he said. One source with a payload on the mission said they’ve been told to plan for a mid-November launch....That mission [SSO-A] was delayed by a year because of other delays in the SpaceX launch manifest. Blake said the company was open to doing similar missions in the future, but wanted to wait until after the SSO-A mission launched before making plans. “I think there’s definitely a chance of us doing more, like an SSO-B and an SSO-C and the like,” he said.Future dedicated rideshare missions, though, might use smaller medium-class launch vehicles, such as Arianespace’s Vega or India’s Polar Satellite Launch Vehicle. “They’re easier to fill, certainly,” he said. “At the various different price points, it makes it easier to get a mission together.”
Loving the mini-TESS (it's an exact copy) in the top of the part still attached to the second stage. They probably didn't have a picture of that satellite...
Quote from: soltasto on 08/06/2018 09:15 pmLoving the mini-TESS (it's an exact copy) in the top of the part still attached to the second stage. They probably didn't have a picture of that satellite...These are all generic satellites in this illustration - definitely not those on the SSO-A mission
Re: Spaceflight, Inc., (“Spaceflight”) Request for Special Temporary Authority to Deploy and Operate itsSSO-A Spacecraft FCC File No. SAT-STA-20180523-00042 (“Application”)In the above referenced application, Spaceflight stated that the DeOrbitSail device that itplanned to use was similar to a device which was successfully operated in low earth orbit on a previousflight, but that the sail material was to be replaced with one more resilient to degradation fromexposure to atomic oxygen. Spaceflight also noted that the new device would be subject to additionaltesting to assure its successful operation in space.Based on recent cold-temperature deployment testing, Spaceflight has determined to changethe DeOrbitSail material from BSF-30 to Aluminized Kapton, which is the same material used on thepreviously successful mission. The cold-temperature deployment testing demonstrated that the BSF-30sail material was too stiff to deploy reliably. Now, Aluminized Kapton, the same sail material used onprevious deorbit devices made by Surrey Space Center, will be utilized for SSO-A DeOrbitSail system.The Aluminized Kapton passed all functional testing, but this material is more susceptible to theeffects of atomic oxygen erosion over time. To address this concern, four different configurations wereanalyzed: two free-flyers (Both the Upper Free Flyer “UFF” and Lower Free Flyer “LFF”); no spacecraftdeployments (“mission failure”) and all spacecraft deployments for each. Each of those fourconfigurations had three scenarios that were analyzed: no DeOrbitSail erosion (base line scenario),DeOrbitSail disintegration at the erosion rate determined by the manufacturer, Surrey Space Center,and the atomic oxygen environment (the expected operation), and a bounding case where theDeOrbitSail experiences 10 times that erosion rate (not expected; for sensitivity analysis only). Theexpected operation shows that, when compared with Spaceflight’s original analysis (based on the use ofthe BSF-30 material), the deorbit time for the UFF is likely to increase by a few years, while the LFF willincrease by several months. All scenarios show compliance with the 25-year reentry requirement,including the 10 times erosion rate scenario.
On the launch date, SkySat-14 and SkySat-15 will be released by the launch vehicle in a clusterthat is so closely spaced that ordinary telemetry transmissions from the different satellites—which willuse the same frequencies—would be indistinguishable at earth stations for the first few days on-orbit. Tofacilitate the identification and monitoring of each individual satellite, Terra Bella therefore requestsauthority to temporarily modify the telemetry downlink frequency (Channel ID TTC1) for each of thenew satellites to a frequency that is unique but close to the frequency authorized for operations under CallSign S2862. Without the requested temporary modification, both satellites could be transmitting at thesame time, on the same frequency, and thus interfering with each other.Specifically, Terra Bella requests authority to assign each of the two new satellites one of thefollowing frequencies for telemetry transmissions effective upon launch:● 8374.75 MHz● 8375.25 MHzEach of the proposed frequencies is within the 8025-8400 MHz band allocated to EESS, as well as within250 kHz of the telemetry downlink frequency of 8375.00 MHz currently authorized for Call Sign S2862.Assuming nominal conditions, after approximately 30 to 60 days, the satellite orbits will have divergedenough so that the earth stations are able to distinguish each individual satellite. At that time, the satelliteswill be commanded to transmit on the licensed frequency of 8375.00 MHz for permanent operations.
This fall, Trevor Paglen will launch a shiny sculpture into space, a reflective, nonfunctional satellite. The orbital artwork is meant to encourage viewers to reconsider their view of humanity and its place in the universe. A group of astronomers, however, has had a rather different reaction: They hate it.Specifically, critics have claimed that the piece will cause light pollution that could interfere with important astronomical observations.