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#200 by SciNews on 20 Nov, 2021 15:42
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Cygnus departure
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#201 by centaurinasa on 20 Nov, 2021 15:45
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#202 by Yellowstone10 on 20 Nov, 2021 15:46
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Via @Apaiss1 on Twitter - Cygnus NG-16 has also taken with it the STP-H6 payload (which was delivered by CRS-17 in May 2019 and mounted on ELC-3) for a destructive re-entry:
https://twitter.com/Apaiss1/status/1462089437001699341 -
#203 by centaurinasa on 20 Nov, 2021 15:53
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ISS configuration after Cygnus departure
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#204 by starbase on 20 Nov, 2021 15:54
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Does anyone have any info on CubeSats that should deploy from a SEOPS Slingshot mechanism before reentry according to sources below?
https://en.m.wikipedia.org/wiki/Cygnus_NG-16
https://www.n2yo.com/satellite/?s=49064
According to this info PIRPL will be also released before reentry (deorbit on Dec. 15): https://space.skyrocket.de/doc_sdat/pirpl.htm -
#205 by zubenelgenubi on 20 Nov, 2021 16:05
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Cross-post:
https://blogs.nasa.gov/spacestation/2021/11/20/cygnus-departs-station-ending-cargo-mission/
QuoteAt 11:01 a.m. EST, flight controllers on the ground sent commands to release the Northrop Grumman Cygnus spacecraft from the Canadarm2 robotic arm after earlier detaching Cygnus from the Earth-facing port of the Unity module. At the time of release, the station was flying about 260 miles over the South Pacific Ocean.
...
Cygnus will deorbit on Wednesday, Dec. 15, following a deorbit engine firing to set up a destructive re-entry in which the spacecraft, filled with waste the space station crew packed in the spacecraft, will burn up in Earth’s atmosphere. -
#206 by Rondaz on 20 Nov, 2021 17:30
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Cygnus Departs Station Ending Cargo Mission
Mark Garcia Posted on November 20, 2021
At 11:01 a.m. EST, flight controllers on the ground sent commands to release the Northrop Grumman Cygnus spacecraft from the Canadarm2 robotic arm after earlier detaching Cygnus from the Earth-facing port of the Unity module. At the time of release, the station was flying about 260 miles over the South Pacific Ocean.
The Cygnus spacecraft successfully departed the International Space Station more than three months after arriving at the space station to deliver about 8,000 pounds of scientific investigations and supplies to the orbiting laboratory.
After departure, the Kentucky Re-Entry Probe Experiment (KREPE) stowed inside Cygnus will take measurements to demonstrate a thermal protection system for spacecraft and their contents during re-entry in Earth’s atmosphere, which can be difficult to replicate in ground simulations.
Cygnus will deorbit on Wednesday, Dec. 15, following a deorbit engine firing to set up a destructive re-entry in which the spacecraft, filled with waste the space station crew packed in the spacecraft, will burn up in Earth’s atmosphere.
Cygnus arrived at the space station Aug. 12, following a launch two days prior on Northrop Grumman’s Antares rocket from NASA’s Wallops Flight Facility on Wallops Island, Virginia. It was the company’s 16th commercial resupply services mission to the space station for NASA. Northrop Grumman named the spacecraft after NASA astronaut Ellison Onizuka, the first Asian American astronaut.
For departure coverage and more information about the mission, visit: https://blogs.nasa.gov/spacestation/. Get space station news, images and features via social media at: @space_station and @ISS_Research on Twitter, as well as the ISS Facebook and ISS Instagram accounts.
https://blogs.nasa.gov/spacestation/2021/11/20/cygnus-departs-station-ending-cargo-mission/ -
#207 by Rondaz on 20 Nov, 2021 17:32
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Although Cygnus has left @Space_Station, its mission isn’t over yet. The spacecraft carries KREPE, which demonstrates an affordable thermal protection system to protect spacecraft and their contents during re-entry into Earth’s atmosphere.
https://twitter.com/ISS_Research/status/1462092144873816071 -
#208 by Rondaz on 22 Nov, 2021 15:17
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The S.S. Ellison Onizuka cargo ship, which departed the ISS yesterday, has raised its orbit to 456 x 464 km. It is expected to deploy some cubesats.
https://twitter.com/planet4589/status/1462560849516765187 -
#209 by Rondaz on 22 Nov, 2021 23:09
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Said goodbye to our Cygnus vehicle over the weekend. We used the @csa_asc robotic arm on @Space_Station to release it. @NASA_Astronauts recycle a lot on-orbit but we rely on the teams at @NASA_Johnson to get us additional supplies when we need them.
https://twitter.com/Astro_Raja/status/1462896126542155777 -
#210 by jcm on 23 Nov, 2021 00:10
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The S.S. Ellison Onizuka cargo ship, which departed the ISS yesterday, has raised its orbit to 456 x 464 km. It is expected to deploy some cubesats.
https://twitter.com/planet4589/status/1462560849516765187
Correction: no cubesats. It will release the PIRPL payload, and the KREPE reentry device will operate
during Cygnus breakup -
#211 by Rondaz on 15 Dec, 2021 11:45
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The Cygnus NG-16 cargo ship, S.S. Ellison Onizuka, departed the ISS on Nov 20 for a solo mission with the PIRPL infrared sensor. Latest TLEs show it still in a 456 x 465 km orbit, but it is expected to be deorbited sometime today, Dec 15.
https://twitter.com/planet4589/status/1470984855374778370 -
#212 by Rondaz on 16 Dec, 2021 18:15
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SCIENCE UPDATE: The KREPE capsules riding aboard the NG-16 Cygnus vehicle have successfully re-entered the atmosphere, separated from the host vehicle, jettisoned their protective shell, and gathered heat shield data which was received by the project team!
https://twitter.com/ISS_Research/status/1471558239489830914 -
#213 by Rondaz on 16 Dec, 2021 18:17
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KREPE's goal is to demonstrate an affordable thermal protection system to protect spacecraft and their contents during re-entry into Earth’s atmosphere. Better designs for heat shielding also have potential applications on Earth, such as for fires and volcanic disasters.
https://twitter.com/ISS_Research/status/1471558245718401030 -
#214 by Rondaz on 16 Dec, 2021 18:21
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Hmm, if I take the Cygnus NG16 end of life time and naively apply the last TLE and a small deorbit burn (so, assuming no intermediate orbit lowering) I infer NG-16 entry east of Japan rather than in the S Pacific. (But I don't place high confidence on this conclusion)
https://twitter.com/planet4589/status/1471538877546520576