Author Topic: LIVE: Cygnus OA-9 - Arrival, ISS mission and EOM - Updates  (Read 13493 times)

Online Comga

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Re: LIVE: Cygnus OA-9 - Arrival, ISS mission and EOM - Updates
« Reply #60 on: 07/12/2018 04:16 AM »
I ran across this document relating to the cubesat deployments happening after OA-9 leaves the station.

That document is an impressive find, but frankly, I would be shocked if this alone was deemed sufficient for each of the partners to sign off on the safety of deploying satellites at altitudes above the ISS. These criteria, established for jettisoning hardware, seems totally inappropriate. I’ve done some calculations of orbital motion and decay. There are dangers and ways to control them but they aren’t things put on a “jettison” form.
What kind of wastrels would dump a perfectly good booster in the ocean after just one use?

Offline jacqmans

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Re: LIVE: Cygnus OA-9 - Arrival, ISS mission and EOM - Updates
« Reply #61 on: 07/12/2018 06:26 AM »
July 11, 2018
MEDIA ADVISORY M18-104

Coverage Set for Departure of US Cargo Ship from International Space Station

Nearly two months after Orbital ATK, now part of Northrop Grumman, delivered several tons of supplies and scientific experiments to the International Space Station aboard its Cygnus cargo spacecraft, the spacecraft is set to depart the orbiting laboratory Sunday, July 15. Live coverage of unberthing and release will air on NASA Television and the agency’s website.

Expedition 56 Flight Engineers Alexander Gerst of ESA (European Space Agency) and Serena Auñón-Chancellor of NASA will use the station’s Canadarm2 robotic arm to release Cygnus, dubbed the SS “J.R. Thompson,” after a leader in the aerospace industry. Live coverage will begin at 8:15 a.m. EDT for a scheduled release at 8:35 a.m.

Following its release, Cygnus will deploy a series of NanoRacks customer CubeSats. The cargo craft will then remain in orbit for an additional two weeks to allow the Cygnus flight control team to conduct engineering tests. The satellite deployment will not be broadcast on NASA TV.

Cygnus is scheduled to deorbit with thousands of pounds of trash on Monday, July 30, as it burns up harmlessly over the Pacific Ocean while entering Earth’s atmosphere. The spacecraft’s deorbit will not be broadcast on NASA TV.
Cygnus launched May 21 on an Antares rocket from NASA’s Wallops Flight Facility in Virginia and arrived at the station on May 24, carrying a variety of science and technology investigations.

Keep up with the International Space Station and its research and crew at:

https://www.nasa.gov/station

Get breaking news, images and features from the space station on social media at:

https://instagram.com/iss

and

https://www.twitter.com/Space_Station

Offline centaurinasa

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Re: LIVE: Cygnus OA-9 - Arrival, ISS mission and EOM - Updates
« Reply #62 on: 07/12/2018 11:00 AM »
It seems that, Cygnus grapple or Release OBT, today …

Offline Olaf

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Re: LIVE: Cygnus OA-9 - Arrival, ISS mission and EOM - Updates
« Reply #63 on: 07/13/2018 03:01 PM »
http://nanoracks.com/14th-cubesat-deployment-from-iss/
Quote
The CubeSats mounted externally to the Cygnus spacecraft from the May 2018 launch are scheduled to be deployed on Sunday, July 15th, pending nominal operations.

Offline centaurinasa

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Re: LIVE: Cygnus OA-9 - Arrival, ISS mission and EOM - Updates
« Reply #64 on: 07/15/2018 06:56 AM »
Cygnus is already grappled by the SSRMS.

Offline centaurinasa

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Re: LIVE: Cygnus OA-9 - Arrival, ISS mission and EOM - Updates
« Reply #65 on: 07/15/2018 07:00 AM »
NASA TV Live coverage of Cygnus CRS-9 departure, will begin at 12.15 UTC, for a scheduled release at 12.35 UTC.
« Last Edit: 07/15/2018 08:29 AM by centaurinasa »

Offline centaurinasa

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Re: LIVE: Cygnus OA-9 - Arrival, ISS mission and EOM - Updates
« Reply #66 on: 07/15/2018 08:28 AM »
« Last Edit: 07/15/2018 08:35 AM by centaurinasa »

Offline centaurinasa

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Re: LIVE: Cygnus OA-9 - Arrival, ISS mission and EOM - Updates
« Reply #67 on: 07/15/2018 09:35 AM »
Vestibule depress underway….

Offline centaurinasa

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Re: LIVE: Cygnus OA-9 - Arrival, ISS mission and EOM - Updates
« Reply #68 on: 07/15/2018 09:44 AM »
Vestibule depress & leak check complete.
« Last Edit: 07/15/2018 09:56 AM by centaurinasa »

Offline centaurinasa

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Re: LIVE: Cygnus OA-9 - Arrival, ISS mission and EOM - Updates
« Reply #69 on: 07/15/2018 10:25 AM »
The unberthing procedures start by the retraction of 16 bolts and opening four capture latches to demate Cygnus from Unity and transfer control of the spacecraft to SSRMS.

Offline centaurinasa

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Re: LIVE: Cygnus OA-9 - Arrival, ISS mission and EOM - Updates
« Reply #70 on: 07/15/2018 10:28 AM »
At MCC-H, ROBO controllers command the arm into motion starting with a slow back-out from the Unity CBM
« Last Edit: 07/15/2018 10:29 AM by centaurinasa »

Offline centaurinasa

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Re: LIVE: Cygnus OA-9 - Arrival, ISS mission and EOM - Updates
« Reply #71 on: 07/15/2018 10:36 AM »
Then, the SSRMS slowly move Cygnus to its release position, around 12 meters from the ISS's modules...
« Last Edit: 07/15/2018 11:08 AM by centaurinasa »

Offline centaurinasa

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Re: LIVE: Cygnus OA-9 - Arrival, ISS mission and EOM - Updates
« Reply #72 on: 07/15/2018 11:14 AM »
Now in release position, Cygnus wait for its departure time while the crew configure the RWS "robotics workstation" in the Cupola.
« Last Edit: 07/15/2018 11:39 AM by centaurinasa »

Offline centaurinasa

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Re: LIVE: Cygnus OA-9 - Arrival, ISS mission and EOM - Updates
« Reply #73 on: 07/15/2018 11:54 AM »
Alex: "We are ready in the Cupola, for Cygnus release"

Offline Chris Bergin

NASA TV ramping up:

Offline centaurinasa

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Re: LIVE: Cygnus OA-9 - Arrival, ISS mission and EOM - Updates
« Reply #75 on: 07/15/2018 12:16 PM »
Gary Jordan is our today's PAO...

Offline centaurinasa

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Re: LIVE: Cygnus OA-9 - Arrival, ISS mission and EOM - Updates
« Reply #76 on: 07/15/2018 12:17 PM »

Offline Chris Bergin


Offline centaurinasa

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Re: LIVE: Cygnus OA-9 - Arrival, ISS mission and EOM - Updates
« Reply #78 on: 07/15/2018 12:20 PM »
RWS screen

Offline centaurinasa

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Re: LIVE: Cygnus OA-9 - Arrival, ISS mission and EOM - Updates
« Reply #79 on: 07/15/2018 12:20 PM »
Flight director & Capcoms...

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