Author Topic: Orbital Cygnus ORB-D RNDZ, BERTHING (ATTEMPT 2) And BERTHED UPDATES  (Read 79504 times)

Online Chris Bergin

LIVE RNDZ and BERTHING thread for Cygnus on the ORB-D mission.

==

FOR THE SPECIFIC DISCUSSION (NOT UPDATES), SEE THIS THREAD:
http://forum.nasaspaceflight.com/index.php?topic=31845.0

Please note the difference between this update thread and the discussion thread.

For everything else, here's the Party Thread
http://forum.nasaspaceflight.com/index.php?topic=32875.0

Resources:

Orbital GENERAL Forum Section:
http://forum.nasaspaceflight.com/index.php?board=46.0

Orbital (Antares/Cygnus) News Articles:
http://www.nasaspaceflight.com/tag/orbital/

Recent:
Preview Article:
http://www.nasaspaceflight.com/2013/09/antares-rolled-wallops-pad-ahead-orb-d-mission/

Launch Day Article:
http://www.nasaspaceflight.com/2013/09/orbitals-antares-loft-cygnus-debut-mission-iss/

On Orbit Article:
http://www.nasaspaceflight.com/2013/09/as-cygnus-heads-iss-orbital-eyeing-future/

RNDZ and Berthing Attempt 1 Article:
http://www.nasaspaceflight.com/2013/09/cygnus-cots-graduation-iss-berthing/

GPS Overview and Green Light for Attempt 2 Article:
http://www.nasaspaceflight.com/2013/09/green-light-cygnus-re-approach-iss-sunday-berthing/

Berthing Day Attempt 2 Article:
http://www.nasaspaceflight.com/2013/09/cygnus-second-attempt-berth-iss/

==

L2 Antares/Cygnus Section - Really good section with a lot of resources exclusive to L2:
http://forum.nasaspaceflight.com/index.php?board=54.0
FOR THIS LAUNCH, USE THIS ONE-STOP L2 LINK:
http://forum.nasaspaceflight.com/index.php?topic=32874.0
(Includes updates, videos, graphics, presentations, photos and specific interactive posts. Will be a "L2 SpaceX Standalone Section for future missions).

As always, stay on topic and use the correct threads. This one is for updates only!

GOOD LUCK CYGNUS!!

Offline Orbiter

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Cady Coleman ‏@Astro_Cady 39m
Woo Hoo!  @OrbitalSciences #Cygnus is another big step closer to the #ISS!  Just 200km away!  Capture is Sunday at 0715 EST. Stay tuned!
Attended space missions: STS-114, STS-124, STS-128, STS-135, Atlas V "Curiosity", Delta IV Heavy NROL-15, Atlas V MUOS-2, Delta IV Heavy NROL-37, SpaceX CRS-9, SpaceX JCSAT-16, Atlas V GOES-R, SpaceX SES-11.

Offline sdsds

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Orbital Sciences ‏@OrbitalSciences 3m
#Cygnus spacecraft performing well. On track for rendezvous and capture tomorrow a.m. Currently 198 km behind #ISS, closing at 25 kph
-- sdsds --

Online Chris Bergin

A revamped berthing day article, which had to keep some key information from last week's article. Will update this as we work through to what will hopefully be a successful.

http://www.nasaspaceflight.com/2013/09/cygnus-second-attempt-berth-iss/

Online Chris Bergin

Good news!

Orbital Sciences ‏@OrbitalSciences
The software "patch" that we uploaded to #Cygnus has worked. Good relative GPS solution established with #ISS.  #cotsdemo doing well.

Offline Targeteer

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The SSRMS is inspecting the Common berthing mechanism
Best quote heard during an inspection, "I was unaware that I was the only one who was aware."

Offline Targeteer

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inspection is complete
Best quote heard during an inspection, "I was unaware that I was the only one who was aware."

Online Robotbeat

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How far away is she right now?

How far away will she be 1 hour before capture?

EDIT:Crew is up right now.
« Last Edit: 09/29/2013 06:25 AM by Robotbeat »
Chris  Whoever loves correction loves knowledge, but he who hates reproof is stupid.

To the maximum extent practicable, the Federal Government shall plan missions to accommodate the space transportation services capabilities of United States commercial providers. US law http://goo.gl/YZYNt0

Offline psloss

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Karen Nyberg just called down a good morning and CapCom (sounds like Cady Coleman to me) says everything looks good, on track for capture.  Nyberg said they'll talk again in about an hour and a half.
« Last Edit: 09/29/2013 06:29 AM by psloss »

Online dsmillman

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MCC-H just told Karen Nyberg that everything is looking good and they are on track for capture this morning.  They will speak again during the morning DPC.
« Last Edit: 09/29/2013 06:30 AM by dsmillman »

Offline psloss

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How far away is she right now?

How far away will she be 1 hour before capture?

EDIT:Crew is up right now.
Yeah, I think the crew is still in "post-sleep" until around 0800 GMT.  (Rendezvous ops is still more of a ground show for a while.)  I'm not aware of an up-to-date detailed rendezvous timeline, but eyeballing an old one from L2 -- and making the leap that it's still valid -- it looks like Joint OPS would be starting some time around now.

If that's the case, the spacecraft should be on the 4 km 'racetrack' below Station, still a ways from the next demos and the ADV1 burn.

As with the other visiting vehicles on their first rendezvous (well, the non-grandfathered ones) there's a long series of maneuvers prior to a go for capture, so an hour prior to that the spacecraft should be moving up the R-bar.
« Last Edit: 09/29/2013 06:38 AM by psloss »

Online Robotbeat

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I just want to know because there's an ISS pass about an hour before capture in Minnesota, I want to know if I have any chance of picking out Cygnus.
Chris  Whoever loves correction loves knowledge, but he who hates reproof is stupid.

To the maximum extent practicable, the Federal Government shall plan missions to accommodate the space transportation services capabilities of United States commercial providers. US law http://goo.gl/YZYNt0

Offline psloss

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Morning DPC started...Cygnus about 7 km behind and a few minutes from ADV-2 burn (which would establish the 1.4 km 'racetrack' below Station).

(While continuing with DPC, Cady Coleman noted that the ADV-2 burn was in progress...may be complete before the end of the Houston part of the DPC.)
« Last Edit: 09/29/2013 07:54 AM by psloss »

Online dsmillman

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ADV-2 burn underway.

Offline psloss

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Sounds like it was only Houston for the DPC...maneuvering to capture attitude early (no exercise beginning at 0808 GMT) and another note that the current predicted capture time would be 2 seconds before sunset, so there were extra notes for lighting conditions.  (This might become somewhat moot if things run a little long...)
« Last Edit: 09/29/2013 08:04 AM by psloss »

Offline Targeteer

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strobe lights commanded to on
Best quote heard during an inspection, "I was unaware that I was the only one who was aware."

Offline StarryKnight

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Robotbeat,

I can't tell you exactly because, as pointed out above, there's a series of maneuvers in which the spacecraft holds at a position, retreats, advances that occur several times within the last few hours of the rendezvous.  These are for this first rendezvous/capture sequence only. Future missions will not do all these back and forth motions.

Cygnus reaches at the 250 meter hold point about two hours before. It gets closer and further away several times after that. The 30 meter hold position is reached about 45 minutes before capture.
In satellite operations, schedules are governed by the laws of physics and bounded by the limits of technology.

Online dsmillman

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Offline Garrett

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NASA TV coverage should be starting in 10 minutes (4:30am EDT)
- "Nothing shocks me. I'm a scientist." - Indiana Jones

Offline psloss

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Orbital just Tweeted that the ADV-3/Approach Initiation (AI) burn is coming up at 34 minutes past the hour.
https://twitter.com/OrbitalSciences/status/384231980285837312

(And Cady Coleman in Houston called that up to the crew shortly thereafter.)
« Last Edit: 09/29/2013 08:28 AM by psloss »

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