Author Topic: LIVE: Orbital Cygnus ORB-D RNDZ and BERTHING (ATTEMPT 1) UPDATES  (Read 42859 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 Article:
http://www.nasaspaceflight.com/2013/09/cygnus-cots-graduation-iss-berthing/

==

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!!
« Last Edit: 09/28/2013 09:54 PM by Chris Bergin »

Online Chris Bergin

So we're on to the fourth in the immediate mission set of articles for ORB-D:
http://www.nasaspaceflight.com/2013/09/cygnus-cots-graduation-iss-berthing/

Please add NASA TV schedules into this thread....I can't seem to find it right now.

Online Chris Bergin

OK - NASA TV coverage begins at 3:30 am Central.

Offline AnalogMan

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Re: LIVE: Orbital Cygnus ORB-D RNDZ and BERTHING UPDATES
« Reply #3 on: 09/22/2013 01:13 AM »
NASA TV schedule (all times EDT)

September 21, Saturday

9 p.m. - Orbital Sciences/Cygnus Post-Launch News Conference - HQ (All Channels)

September 22, Sunday

4:30 a.m. - Rendezvous, Grapple and Berthing Coverage of the Orbital Sciences/Cygnus Spacecraft to the ISS (Grapple scheduled approximately 7:25 a.m. EDT) - JSC (All Channels)

1 p.m. - Orbital Sciences/Cygnus Post-Berthing News Conference - JSC/Dulles (All Channels)

http://www.nasa.gov/multimedia/nasatv/index.html

Offline Targeteer

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Re: LIVE: Orbital Cygnus ORB-D RNDZ and BERTHING UPDATES
« Reply #4 on: 09/22/2013 04:05 AM »
Range is under 100 km according to the cygnus mission viewer
« Last Edit: 09/22/2013 04:06 AM by Targeteer »
Best quote heard during an inspection, "I was unaware that I was the only one who was aware."

Offline Targeteer

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Re: LIVE: Orbital Cygnus ORB-D RNDZ and BERTHING UPDATES
« Reply #5 on: 09/22/2013 04:56 AM »
75 km
Best quote heard during an inspection, "I was unaware that I was the only one who was aware."

Offline Targeteer

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Re: LIVE: Orbital Cygnus ORB-D RNDZ and BERTHING UPDATES
« Reply #6 on: 09/22/2013 05:38 AM »
60 km
Best quote heard during an inspection, "I was unaware that I was the only one who was aware."

Offline Targeteer

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Re: LIVE: Orbital Cygnus ORB-D RNDZ and BERTHING UPDATES
« Reply #7 on: 09/22/2013 05:50 AM »
55 km
Best quote heard during an inspection, "I was unaware that I was the only one who was aware."

Offline Targeteer

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Re: LIVE: Orbital Cygnus ORB-D RNDZ and BERTHING UPDATES
« Reply #8 on: 09/22/2013 05:59 AM »
50 km
Best quote heard during an inspection, "I was unaware that I was the only one who was aware."

Offline Targeteer

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Re: LIVE: Orbital Cygnus ORB-D RNDZ and BERTHING UPDATES
« Reply #9 on: 09/22/2013 06:24 AM »
40 km
Best quote heard during an inspection, "I was unaware that I was the only one who was aware."

Offline Targeteer

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Re: LIVE: Orbital Cygnus ORB-D RNDZ and BERTHING UPDATES
« Reply #10 on: 09/22/2013 06:48 AM »
30 km
Best quote heard during an inspection, "I was unaware that I was the only one who was aware."

Offline Targeteer

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Re: LIVE: Orbital Cygnus ORB-D RNDZ and BERTHING UPDATES
« Reply #11 on: 09/22/2013 07:00 AM »
25 km
Best quote heard during an inspection, "I was unaware that I was the only one who was aware."

Offline Targeteer

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Re: LIVE: Orbital Cygnus ORB-D RNDZ and BERTHING UPDATES
« Reply #12 on: 09/22/2013 07:12 AM »
20 km, no word from the crew yet on a tally ho
Best quote heard during an inspection, "I was unaware that I was the only one who was aware."

Offline Targeteer

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Re: LIVE: Orbital Cygnus ORB-D RNDZ and BERTHING UPDATES
« Reply #13 on: 09/22/2013 07:27 AM »
15 km, the crew is up but have not responded to the first call from MCC-H of the morning
Best quote heard during an inspection, "I was unaware that I was the only one who was aware."

Offline Targeteer

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Re: LIVE: Orbital Cygnus ORB-D RNDZ and BERTHING UPDATES
« Reply #14 on: 09/22/2013 07:31 AM »
aborted rendezvous due to differential GPS problems
« Last Edit: 09/22/2013 07:31 AM by Targeteer »
Best quote heard during an inspection, "I was unaware that I was the only one who was aware."

Offline dsmillman

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Re: LIVE: Orbital Cygnus ORB-D RNDZ and BERTHING UPDATES
« Reply #15 on: 09/22/2013 07:32 AM »
ISS crewed just notified that Cygnus rendezvous aborted. No attempt until Tuesday.  Problem with GPS.
« Last Edit: 09/22/2013 07:34 AM by dsmillman »

Offline Targeteer

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Re: LIVE: Orbital Cygnus ORB-D RNDZ and BERTHING UPDATES
« Reply #16 on: 09/22/2013 07:48 AM »
crew was advised of closest approach on the R-bar which will be 4 km
Best quote heard during an inspection, "I was unaware that I was the only one who was aware."

Online Chris Bergin

Morning. Thanks for the early coverage guys - as much as I didn't expect some bad news already. We'll dig into what's gone wrong here.

Offline Targeteer

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Re: LIVE: Orbital Cygnus ORB-D RNDZ and BERTHING UPDATES
« Reply #18 on: 09/22/2013 07:58 AM »
Discussion between CAPCOM and Karen mentioned something about the two vehicles analyzing differential GPS differently/incompatibly if I recall correctly
« Last Edit: 09/22/2013 08:00 AM by Targeteer »
Best quote heard during an inspection, "I was unaware that I was the only one who was aware."

Offline psloss

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Re: LIVE: Orbital Cygnus ORB-D RNDZ and BERTHING UPDATES
« Reply #19 on: 09/22/2013 08:14 AM »
Not much to add, but we did get an email a few minutes ago saying that there would be a statement posted to the 'microsite' soon.  (http://www.orbital.com/Antares-Cygnus/)

(And just saw a Tweet went out from Orbital noting the 48-hr delay "due data link issue between the spacecraft and station during #cotsdemo".)
« Last Edit: 09/22/2013 08:18 AM by psloss »

Offline psloss

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Re: LIVE: Orbital Cygnus ORB-D RNDZ and BERTHING UPDATES
« Reply #20 on: 09/22/2013 08:25 AM »
Update posted:
http://www.orbital.com/Antares-Cygnus/

Excerpt:
Quote
This morning, at around 1:30 a.m. EDT, Cygnus established direct data contact with the ISS and found that some of the data received had values that it did not expect, causing Cygnus to reject the data. This mandated an interruption of the approach sequence. Orbital has subsequently found the causes of this discrepancy and is developing a software fix.
« Last Edit: 09/22/2013 08:26 AM by psloss »

Online Chris Bergin

Not sure if NASA TV will still go live in five mins - even if it's a short update now - or not at all.

Online Chris Bergin

And the answer to that is no, NASA TV coverage just running through with video file.

Looks hopeful on the software solution, so we'll keep this thread going until the next attempt.
http://www.nasaspaceflight.com/2013/09/cygnus-cots-graduation-iss-berthing/

Online Chris Bergin

NASA giving the ISS crew an off duty day. Cygnus on Tuesday and next crew preps Wednesday.

Offline psloss

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Re: LIVE: Orbital Cygnus ORB-D RNDZ and BERTHING UPDATES
« Reply #24 on: 09/22/2013 10:27 AM »
NASA giving the ISS crew an off duty day. Cygnus on Tuesday and next crew preps Wednesday.
Any word on what the last day to complete the rendezvous and berthing is before it would have to move to the other side of the Soyuz?

Offline psloss

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Re: LIVE: Orbital Cygnus ORB-D RNDZ and BERTHING UPDATES
« Reply #25 on: 09/22/2013 11:20 AM »
Any word on what the last day to complete the rendezvous and berthing is before it would have to move to the other side of the Soyuz?
Bill Harwood covered it in his story, it is Tuesday:
http://www.cbsnews.com/network/news/space/home/spacenews/files/19d48cee4ae3e104c7ebe24010a47ddc-626.html

(I forgot about the four-orbit Soyuz rendezvous.)
« Last Edit: 09/22/2013 11:21 AM by psloss »

Online Jarnis

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Re: LIVE: Orbital Cygnus ORB-D RNDZ and BERTHING UPDATES
« Reply #26 on: 09/22/2013 01:06 PM »
Quote
Following the discovery of a data format discrepancy between an on-board International Space Station (ISS) navigation system and a similar system on Cygnus at around 1:30 a.m. this morning, today's rendezvous with the station was postponed. At this time, NASA and Orbital are developing a detailed plan for a second rendezvous attempt early Tuesday morning.

A software update has been developed and will be tested on a ground-based simulator during the day on Sunday. Upload to Cygnus and in-orbit testing of the software "patch" is planned for Sunday night and into Monday morning. Once this has been accomplished and verified, the current plan is for Cygnus to begin a second rendezvous approach late Monday night, with final approach to the ISS and grapple taking place early Tuesday morning. The Cygnus spacecraft remains healthy, with all major subsystems operating as expected.

source: http://www.orbital.com/Antares-Cygnus/

Edit: source fixed some punctuation errors, so re-copypasted
« Last Edit: 09/22/2013 01:30 PM by Jarnis »

Offline Targeteer

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Re: LIVE: Orbital Cygnus ORB-D RNDZ and BERTHING UPDATES
« Reply #27 on: 09/22/2013 02:01 PM »
Karen is disassembling the HCP with MCC-H approval and returning it to the JEM. 
Best quote heard during an inspection, "I was unaware that I was the only one who was aware."

Offline Targeteer

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Re: LIVE: Orbital Cygnus ORB-D RNDZ and BERTHING UPDATES
« Reply #28 on: 09/22/2013 02:18 PM »
15 km, the crew is up but have not responded to the first call from MCC-H of the morning


This call turned out to be the rendezvous abort notification.  Interestingly, CAPCOM stated "no hurry, at your convenience." It was before the DPC which usually denotes the start of MCC interaction with the crew.
Best quote heard during an inspection, "I was unaware that I was the only one who was aware."

Offline Targeteer

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Re: LIVE: Orbital Cygnus ORB-D RNDZ and BERTHING UPDATES
« Reply #29 on: 09/22/2013 02:27 PM »
CAPCOM stated to Luca there will be an update on Cygnus status for the crew during the evening DPC.
Best quote heard during an inspection, "I was unaware that I was the only one who was aware."

Offline Lurker Steve

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Re: LIVE: Orbital Cygnus ORB-D RNDZ and BERTHING UPDATES
« Reply #30 on: 09/22/2013 02:59 PM »
Karen is disassembling the HCP with MCC-H approval and returning it to the JEM.

MCC is in Dulles, not Hawthorne, correct ??

Offline StarryKnight

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Re: LIVE: Orbital Cygnus ORB-D RNDZ and BERTHING UPDATES
« Reply #31 on: 09/22/2013 03:02 PM »
MCC-H = Houston (JSC)
MCC-D = Dulles
In satellite operations, schedules are governed by the laws of physics and bounded by the limits of technology.

Offline Targeteer

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Re: LIVE: Orbital Cygnus ORB-D RNDZ and BERTHING UPDATES
« Reply #32 on: 09/22/2013 04:51 PM »
http://cesium.agi.com/cygnus/

is NOT real time data--it currently shows Cygnus at 25 meters under ISS  :o
Best quote heard during an inspection, "I was unaware that I was the only one who was aware."

Online Silmfeanor

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Re: LIVE: Orbital Cygnus ORB-D RNDZ and BERTHING UPDATES
« Reply #33 on: 09/22/2013 04:57 PM »
http://cesium.agi.com/cygnus/

is NOT real time data--it currently shows Cygnus at 25 meters under ISS  :o

This was known all along. it runs on  "nominal mission data" - ie a set of perfectly executed manouvres right on time. The website does not, and never has, received real-time telemetry.
But if you want to continue this, better move to discussion thread instead of updates.

Offline rickl

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Re: LIVE: Orbital Cygnus ORB-D RNDZ and BERTHING UPDATES
« Reply #34 on: 09/22/2013 05:29 PM »

Heavens Above is now showing Cygnus ahead of the ISS.  Is it going to go around and catch up to it again?
The Space Age is just starting to get interesting.

Offline jcm

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Re: LIVE: Orbital Cygnus ORB-D RNDZ and BERTHING UPDATES
« Reply #35 on: 09/22/2013 05:36 PM »
My calculations suggest the 4 km flyby of ISS happened at 0845 UTC approximately.
-----------------------------

Jonathan McDowell
http://planet4589.org

Offline Orbiter

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Re: LIVE: Orbital Cygnus ORB-D RNDZ and BERTHING UPDATES
« Reply #36 on: 09/22/2013 05:39 PM »

Heavens Above is now showing Cygnus ahead of the ISS.  Is it going to go around and catch up to it again?


I'd imagine Cygnus will have to raise its altitude to allow the ISS to go ahead of it, then lower its altitude again to catch up on Tuesday.

http://cesium.agi.com/cygnus/

is NOT real time data--it currently shows Cygnus at 25 meters under ISS  :o

Still thinks grappling and berthing occurred as scheduled this morning.
« Last Edit: 09/22/2013 05:39 PM by Orbiter »
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, Falcon 9 CRS-9, Falcon 9 JCSAT-16, Atlas V GOES-R, Falcon 9 SES-11, Falcon Heavy Demo.

Offline dsmillman

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Re: LIVE: Orbital Cygnus ORB-D RNDZ and BERTHING UPDATES
« Reply #37 on: 09/22/2013 07:14 PM »
ISS crew was just told that MCC-H is still planning toward a Tuesday (9/24) rendezvous and berthing.  However, a Tuesday rendezvous is not definite yet.
« Last Edit: 09/22/2013 07:15 PM by dsmillman »

Offline Targeteer

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Re: LIVE: Orbital Cygnus ORB-D RNDZ and BERTHING UPDATES
« Reply #38 on: 09/22/2013 07:15 PM »
No confirmation of re-attempt on Tuesday yet from the DPC.
Best quote heard during an inspection, "I was unaware that I was the only one who was aware."

Offline Jim

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Re: LIVE: Orbital Cygnus ORB-D RNDZ and BERTHING UPDATES
« Reply #39 on: 09/22/2013 10:09 PM »
Karen is disassembling the HCP with MCC-H approval and returning it to the JEM.

MCC is in Dulles, not Hawthorne, correct ??

The facility in Hawthorne is MCC-X.  Sometimes they are a little too cute.

Offline psloss

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Re: LIVE: Orbital Cygnus ORB-D RNDZ and BERTHING UPDATES
« Reply #40 on: 09/22/2013 10:27 PM »
No confirmation of re-attempt on Tuesday yet from the DPC.
Given the situation, I wouldn't be surprised if this goes back to the IMMT tomorrow, assuming the team(s) are ready to proceed.

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Re: LIVE: Orbital Cygnus ORB-D RNDZ and BERTHING UPDATES
« Reply #41 on: 09/22/2013 10:32 PM »
I think this is short of confirming an attempt on Tuesday but it explains the 48 hour delay

Cygnus Rendezvous Delayed 48 Hours. Orbital Sciences has confirmed Sunday morning, around 1:30 a.m. EDT, its Cygnus spacecraft established direct data contact with the International Space Station (ISS) and found that some of the data received had values that it did not expect, causing Cygnus to reject the data. This mandated an interruption of the approach sequence. Orbital has subsequently found the causes of this discrepancy and is developing a software fix. The minimum turnaround time to resume the approach to the ISS following an interruption such as this is approximately 48 hours due to orbital mechanics of the approach trajectory. - courtesy of NASA; more: http://www.nasa.gov/content/cygnus-rendezvous-delayed-48-hours
Best quote heard during an inspection, "I was unaware that I was the only one who was aware."

Offline psloss

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Re: LIVE: Orbital Cygnus ORB-D RNDZ and BERTHING UPDATES
« Reply #42 on: 09/22/2013 10:40 PM »
I think this is short of confirming an attempt on Tuesday but it explains the 48 hour delay

Cygnus Rendezvous Delayed 48 Hours. Orbital Sciences has confirmed Sunday morning, around 1:30 a.m. EDT, its Cygnus spacecraft established direct data contact with the International Space Station (ISS) and found that some of the data received had values that it did not expect, causing Cygnus to reject the data. This mandated an interruption of the approach sequence. Orbital has subsequently found the causes of this discrepancy and is developing a software fix. The minimum turnaround time to resume the approach to the ISS following an interruption such as this is approximately 48 hours due to orbital mechanics of the approach trajectory. - courtesy of NASA; more: http://www.nasa.gov/content/cygnus-rendezvous-delayed-48-hours
That's using some of the same words as the first Orbital update on their microsite this morning.


Online Chris Bergin

I think this is short of confirming an attempt on Tuesday but it explains the 48 hour delay

I would also note we have a full 10 paragraphs added from L2:

http://www.nasaspaceflight.com/2013/09/cygnus-cots-graduation-iss-berthing/


Online Chris Bergin

And a final revision of the article above now live thanks to Pete....who helped despite being on holiday! What a legend!

Offline dsmillman

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Re: LIVE: Orbital Cygnus ORB-D RNDZ and BERTHING UPDATES
« Reply #45 on: 09/23/2013 08:42 AM »
This mornings' ISS DPC indicates that the software patch has not yet been uplinked to Cygnus.  Also Cygnus is an orbit above the ISS to position itself to start the rendezvous tonght.

Offline Targeteer

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Re: LIVE: Orbital Cygnus ORB-D RNDZ and BERTHING UPDATES
« Reply #46 on: 09/23/2013 01:49 PM »
The crew was just advised to cancel several Cygnus related events and there was mention of more cancellations tomorrow.
Best quote heard during an inspection, "I was unaware that I was the only one who was aware."

Online Chris Bergin

The crew was just advised to cancel several Cygnus related events and there was mention of more cancellations tomorrow.

Well that seems to rule out a Tuesday attempt. We'll see if there's confirmation coming.
« Last Edit: 09/23/2013 02:07 PM by Chris Bergin »

Offline psloss

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Re: LIVE: Orbital Cygnus ORB-D RNDZ and BERTHING UPDATES
« Reply #48 on: 09/23/2013 02:08 PM »
Are you saying current efforts have failed? Put pay - not a very american phrase.
Answered my own question, looked in British dictionary. Failed
They may need more time and there's not much before the Soyuz rendezvous, which takes priority.  That doesn't necessarily mean the efforts have failed.

Offline Targeteer

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Re: LIVE: Orbital Cygnus ORB-D RNDZ and BERTHING UPDATES
« Reply #49 on: 09/23/2013 02:13 PM »
The crew was just advised to cancel several Cygnus related events and there was mention of more cancellations tomorrow.

Karen stated she literally had nothing left to do the rest of the day. Cygnus events were evidently being saved for the end of the workday to allow time for the Cygnus reprogramming and approval process to work. 
Best quote heard during an inspection, "I was unaware that I was the only one who was aware."

Offline psloss

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Re: LIVE: Orbital Cygnus ORB-D RNDZ and BERTHING UPDATES
« Reply #50 on: 09/23/2013 02:16 PM »
Orbital confirms Tuesday is off on microsite.
http://www.orbital.com/Antares-Cygnus/

Excerpt:
Quote
This morning, Orbital and NASA together decided to postpone the approach, rendezvous, grapple and berthing operations of the Cygnus cargo logistics spacecraft with the International Space Station until after the upcoming Soyuz crew operations are complete. The Soyuz crew is due to arrive at the ISS very late on Wednesday, September 25. The earliest possible date for the next Cygnus approach and rendezvous with the ISS would be Saturday, September 28. An exact schedule will be determined following the successful completion of Soyuz operations.
« Last Edit: 09/23/2013 02:17 PM by psloss »


Offline newpylong

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Re: LIVE: Orbital Cygnus ORB-D RNDZ and BERTHING UPDATES
« Reply #52 on: 09/23/2013 02:20 PM »
Good test of on-orbit activities/duration anyway...

Offline Targeteer

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Re: LIVE: Orbital Cygnus ORB-D RNDZ and BERTHING UPDATES
« Reply #53 on: 09/23/2013 03:11 PM »
Bruce Manners (NASA COTS Proj Exec) is being interviewed on the daily ISS update.  Confirms earliest date is Saturday and mentions getting rest for personnel in orbit prepping for Soyuz docking and ground personnel working on fault resolution and solution approval
« Last Edit: 09/23/2013 03:17 PM by Targeteer »
Best quote heard during an inspection, "I was unaware that I was the only one who was aware."

Offline John44

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Offline Targeteer

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Re: LIVE: Orbital Cygnus ORB-D RNDZ and BERTHING UPDATES
« Reply #55 on: 09/23/2013 06:59 PM »
No Cygnus updates from the evening DPC.  The crew will be conducting some EMU HUT work tomorrow as an added task due to the delay.
Best quote heard during an inspection, "I was unaware that I was the only one who was aware."

Offline Kabloona

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Re: LIVE: Orbital Cygnus ORB-D RNDZ and BERTHING UPDATES
« Reply #56 on: 09/23/2013 08:25 PM »
In a NASA Spaceflight.com article (http://www.nasaspaceflight.com/2013/09/cygnus-cots-graduation-iss-berthing/), it describes the following approach to solving the GPS problem between ISS and Cygnus:

"The simple fix is to add “1024″ (the difference in week numbers between the 1980 and 1999 ephemeris) to the data received from the PROX system, which only requires modification of a single instruction in the Cygnus software."

However, is it really that simple?  There have been 13 leap seconds between 1980 and 1999. Slapping a 1024 week offset on the code does not strike me as a very precise solution.

There's an excellent discussion of the differences, including the leap second issue, which Orbital is no doubt aware of,  here:
http://forum.nasaspaceflight.com/index.php?topic=31845.msg1099999#msg1099999

Meanwhile, let's keep this thread open for updates only.

Online russianhalo117

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Re: LIVE: Orbital Cygnus ORB-D RNDZ and BERTHING UPDATES
« Reply #57 on: 09/23/2013 10:21 PM »
NET Saturday. Huge weekend coming up!

Latest Rev:

http://www.nasaspaceflight.com/2013/09/cygnus-cots-graduation-iss-berthing/
Here is official NASA Public Announcement:
LINK: http://www.nasa.gov/content/cygnus-rendezvous-postponed-to-no-earlier-than-saturday/index.html#.UkC96xajT8s

Cygnus Rendezvous Postponed to No Earlier Than Saturday
Sept 23, 2013

Managers from Orbital Sciences and NASA decided Monday morning to postpone the approach, rendezvous, grapple and berthing operations of Orbital's Cygnus cargo logistics spacecraft with the International Space Station to no earlier than Saturday, Sept. 28. Cygnus' rendezvous now will follow the launch and arrival of three crew members of Expedition 37/38 on Wednesday, Sept. 25. Michael Hopkins of NASA and Oleg Kotov and Sergey Ryazanskiy of the Russian Federal Space Agency (Roscosmos) will depart from the Baikonur Cosmodrome in Kazakhstan at 4:58 p.m. EDT and arrive at the space station at 10:47 p.m.

Orbital has confirmed that over the past 24 hours, the Orbital team developed and tested a software fix for the data format mismatch that necessitated a postponement of the first rendezvous operation that was scheduled for the early morning of Sunday, Sept. 22. However, that process, together with the impending Soyuz crew operations, resulted in a tight schedule to the point that both Orbital and NASA felt it was the right decision to postpone the Cygnus approach and rendezvous until after Soyuz operations.

An exact schedule for Cygnus will be determined following the successful completion of Soyuz operations. For the latest information about Cygnus and Orbital's demonstration cargo resupply mission, visit Orbital's page at: http://www.orbital.com/Antares-Cygnus
Expedition 37 crew members aboard the space station now will have an off-duty day in advance of a busy week ahead. This includes Tuesday's Cygnus rendezvous, followed by preparations for the arrival of three new crew members Wednesday. Michael Hopkins of NASA and Oleg Kotov and Sergey Ryazanskiy of the Russian Federal Space Agency (Roscosmos) will depart from the Baikonur Cosmodrome in Kazakhstan at 4:58 p.m. EDT aboard a Soyuz spacecraft.

Cygnus launched Wednesday aboard an Antares rocket at 10:58 a.m. EDT from NASA’s Wallops Flight Facility in Virginia after a 24 hour delay due to poor weather preventing its roll-out to the launch pad.

It has several demonstration objectives it must complete before NASA approves its capture by the Canadarm2 and its berthing to the Harmony node. The Cygnus has already achieved three of its demonstration objectives during its first two days in orbit. The vehicle first demonstrated its position and control ability, or its ability to orient itself in space; second, the vehicle turned off its engines and operated while in free drift; third, Cygnus conducted a demonstration abort maneuver.

› View Cygnus mission briefing graphics
› Read about Cygnus’ launch

Before any new cargo craft can approach and rendezvous with the station for the first time it must meet a set of objectives to prove its capabilities before it is finally captured or docked. The resupply craft is followed closely by mission controllers on its way to the station. When the spacecraft reaches certain points along its trajectory the flight director polls mission controllers before giving the “go/no-go” decision to proceed to its next point.

As Cygnus meets its demonstration objectives and moves closer to the space station, Expedition 37 Flight Engineers Luca Parmitano and Karen Nyberg will be watching and working in tandem with Mission Control. Parmitano will be in the cupola at the Canadarm2 controls monitoring its approach. Nyberg will be his back up at the secondary robotics workstation inside the Destiny laboratory.

When Cygnus meets its final demonstration objective of pointing a tracking laser at a reflector on the Kibo laboratory it will move to its capture point about 10 meters from the station. Cygnus will turn off its thrusters, operating in free drift, and Parmitano will maneuver the Canadarm2 to grapple and capture the new resupply craft.

After capture, Parmitano will operate the Canadarm2 to move Cygnus and attach it to the Harmony node. The hatches to Cygnus are planned to be opened following leak checks and power connections.

Orbital Sciences is the second company to send a commercial cargo craft to the space station. SpaceX was the first company to send its own cargo ship with two successful commercial resupply missions and two demonstration missions under its belt.

Online Chris Bergin

Now aiming for Sunday RNDZ and Berthing, per L2's rolling coverage for this mission.

Online Chris Bergin

MMT on Friday to decide when the next attempt can take place, per NASA TV just now.

Offline Hog

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Re: LIVE: Orbital Cygnus ORB-D RNDZ and BERTHING UPDATES
« Reply #60 on: 09/25/2013 09:19 PM »
Cygnus currently trailing ISS by 933 miles(1500kms).
Paul

Online Chris Bergin

PAO Josh via his Soyuz coverage notes Sunday morning is now the NET. MMTs to decide if it's possible.

Offline StarryKnight

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Re: LIVE: Orbital Cygnus ORB-D RNDZ and BERTHING UPDATES
« Reply #62 on: 09/26/2013 03:27 PM »
Software was successfully patched last night on all flight computers. The team is looking at Sunday 9/29 at about 7:15 AM EDT for capture, pending IMMT approval.

Could be a busy day in the space business with this, Falcon 9 v1.1 launch, and Proton launch.  :)
In satellite operations, schedules are governed by the laws of physics and bounded by the limits of technology.

Offline psloss

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Re: LIVE: Orbital Cygnus ORB-D RNDZ and BERTHING UPDATES
« Reply #63 on: 09/26/2013 03:57 PM »
Software was successfully patched last night on all flight computers. The team is looking at Sunday 9/29 at about 7:15 AM EDT for capture, pending IMMT approval.
Thanks for the updates.

Offline StarryKnight

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Re: LIVE: Orbital Cygnus ORB-D RNDZ and BERTHING UPDATES
« Reply #64 on: 09/26/2013 05:19 PM »
Cygnus performed a delta-v burn a little while ago and is now "parked" abuot 2400 km behind the ISS. The team will be repeating the abort demonstration later today that they did last week. This is not required since that demo was alredy performed successfully. But they are using this as further validation that the updated software did not accidently mess anything up.
In satellite operations, schedules are governed by the laws of physics and bounded by the limits of technology.

Online Chris Bergin

Orbital confirm the change to Sunday - pending MMT:
http://www.orbital.com/Antares-Cygnus/

Cygnus In-Orbit Update

Thursday, September 26, 2013

The Cygnus spacecraft remains healthy in-orbit, with all major onboard systems performing as expected. Over the past several days, the Cygnus engineering team has developed, validated and uploaded the one-line software "patch" that resolved the GPS data roll-over discrepancy that was identified during the initial approach to the ISS last Saturday.

Orbital and NASA are currently discussing the best rendezvous opportunity, with the current trajectory plan supporting Sunday morning, September 29 as the next opportunity to rendezvous and approach the ISS. This schedule is still subject to final review and approval by the NASA and Orbital teams.

The Cygnus spacecraft is currently holding at about 2,400 km behind the International Space Station. Later this evening, Cygnus will perform the first of a series of thruster burns to begin the journey back towards the ISS to be in the right position for a rendezvous as early as Sunday morning.
« Last Edit: 09/26/2013 06:02 PM by Chris Bergin »

Online Chris Bergin

Just waiting for IMMT approval now. They started the meeting 90 minutes ago.

New article, with help from Martin (MP99) and others when approval is confirmed.

There will be a new thread for Sunday.

Offline StarryKnight

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Re: LIVE: Orbital Cygnus ORB-D RNDZ and BERTHING UPDATES
« Reply #67 on: 09/27/2013 03:25 PM »
IMMT approval has been granted. Green light given for  rendezvous on Sunday morning.
In satellite operations, schedules are governed by the laws of physics and bounded by the limits of technology.

Offline psloss

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Re: LIVE: Orbital Cygnus ORB-D RNDZ and BERTHING UPDATES
« Reply #68 on: 09/27/2013 03:28 PM »
IMMT approval has been granted. Green light given for  rendezvous on Sunday morning.
Thanks.  Do you know/can you say approx. what time the RGPS demo would be attempted on Sunday morning (GMT)?
« Last Edit: 09/27/2013 03:29 PM by psloss »

Online Chris Bergin

Green light......

IMMT approval has been granted. Green light given for  rendezvous on Sunday morning.

Ahh! You're fast! ;D

Online Chris Bergin

Article:

http://www.nasaspaceflight.com/2013/09/green-light-cygnus-re-approach-iss-sunday-berthing/

Thanks to Martin and others for helping with the GPS side of things that I really struggled with!

Offline dsmillman

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Re: LIVE: Orbital Cygnus ORB-D RNDZ and BERTHING UPDATES
« Reply #71 on: 09/27/2013 04:02 PM »
The Nasa TV schedule has been updated for Sunday rendezvous and berthing. See:

http://www.nasa.gov/multimedia/nasatv/MM_NTV_Breaking.html

Offline StarryKnight

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Re: LIVE: Orbital Cygnus ORB-D RNDZ and BERTHING UPDATES
« Reply #72 on: 09/27/2013 04:21 PM »
IMMT approval has been granted. Green light given for  rendezvous on Sunday morning.
Thanks.  Do you know/can you say approx. what time the RGPS demo would be attempted on Sunday morning (GMT)?

They're hoping to verify that the patch is working sometime Saturday evening. That is several hours sooner than the demo requires. But the hope is that the PROX link can close when the spacecraft is much further way ( >200 km) so they will know long before it is needed.
In satellite operations, schedules are governed by the laws of physics and bounded by the limits of technology.

Online Chris Bergin

Because one should always remember nothing is actually official until NASA or a company say it is:

Orbital Sciences ‏@OrbitalSciences 3
#Cygnus plan to rendezvous and berth with #ISS on Sunday morning reviewed and approved.  @NASA TV begins at 4:30 a.m. for #cotsdemo mission

Offline Lee Jay

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Re: LIVE: Orbital Cygnus ORB-D RNDZ and BERTHING UPDATES
« Reply #74 on: 09/27/2013 05:52 PM »
Article:

http://www.nasaspaceflight.com/2013/09/green-light-cygnus-re-approach-iss-sunday-berthing/

Thanks to Martin and others for helping with the GPS side of things that I really struggled with!

Good job, Chris.

Offline Targeteer

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Re: LIVE: Orbital Cygnus ORB-D RNDZ and BERTHING UPDATES
« Reply #75 on: 09/27/2013 07:00 PM »
CAPCOM just passed word of the IMMT approval to the crew and that ingress would be Monday at 1000 GMT.  CAPCOM described it as a birthday present to Luca.  :D
« Last Edit: 09/27/2013 07:02 PM by Targeteer »
Best quote heard during an inspection, "I was unaware that I was the only one who was aware."

Offline Targeteer

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Re: LIVE: Orbital Cygnus ORB-D RNDZ and BERTHING UPDATES
« Reply #76 on: 09/28/2013 07:26 PM »
From the evening DPC, CAPCOM reports all on track for Cygnus grapple tomorrow.
Best quote heard during an inspection, "I was unaware that I was the only one who was aware."

Online Chris Bergin

Excellent. Thanks for keeping track on that side of things!

New thread within the hour for the business end of berthing.


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