-
#140
by
Chris Bergin
on 15 May, 2010 18:27
-
Mike: Some days are easier than others, and today we have some difficulties. (DAM and OBSS).
On pan/tilt unit - couldn't gimbal the camera and sensors to the required angles. Deterimed we ran into a snag with the gimbal system. Can't move the primary camera fully up, so gone to a secondary mode - DC hard mounted to the boom.
Standard review process with DAT.
On the conjunction the debris has an eliptical orbit. We know it's there, but don't know the source. Will come close an hour after docking tomorrow. Deved a path to do a DAM if required, or proceed as planned. Deterimation to lower ISS will be made later today. Will occur 8:07 Central if required. Have tracking on the object, it's on the 10 km threshold.
Still have forward work ahead of us. Checked out EMUs, and the SAFERS. All fine.
-
#141
by
Chris Bergin
on 15 May, 2010 18:31
-
Questions.
Mike: We use the LDRI on the Pan/Tilt unit. Hi res camera being used, but does not provide all the coverage. Didn't get the T-0 umbilicals and OMS Pod today, so will use the RPM for that. Will determine what gaps we have in the coverage.
It's a mixed bag, we have more coverage with the planned camera, but it's still high resolution with the camera we're now using.
On FI:
Mike: FD5 reserved, late on that day we have 1.5 hours reserved. Too early to tell if we need to go through that path. Still need to review the ascent images, today's data and RPM tomorrow.
-
#142
by
Ronsmytheiii
on 15 May, 2010 18:32
-
-
#143
by
Chris Bergin
on 15 May, 2010 18:35
-
How big is the debris?
Mike: Don't have that info, but it's big enough to track. Don't know size or origin.
How did the snag occur?
Mike: Too early to tell, routed in a way it's snagging on the back of the camera. Don't know if it was prior to launch or during when the cable got into this config. Spent two orbits trying to troubleshoot and get the snag free, but had no luck with that. Have lots of time to solve this problem.
Will get all the port wing maybe via images taken from ISS on approach, or FI. We'll see what coverage we get.
EVA option?
Mike: We do need to discuss what to do with late inspections. There's a lot of MMOD up there we need to manage. Primary is to use the sensors and cameras on the end of the Pan/Tilt Unit. Whether we need to do a spacewalk or leave it alone is yet to be determined. Probably would not be before EVA-2 if we took that option.
-
#144
by
Chris Bergin
on 15 May, 2010 18:53
-
More on DAM:
Miss distance is right on the edge at 10km. Complicating factor on the DAM is when the shuttle docks with the ISS it takes some amount of time to hardmate the vehicles. Takes a finite amount of time to get into docked attitude - 15 to 45 minutes, so cutting it close if we can dock, structurally mated and then into attitude relative to the DAM. We can't get confident we'd be able to do that after docking, so folks decided it was best to DAM first and alter shuttle's approach.
With some of these objects up there everything is moving fast. Just a small error could make a big difference. A couple of seconds at that speed could mean you miss by a huge amount of distance or very little.
Inspections:
The team is a world class team, we've got some of the best engineers on the planet supporting Atlantis. I'm confident given a bit of time we'll get what we need and clear her for coming home. Give it a couple of days and we'll (have a plan).
On OBSS history:
RTF time in schedule and budget meant we gained a number of imaging sensors. We used all the sensors during RTF to test the systems and LDRI has its own illumination source and we decided that was the best to get the entire heatsheild inspected without impacting the crew day as we can use it day and night.
The DC can only be used during daylight. With the pan/tilt issue we couldn't even use the LDRI illumination source. So half the day is not available to us to scan the heatsheild. Also the LDRI uses streaming video so we can use that in real time, as opposed to DC which takes snap shots, and we have to be careful to avoid gaps in the coverage.
STS-114/STS-121 held the tests that resulted in us using LDRI.
-
#145
by
Chris Bergin
on 15 May, 2010 18:53
-
Question: "Have you seen damage yet"
Mike: Didn't see anything that was obvious. Let the imagery folks review the data.
DAM again:
Mike: (IF) We're going to change where station is in the sky, which is something we don't do for a shuttle mission. This is unique if we change where the Station is. The difference of the burns will be by a couple of minutes and duration.
OBSS stow:
Mike: Will be able to stow the boom normally, three attach points and they are not related to the problem area. Will be able to stow that no problem.
RPM:
Talking about adding a third crewmember for extra images during the RPM. Normal scan patten includes nose on images as well as top side. We gather some images of the tail end, as she goes through a full 360 degree backflip. Concentrates on lower surfaces. Edge on views are good for gap filler images, so we'll get good imagery and we'll wait for the right light to help. We'll probably have an additional 800mm camera for images on the port wing.
DAM:
Primary plan is to use the Russian Progress propulsion. Already organized with the Russians pending the decision in the next couple of hours.
Presser over.
-
#146
by
Ronsmytheiii
on 15 May, 2010 18:54
-
waiting on daylight to begin port survey
-
#147
by
Ronsmytheiii
on 15 May, 2010 18:58
-
6 minutes till sunrise, 51 minutes of sunlight
-
#148
by
Ronsmytheiii
on 15 May, 2010 19:00
-
want to know about SSV/Rendezvous tools,if they should wait on survey, Houston agrees for SSV, waiting on tools
-
#149
by
Ronsmytheiii
on 15 May, 2010 19:05
-
Go to press on port survey
-
#150
by
Ronsmytheiii
on 15 May, 2010 19:13
-
-
#151
by
Ronsmytheiii
on 15 May, 2010 19:24
-
looking at port t-0 umbilical, now to the OMS pod
-
#152
by
Ronsmytheiii
on 15 May, 2010 19:27
-
-
#153
by
ChrisC
on 15 May, 2010 19:29
-
Howdy all ... I just read through this thread, thanks Ron and Chris B. for the transcribes. Has anyone heard news of SRB status? I'm hoping to catch them entering through the locks. Also does anyone know what radio frequency the ships use?
Edit: thanks Chris B, I'll check the viewing thread. It's tough with the mobile data network troubles here at KSC.
-
#154
by
Ronsmytheiii
on 15 May, 2010 19:32
-
ready for rendezvous tools checkout, port survey is done moving OBSS to berth, NC3 will be on time
-
#155
by
Chris Bergin
on 15 May, 2010 19:35
-
Howdy all ... I just read through this thread, thanks Ron and Chris B. for the transcribes. Has anyone heard news of SRB status? I'm hoping to catch them entering through the locks. Also does anyone know what radio frequency the ships use?
Usually one for the viewing thread, but we don't know yet. If it's not mentioned at the post-MMT we'll see it documented before long and will note it.
-
#156
by
Space Pete
on 15 May, 2010 19:37
-
-
#157
by
Ronsmytheiii
on 15 May, 2010 19:42
-
-
#158
by
Ronsmytheiii
on 15 May, 2010 19:43
-
brakes on PDRS on hover mode
-
#159
by
robertross
on 15 May, 2010 19:44
-
Thanks for the great coverage everyone!
