NASA STS-122 Execute Package FD04
Good Morning Atlantis!!!
Thanks for the beautiful rendezvous and docking yesterday!
Today’s timeline is basically the same as what you saw last night before you went to bed, although we’ve increased the focused inspection time by about thirty minutes.
Pictures of the starboard OMS pod blanket appear to show that a corner of the blanket is lifted. That is why it was decided to do a focused inspection of this area today. The MMT has not yet had a chance to discuss what a “lifted blanket corner” in this area means for entry, but the OPO and MER is going to recommend that it be categorized as a “TPS Degraded” case, which carries no restrictions on entry “as is”. Of course, this is preliminary and based on the view that we have. The Focused inspection will tell us more, but we just wanted you to know how it is seen at this time.
The pictures of the lifted OMS pod blanket are in the MMT summary, MSG025.
If you would like copies of the daily ISS stowage location notes for your activities on ISS that may require additional stowage information, just ask Peggy to print them out for you.
Below is the information from EGIL on consumables that you requested last night before you went to bed.
Additional Day (Above 12+0+2) 25
Current O2 Margin Available : 240 lbm Additional Day O2 Requirement: 268.5 lbm (Assumes 14.3 KW average power level for additional day plus an extra day’s worth of heaters for Columbus and ICC)
O2 needed for additional docked day: 28.5 lbm (41.5 KWH)
EGIL calculates that we need to be 225 W below the predicted power levels during the docked timeframe to get the additional 28.5 lbs of O2.
To accomplish this we’ve deactivated GPS String 2, INCO will be commanding the Ku to standby during blockage periods, and EECOM is investigating deactivating the FES while docked.
The crew has also done a terrific job saving power. Flight Day 3 was well under predicted power levels mostly due to the crew limiting the use of the Payload Bay Floodlights (@ 200 watts/light).
We recommend that the crew continue to be frugal with power (no Spartan measures required) by minimizing lights, deactivate CRTs when not required, deactivating the galley fan when not in use etc. By continuing to take these cryo-saving steps, we anticipate that we will be able to make a 12+1+2 mission as well as have O2 to transfer to ISS.
Have a great day!
FD03 MMT Summary 2
The FD03 MMT met to review the mission progress which included a continued review of ascent imagery along with the minor orbiter systems anomalies. The MMT was pleased with the excellent rendezvous and successful docking. Additionally, the MMT performed a preliminary review of the ascent trajectory and propulsion systems launch day performance all of which was nominal. During the MMT it was acknowledged that a crew medical issue was in work that could affect the FD04 EVA, but no details were given. After the MMT, the decision was made to slip the EVA 24 hours. The ISS is happy to have visitors and the ESA team is ready for an exciting docked mission and installation of the Columbus Module.
Orbiter Systems – Orbiter Systems continue to operate well. The following minor orbiter anomalies were noted but none of these are considered significant: APU 3 seal cavity drain line A heater has an erratic thermostat, GPC 3 common set fault, Supply Tank pressure FDA, and O2 Tank 1 check valve delayed reseat.
Current Cryo margins support 11+1+2 plus an additional 21 hours. The team is still weighing the option of additional power downs to gain an additional docked day versus preserving the O2 for transfer.
Ascent Peformance Review – The preliminary ascent data review indicates that ascent was very nominal. There was no evidence of SRB hold down post stud hang-ups in the orbiter acceleration data. Additionally, the SSME, ET, and ascent trajectory data (alpha, beta, q- bar, altitude, and altitude rates), all indicate that powered flight was nominal with no issues. Adaptive Guidance was triggered during this mission with a throttle bucket of 74% (72% was pre-launch prediction). Preliminary data reviews also shows that the SRB performance, and the pad debris environment were nominal with no issues.
FD 2 Inspection Preliminary Results – 583 Regions of Interest were identified on the RCC from the FD2 inspection. This number of ROIs is considered average. The FD02 TPS review has 6 items of interest with the R OMS Pod blanket being the highest priority. The RPM imagery is also being reviewed.
R OMS Pod Blanket – A blanket aft and outboard of the STS-117 location (Figure 1) has pulled up on one corner. (Figure 2). Unfortunately at this time, imagery has not provided detailed dimensions nor conditions inside the cavity. The lack of any discoloration on the blanket could indicate that the blanket did not separate at the RTV layer. The team will discuss the need for a focused inspection later today.
Ascent Debris Review – The team continues to collect and review the ascent imagery. Several debris pieces have been observed to liberate between the times of 132.9-133.2 sec MET with one confirmed impact to the orbiter belly (Figure 3). Also, after SSME ignition but before liftoff, the LOMS stinger lost a tile (Figure 4). That area is under review by the TPS team for entry, but it is known that the entry thermal environment is more benign than the ascent thermal environment at this location.
