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MRPO Daily Status Report 3-19-03

Status Report From: Microgravity Research Program Office
Posted: Wednesday, March 19, 2003


GMT Date: 078

Calendar Date: 03/19/03

Increment: 6

Stage: 11A

Week 16

Payloads currently on-board ISS:
BSTC, CGBA, CSLM-2, InSPACE, MAMS, MSG (facility), PFMI, SAMS, STES-10, SUBSA and ZCG.

Status:
MAMS, and STES-10 continue nominal, basically unattended, operations. SAMS is in a recovery mode after an unplanned power down. BSTC, CGBA, CSLM-2, InSpace, PFMI, SUBSA and ZCG are inactive. MSG trouble-shooting is continuing.

EXPRESS RACKS 1 and 4 (ER1 & ER4) are currently powered and supporting payload operations, however both racks experienced an unplanned power down earlier today. A communication problem between the Guidance, Navigation and Control MDM and the Russian Segment caused the ISS to begin transitioning to a survival mode and the automatic power down of ER1 and ER4. ER2, ER3 & ER5 are currently powered down.

Evaluation of the MSG circuit breaker problem continues, and troubleshooting procedures are being implemented. Thirteen sensor cables were disconnected from MSG on day 59 and have been reconnected one at a time, to hopefully isolate the troublesome circuit, but no anomalies have occurred. MSG troubleshooting continued today and included powering the rack and subsystems except for the recently replaced fan. No problems occurred during today’s test. Further trouble-shooting is contingent on the results of an ESA Control Board meeting tomorrow.

InSpace Coil assemblies may need to be inspected again prior to beginning test operations if it becomes feasible to install the payload in the MSG.

MAMS is currently operating nominally in the quasi-steady mode. Earlier today MAMS experienced a loss of power due to the unplanned power down of ER1. MAMS was repowered after rack power was restored. HiRAP is currently inactive. MAMS data is available on the acceleration measurement web page.

PFMI hardware removal from the MSG is contingent upon success of MSG trouble-shooting.

Recovery of SAMS data flow is continuing following the unplanned power down of ER1 and ER4 earlier today. Complete recovery of data flow from the SAMS sensors in EXPRESS Racks is expected today. The SAMS sensor in MSG is turned-off. SAMS data is also available on the acceleration measurement web page.

STES-10 health and status data is nominal. Earlier today STES-10 experienced a loss of power due to the unplanned power down of ER4. STES-10 was re-powered after rack power was restored. After being re-powered, the crew reported flashing lights on the STES control panel indicating a low battery warning. Ground commanding corrected the status and the payload has been nominal since.

Near-term Outlook:

Week 16 (3/17-3/23) – Planning for this week was based on approximately 22 hours of crew time for NASA payload operations. The crew will continue preparations for the recently defined EVA now being planned for week 19. Further MSG trouble-shooting is contingent on the results of an ESA Control Board meeting this Thursday.

Week 17 (3/24-3/30) - Preliminary planning for this week is being based on approximately 2 hours of crew time for NASA payload operations. The crew will continue preparations for the recently defined EVA now being planned for week 19. Time can be allocated for MSG trouble-shooting if it is needed.

M. Vlasse, PhD, DSc
PSR Increment Scientist


ACRONYMS:

BCSS Biotechnology Cell Science Stowage
BSTC Biotechnology Specimen Temperature Controller (General status information on this payload will include coverage of the following items of support equipment: BTR, BCSS and GSM)
BTR Biotechnology Refrigerator
CGBA Commercial Generic Bioprocessing Apparatus
ESEM Exchangeable Standard Electronic Module
ER1 EXPRESS RACK 1
ER2 EXPRESS RACK 2
ER3 EXPRESS RACK 3
ER4 EXPRESS RACK 4
ER5 EXPRESS RACK 5
GSM Gas Supply Module
InSPACE Investigating the Structure of Paramagnetic Aggregates
MAMS Microgravity Acceleration Measurement System
MDM Multiplexer/Demultiplexer
MSG Microgravity Science Glovebox
OCR Operations Change Request
PAO Public Affairs Office
PFMI Pore Formation and Mobility Investigation
PGB Plant Generic Bioprocessing Apparatus
PSR NASA Code U Physical Sciences Research Division
RIC Rack Interface Controller
SAMS Space Acceleration Measurement System II
SPD NASA Code U Space Products Development Division
STES Protein Crystal Growth - Single Thermal Enclosure System
SUBSA Solidification Using a Baffle in Sealed Ampoules
ZCG Zeolite Crystal Growth

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