NASA International Space Station On-Orbit Status 27 June 2016

A pair of Expedition 48 cosmonauts are getting a Progress cargo ship ready to undock and redock Friday morning before its ultimate departure Saturday night. The maneuver will test an upgraded telerobotically operated rendezvous system installed in the Zvezda service module after the Progress docked in December.
The Progress 62 (62P) resupply ship will undock from the Pirs docking compartment, back away to a distance of about 200 meters, then move back toward Pirs and dock 34 minutes later. Finally, the 62P will complete its mission Saturday night when it undocks for good and burns up over the Pacific Ocean less than 4 hours later.

Commander Jeff Williams checked out the Major Constituent Analyzer (MCA) inside the Destiny lab module. The MCA checks the quality and components of the International Space Station’s air. Williams also swapped out batteries on a device that listens for and detects air leaks among the background noise of the station’s systems and hardware.

Back on Earth, the next crew members to launch to the station familiarized themselves with their Soyuz MS-01 spacecraft. Veteran cosmonaut Anatoly Ivanishin and first time astronauts Kate Rubins and Takuya Onishi are at the Baikonur Cosmodrome scheduled to launch July 6 to begin a four-month mission on the station.

On-Orbit Status Report

Ultrasonic Background Noise Test (UBNT): The crew replaced batteries and transmitted data by closing out the Station Support Computer (SSC’s) Distributed Impact Detection System (DIDS) software and removing the UBNT hardware. UBNT detects high-frequency sounds generated by hardware on the U.S.-built portions of the ISS. Identifying sources of noise will aid in development of a leak locating system which would detect the high-pitched sound of air leaking through a pressurized wall. To detect leaks, the system would have to differentiate between harmless background sounds and a potentially dangerous air leak.

LAB Major Constituent Analyzer (MCA) Mass Spectrometer Assembly (MSA) Troubleshooting: In December 2014, the crew installed new Orbital Replacement Units ORU1, ORU2, and ORU8 in the Lab MCA. When the Lab MCA was restarted, there was no communication with ORU2. Today the crew attempted to isolate the problem to either ORU2 or the connector it mates with on the MCA drawer. The crew reported no visible damage to either side of the ORU2 connector interface. He performed resistance checks on sockets on the drawer side connector saver and found that four of the sockets tested had lower than expected resistances. To address one potential cause of this problem, the crew replaced ORU4, the Low Voltage Power Supply, and repeated the resistance check on the previously failed sockets. The resistances of the sockets did not change so the original ORU4 was reinstalled. The rack has been closed out with ORU2 and ORU8 uninstalled. Teams are meeting to discuss the forward plan. The Node 3 MCA is operating nominally.

Remote Power Controller RPCM LA2A3B-G RPC 2 Trip: This morning the RPC that provides power to the Fluids Integrated Rack (FIR) Primary Power feed tripped. At the time of the trip, ground teams were activating FIR for science operations. The crew reported no smoke odor and Compound Specific Analyzer Combustion Products (CSA-CP) readings were zero. A current spike high enough to trigger an RPC trip was not visible in the 50 Hz Direct Current to Direct Current Converter Unit (DDCU) current data, however, it is possible that the current spike was rapid enough to not be sampled at 50 Hz. After analysis of the system showed that the suspect components would be isolated if the main power feed was not used, the rack was successfully repowered using the auxiliary power feed. The auxiliary power feed will allow the MicroChannel Diffusion to achieve their science goals, and troubleshooting on the main power feed will occur after that payload’s objectives are complete.

Today’s Planned Activities
All activities were completed unless otherwise noted.

??-8. Configuration Setup
??-8. Body Mass Measurement r/g 2639
??-8. Closeout Ops
USOS window shutter close
Window cover close #6,8,9,12,13,14 r/g 6965
On MCC GO Regeneration of ??? ?1 Micropurification Cartridge (start)
TM750 video camera battery charge
Sprint Exercise, Optional
TORU OBT r/g 2638, 2642 + 2642
UBNT. Locate Ultrasonic Background Noise Test Battery (UBNT)
IFM Major Constituent Analyzer (MCA) Troubleshooting
UBNT. AA batteries swap
IFM Major Constituent Analyzer (MCA) Troubleshooting
WRS Maintenance
Auxiliary Laptop Anti-Virus Update / r/g 8247
VIZIR. Experiment Ops with ????? Hardware r/g 2643
Transfer of ?61 HDD from USOS / r/g 2641
Preventive maintenance of DC1 ??? hatch sealing mechanisms and Progress 431 [???] hatch
VIZIR. Experiment Photography / r/g 2644
Progress 431 (DC1) Stowage and IMS Ops / r/g 2584
??? Maintenance
IMS Delta File Prep
WRS Maintenance
Exercise Data Downlink via OCA
Progress 431 (DC1) Stowage Completion Report r/g 2234, 2315, 2435, 2512, 2584
UBNT. Hardware Stowage
On MCC GO ??? ?1 Absorption Cartridge Regeneration (end)
Preparing for Antivirus scan on Auxiliary Computer Laptops / r/g 8247
Completed Task List Items
PL CTB move
Polar4 locker prep
SSC11, SSC13 battery swap
USOS stowage consolidate
PiP PS120 secure

Ground Activities
All activities were completed unless otherwise noted.
Nominal ground commanding

Three-Day Look Ahead:
Tuesday, 06/28: TM750 camcorder battery charge & recording, 3D Printing hardware gather/experiment setup/coupon retrievals
Wednesday, 06/29: CBEF Incubator Unit cleaning, Mouse habitat IU installation, MSPR VRU SSD replacement
Thursday, 06/30: SPHERES Docking Port test/maintenance run

QUICK ISS Status – Environmental Control Group:
Component – Status
Elektron – On
Vozdukh – Manual
[???] 1 – SM Air Conditioner System (“SKV1”) – On
[???] 2 – SM Air Conditioner System (“SKV2”) – Off
Carbon Dioxide Removal Assembly (CDRA) Lab – Standby
Carbon Dioxide Removal Assembly (CDRA) Node 3 – Operate
Major Constituent Analyzer (MCA) Lab – Idle
Major Constituent Analyzer (MCA) Node 3 – Operate
Oxygen Generation Assembly (OGA) – Process
Urine Processing Assembly (UPA) – Standby
Trace Contaminant Control System (TCCS) Lab – Off
Trace Contaminant Control System (TCCS) Node 3 – Full Up