ISS On-Orbit Status 05/26/12

All ISS systems continue to function nominally, except those noted previously or below. Saturday - Crew half-day off.

Upon wakeup, FE-3 Acaba, FE-5 Kuipers & FE-6 Pettit completed their weekly post-sleep session of the Reaction Self-Test (Psychomotor Vigilance Self-Test on the ISS) protocol, the 43rd for Don & Andr, the 3rd for Joe. [RST is done twice daily (after wakeup & before bedtime) for 3 days prior to the sleep shift, the day(s) of the sleep shift and 5 days following a sleep shift. The experiment consists of a 5-minute reaction time task that allows crewmembers to monitor the daily effects of fatigue on performance while on ISS. The experiment provides objective feedback on neurobehavioral changes in attention, psychomotor speed, state stability, and impulsivity while on ISS missions, particularly as they relate to changes in circadian rhythms, sleep restrictions, and extended work shifts.]

After wakeup, Gennady Padalka performed the routine inspection of the SM (Service Module) PSS Caution & Warning panel as part of regular Daily Morning Inspection.

CDR Kononenko, FE-1 Padalka & FE-2 Revin joined in conducting the regular weekly three-hour task of thorough cleaning of their home, including COL (Columbus Orbital Laboratory) and Kibo JPM (JEM Pressurized Module). ["Uborka", usually done on Saturdays, includes removal of food waste products, cleaning of compartments with vacuum cleaner, damp cleaning of the SM dining table, other frequently touched surfaces and surfaces where trash is collected, as well as the sleep stations with a standard cleaning solution; also, fan screens and grilles are cleaned to avoid temperature rises. Special cleaning is also done every 90 days on the HEPA (high-efficiency particulate air) bacteria filters in the Lab.]

As part of Uborka house cleaning, Oleg, Sergei & Gennady also completed regular weekly maintenance inspection & cleaning of fan screens in the FGB (TsV2) plus Group E fan grilles in the SM (VPkhO, FS5, FS6, VP) and the BMP Harmful Contaminants Removal System grille in the SM.

Don Pettit started another sampling run with the AQM (Air Quality Monitor), deactivating the system ~5 hrs later. [Consisting of the EHS GC/DMS (Environmental Health Systems Gas Chromatograph / Differential Mobility Spectrometer), the system is controlled with "Sionex" expert software from the SSC (Station Support Computer)-12 laptop. The AQM demonstrates COTS (Commercial Off-the-Shelf) technology for identifying volatile organic compounds, similar to the VOA (Volatile Organics Analyzer). This evaluation will continue over the course of several months as it helps to eventually certify the GC/DMS as nominal CHeCS (Crew Health Care Systems) hardware],

Next, Pettit & Kuipers set up the Node-2 camcorder with MPC (Multi-Protocol Converter) and Firewire cable for Dragon hatch opening and powered down all CQ (Crew Quarters) laptops prior to removing power from the CQs for the Dragon ingress.

Afterwards, Andr & Don removed the CBM CPAs (Common Berthing Mechanism Controller Panel Assemblies) from the Node-2 nadir port and equalized the pressures between Dragon and ISS.

At ~5:53am EDT, Dragon's internal hatch was opened, and Don Pettit & Oleg Kononenko entered Dragon wearing protective masks and goggles to set up for IMV (Intermodule Ventilation) for 20 min before final ingress.

Read this article:

NASA ISS On-Orbit Status 26 May 2012