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**More Details for 2008-01-07

ISS On-Orbit Status 01/07/08

Russian Orthodox Christmas, a holiday also for ISS.

Ahead: Week 12 of Increment 16.

S Rodzhestvom Kristovym!

CDR Whitson & FE-2 Tani started out with the daily reading of SLEEP (Sleep-Wake Actigraphy & Light Exposure during Spaceflight) experiment data accumulated during the night, for logging and filling in questionnaire entries in the SLEEP session file on the HRF-1 laptop for downlink. (To monitor the crewmembers' sleep/wake patterns and light exposure, Dan and Peggy wear a special Actiwatch device which measures the light levels encountered by him as well as his patterns of sleep and activity throughout the Expedition. The log entries are done within 15 minutes of final awakening for seven consecutive days, as part of the crew's discretionary 'job jar' task list.)

At ~5:00am EST, FE-1 Malenchenko received a 10-min VIP call via S-band from Patriarch Alexis II of the Russian Orthodox Church, speaking from TsUP/Moscow and extending best wishes to the crew on the occasion of today's Orthodox Christmas celebration. (The Russian Orthodox Church celebrates its Christmas 13 days after Western Christmas, on January 7, in accordance with the old Julian calendar. It is a day of both solemn ritual and joyous celebration. Christmas was banned throughout Russia after the 1917 Revolution, along with other religious celebrations, and it wasn't until 75 years later, in 1992, that the holiday was again openly observed. Today, it's once again celebrated in grand fashion, with citizens participating in an all-night Mass in incense-filled Cathedrals amidst the company of the painted icons of Saints, along with a traditional family get-together and special meal on Christmas Eve.)

Later, Yuri completed today's routine maintenance of the SOZh system (Environment Control & Life Support System, ECLSS) in the Service Module (SM), including ASU toilet facilities systems/replaceables, the weekly collection of the toilet flush (SP) counter and water supply (SVO) readings for calldown to TsUP.

The crewmembers performed their regular 2.5-hr physical workout program (about half of which is used for setup & post-exercise personal hygiene) on the CEVIS cycle ergometer (FE-2), TVIS treadmill (CDR, FE-1), RED (CDR, FE-2) and VELO bike with bungee cord load trainer (FE-1).

Afterwards, Peggy Whitson copied the exercise data file to the MEC (Medical Equipment Computer) laptop for downlink, including the daily wristband HRM (Heart Rate Monitor) data of the workouts on RED, followed by their erasure on the HRM storage medium (done six times a week).

With the Russian O2 (oxygen) generator 'Elektron' turned off since 12/28/07, the FE-1 had time set aside for another 1-hour O2 repress of the cabin atmosphere from Progress M-62/27P storage tankage, if required. Yesterday's repress added about 8 mmHg of O2 into the ISS as per plan. (The Elektron will remain powered down until 1/9/08 to conserve hardware lifetime. During this time, the station will be periodically repressurized with oxygen from Progress 27P.)

A new entry still on discretionary US 'job jar' task list for Peggy and Yuri is 'ghosting' an updated personal image with their preferred material on a 60GB hard disk in an A31p laptop UltraBay Adapter reserved as their CPSD (Crew Personal Support Disk), a 45-min task for each.

Also on Whitson's voluntary task list, at her convenience, is an audit of rack locations, using the IMS (Inventory Management System). (The audit function, introduced with the implementation of IMS software version 2.0, allows the crewmember to set up audits of bags, kits, containers and stowage locations on the laptop.)

A third new item on the 'job jar' task list is for FE-2 Tani to continue his crew departure preparations.

The two flight engineers were scheduled for PFCs (Private Family Conferences) via S-band/audio and Ku-band/MS-NetMeeting application (which displays the uplinked ground video on the SSC-9 laptop), Yuri at ~6:20am EST, Dan at ~11:50am.

No CEO photo targets uplinked for today.

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