Encyclopedia Astronautica
2007.12.25 - ISS On-Orbit Status 12/25/07


Off-duty day for the crew. Merry Christmas!

Progress M-62/27P is continuing its 3-day flight to the ISS for docking tomorrow morning (12/26) at ~3:25am EST at the DC1 nadir port. All onboard tests (TV, KURS, TORU) and the DV3 burn on Orbit 33, during RGS (Russian ground site) passes were nominal. (See Timeline, below).

Before breakfast, FE-2 Dan Tani and CDR Peggy Whitson completed their daily access of the SLEEP experiment (Sleep-Wake Actigraphy & Light Exposure during Spaceflight) software for data logging and filling in questionnaire entries in the experiment's laptop 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.)

FE-1 Malenchenko serviced the Russian BMP (Harmful Impurities Removal System), starting the "bake-out" cycle to vacuum on absorbent bed #2 of the regenerable dual-channel filtration system. The regen process will be terminated at ~2:45pm EST. (Regeneration of each of the two cartridges takes about 12 hours and is conducted only during crew awake periods. Filter bed 1 was regenerated yesterday.)

Yuri also performed the routine servicing of the SOZh system (Environment Control & Life Support System, ECLSS) in the SM. (Regular daily SOZh maintenance consists, among else, of checking the ASU toilet facilities, replacement of the KTO & KBO solid waste containers and replacement of EDV-SV waste water and EDV-U urine containers.)

The crewmembers completed 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 with vibration isolation (CDR, FE-1), RED resistive exercise device (CDR, FE-2) and VELO bike with bungee cord load trainer (FE-1).

Afterwards, Peggy 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).

At ~1:00pm, Dan Tani had a PFC (Private Family Conference) via S-band/audio and Ku-band/MS-NetMeeting application (which displays the uplinked ground video on the SSC-10 laptop).

At ~11:30am, CDT Whitson conducted a teleconference with the Houston Flight Control Team (FCT).

ASN-M Testing: TsUP-Moscow began with tests of the ASN-M Satellite Navigation System over six orbits, without crew involvement. (ASN-M is required for ATV (Automated Transfer Vehicle) 'Jules Verne' prox ops next year.)

Timeline for 27P Approach & Docking (all times EST):

ISS mnvr to dock attitude: 12:50am - 1:40am (-XVV -YLV)
Start of automated rendezvous: 12:56am
Progress Kurs-A activation: 1:42:30am
SM Kurs-P activation: 1:44:30am
Good Kurs-P data at 80 km: 2:09:36am
Range = 9km - VHF-2 activation (TORU cmd link): 2:36am
Range = 8km - Progress TV activation: 2:37am
Flyaround mode start: 2:54am
Stationkeeping start: 3:03am
RGS AOS: 3:15am
Final Approach start: 3:17am
27P Docking at DC1 nadir port: 3:25am
RGS LOS: 3:37am
Progress hooks closed: 3:46am
CEO photo targets uplinked for today again were Polar Mesospheric Clouds (PMC - also known as noctilucent clouds) over selected ground sites (12 minutes for each). Also suggested for Dan Tani were a series of night photographs of city lights. (Use of the footprint of city lights as a proxy for population size and density (in different cultures/economies) is proving out as a workable method of observing population change through time).

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