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CX2SA > ISS 14.02.07 22:30l 79 Lines 3086 Bytes #999 (0) @ WW
BID : 52015-CX2SA
Read: GUEST OE7FMI
Subj: ISS Status Report: SS07-08
Path: DB0FHN<DB0RGB<DB0AAB<DB0FSG<HB9EAS<HB9PD<HB9IAP<I0TVL<HS1LMV<CX2SA
Sent: 070214/2015Z @:CX2SA.LAV.URY.SA #:52015 [Minas] FBB7.00e $:52015-CX2SA
From: CX2SA@CX2SA.LAV.URY.SA
To : ISS@WW
> SUBMITTED BY ARTHUR N1ORC - AMSAT A/C #31468
>> Feb. 12, 2007
>>
>> Allard Beutel
>> Headquarters, Washington
>> 202-358-4769
>>
>> Kyle Herring
>> Johnson Space Center, Houston 281-483-5111 STATUS REPORT: SS07-08
>>
>> INTERNATIONAL SPACE STATION STATUS REPORT: SS07-08
>>
>> HOUSTON - An unexpected circuit breaker trip early Sunday caused a
>> power outage on the International Space Station. All systems were
>> back up by Monday morning with no impact to operations on board. The
>> safety of the Expedition 14 crew and the complex was never an issue.
>> The first indications of a problem came with the loss of
>> communications between the station and mission control just after
>> 12:00 a.m. CST Sunday when an electrical switching unit experienced a
>> brief malfunction that appropriately caused a breaker to trip,
>> protecting the electrical system of the station much like a circuit
>> breaker protects electrical systems and equipment in a home.
>> Expedition 14 Commander Mike Lopez-Alegria and Flight Engineers
>> Mikhail Tyurin and Suni Williams - awake since mid-evening Saturday -
>> took immediate action and followed procedures on board to recover the
>> communications link with mission control, Houston, at about 1:35 a.m.
>>
>> During the remainder of Sunday and through early Monday, restoration
>> of systems continued. The systems affected included:
>>
>>
>> One of two redundant communications systems
>> One of four gyroscopes used to maintain the station's position, or
>> orientation
>> Several scientific facilities, including the freezer containing
>> experiment samples
>> The Ku Band high data rate and television system
>> Several smoke detectors and various heaters that maintain a thermal
>> balance of external components, including the robotic arm and its
>> mobile base
>>
>>
>> None of these systems was permanently affected, and the equipment's
>> temporary shut down did not impact research work or upcoming planned
>> activities.
>> In addition to the recovery from the power outage, the crew also
>> began early preparations for the next spacewalk by Tyurin and
>> Lopez-Alegria. During that spacewalk scheduled for Feb. 22, the two
>> will free a stuck antenna on the ISS Progress 23 supply craft and
>> survey navigation systems for the European Automated Transfer
>> Vehicle's docking capability to the Zvezda Service Module. They will
>> try to secure or remove the antenna to preclude any interference
>> during undocking in April. The spacewalk will be the 10th for
>> Lopez-Alegria, which will be a U.S. astronaut record. The two will
>> wear Russian Orlan suits for the excursion out of the Pirs docking
>> compartment.
>>
>>
>> For more about the crew's activities and station sighting
>> opportunities, visit:
>> http://www.nasa.gov/station
>>
>> -end-
>>
>>
>>
>>
>>
>>
>
----
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