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Landsat-5 Experiencing Problems - Imaging Suspended

posted by Satri on Tuesday October 23, @08:20AM   Printer-friendly   Email story  Permalink  Trackback URI  Slashdotthis  Diggthis  Del.icio.us
from the all-good-things-must-come-to-an-end dept.
The EOPortal informs us that Landsat 5 is experiencing problems. Not much info on this yet: "On October 6, 2007, Landsat 5 experienced an issue with its onboard batteries, leading to concerns about power balance. Imaging will be suspended while the flight operations team analyzes the problem. The Landsat team expects the investigation will last from 2 to 3 weeks. Further announcements will be made as needed." This is not the first time Landsat-5 technical problems occur.

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Landsat 5 Experiencing Technical Difficulties [+]
GIS User has a small note frrom the USGS telling us about Landsat 5 experiencing technical difficulties. From the note: "On November 26, 2005, the back-up solar array drive on Landsat 5 began exhibiting unusual behavior. The solar array drive maintains the proper pointing angle between the solar array and the sun. The rotation of the solar array drive became sporadic and the solar array was not able to provide the power needed to charge the batteries. Maintaining power to the batteries is critical to sustain proper operation of the spacecraft. The primary solar array drive failed under similar circumstances last January. As a result of this current situation, imaging operations will be suspended for at least the next two weeks or until attempts to solve the problem have been resolved."
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The full article is available here: www.gismonitor.com. Update: 09/04 16:07 GMT by S : Sorry, this is a duplicate story covered three weeks ago.
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Last week ago we told you about Landsat-5 problems, Very Spatial links to a NASA update on the Landsat Data Continuity Mission. This topic was discussed a few times before (see previous stories below). The article's introduction: "In a world newly awash with geospatial information, only Landsat offers a rich archive of global mid-resolution, highly calibrated, multispectral data of Earth’s landmasses. To extend this legacy, plans are in the works for a July 2011 launch of the Landsat Data Continuity Mission (LDCM), which will collect and archive data consistent with its predecessor Landsat satellites. This July, NASA selected Ball Aerospace and Technology Corporation to build LDCM’s Operational Land Imager (OLI) instrument, bringing the long-awaited Landsat follow-on mission closer to actualization."
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