File:Progress M-21M first undocking.jpg
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English: The unpiloted Progress 53 cargo ship undocks from the aft port of the Zvezda service module at 3:58 a.m. (CDT) on April 23 and begins its relative separation from the International Space Station for tests on its upgraded Kurs automated rendezvous system that were delayed from last November. The Russian resupply vehicle will move to a distance of some 300 miles from the complex before it begins to phase back in, testing the Kurs-NA rendezvous hardware and its associated software. The enhanced Kurs system will be incorporated into future Progress vehicles to reduce weight by eliminating several navigational antennas, thus enabling the Progress to carry additional supplies to the station. The Progress is scheduled to redock to Zvezda around 7:15 a.m. (CDT) April 25. |
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| Source | https://www.flickr.com/photos/nasa2explore/14032655116/ |
| Author | NASA |
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This image or video was catalogued by Johnson Space Center of the United States National Aeronautics and Space Administration (NASA) under Photo ID: ISS039-E-014672. This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing. Other languages:
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This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.) |  |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
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| current | 00:06, 9 July 2014 | | 4,256 × 2,832 (1.1 MB) | Ras67 (talk | contribs) | == {{int:filedesc}} == {{Information |Description={{en|1=The unpiloted Progress 53 cargo ship undocks from the aft port of the Zvezda service module at 3:58 a.m. (CDT) on April 23 and begins its relative separation from the International Space Station... |
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