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        <li>Wednesday, 19 June 2013</li>
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<div id="contentwrapper"><div id="rightcontent"><div id="headimage"><img height="100" width="530" alt="National Space Science Data Center Header" src="/logo/nssdc_header.jpg"/></div><h1>OSO-C</h1><p><strong>NSSDC ID:</strong> OSO-C<br/></p><div class="twocol"><div class="urone"><h2>Description</h2><p>
          This was the third in a series of Orbiting Solar Observatories launched with the intention of maintaining continuity of observations during solar activity cycle. The vehicle third stage ignited prematurely and the spacecraft did not achieve orbit.
          </p></div><div class="urtwo"><h2>Alternate Names</h2><ul><li>S 57</li></ul><h2>Facts in Brief</h2><p><strong>Launch Date:</strong> 1965-08-25<br/><strong>Launch Vehicle:</strong> Delta<br/><strong>Launch Site:</strong> Cape Canaveral, United States<br/><strong>Mass:</strong> 625.0 kg<br/></p><h2>Funding Agency</h2><ul><li>NASA-Office of Space Science Applications (United States)</li></ul><h2>Disciplines</h2><ul><li>Astronomy</li><li>Earth Science</li><li>Solar Physics</li></ul><h2>Additional Information</h2><ul><li><a href="spacecraftOrbit.do?id=OSO-C">Launch/Orbital information for OSO-C</a></li></ul><ul><li><a href="experimentSearch.do?spacecraft=OSO-C">Experiments on OSO-C</a></li><li><a href="datasetSearch.do?spacecraft=OSO-C">Data collections from OSO-C</a></li></ul><h2/><p>
          Questions or comments about this spacecraft can be directed to:
          <a href="mailto:nssdc-request@lists.nasa.gov?Subject=NMC Comment/Question: OSO-C (OSO-C)">Coordinated Request and User Support Office</a>.
          </p></div></div><div class="clear"> </div><h2>Personnel</h2><table cellspacing="0" class="datatab"><thead><tr><th>Name</th><th>Role</th><th>Original Affiliation</th><th>E-mail</th></tr></thead><tbody><tr><td>Mr. John M. Thole</td><td>Project Manager</td><td>NASA Goddard Space Flight Center</td><td> </td></tr></tbody></table></div><div id="leftcontent"><div id="leftnav"><h2>NSSDC Master Catalog Search</h2>
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        <li>NASA Official: <a href="mailto:Edwin.J.Grayzeck@nasa.gov">Dr. Ed Grayzeck</a></li>
        <li>Curator: <a href="mailto:Ed.Bell@nasa.gov">E. Bell, II</a></li>
        <li>Version 4.0.24, 14 June 2013</li>
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