Hello,

UPDATE #2

73 WB2OQQ

Subject: UPDATE: DELFI C3 Close Approach Message

Sir/Ma'am,

The United States Joint Space Operations Center (JSpOC) has updated a predicted conjunction between DELFI C3 (SCC# 32789) and SCC# 15495.

Primary Object: DELFI C3 (SCC# 32789) Secondary Object: SCC# 15495 Time of Closest Approach: 10 JUL 2012 12:49 UTC

Overall miss distance: 303 meters Radial (dU) miss distance: -75 meters In-Track (dV) miss distance: -4 meters Cross-track (dW) miss distance: -294 meters

Primary Radial Error (U): 37 meters Primary In-track Error (V): 1580 meters Primary Cross-track Error (W): 11 meters

Secondary Radial Error (U): 13 meters Secondary In-track Error (V): 138 meters Secondary Cross-track Error (W): 9 meters

Please reply to this message to acknowledge receipt of this close approach notification.

It is possible to provide another estimate using owner/operator ephemeris data. If the satellite operator is interested please have them reply to all addresses listed in the Cc line. Email is the preferred method of communication.

Thank you for your time and assistance. Very Respectfully,

JSpOC Orbital Protection Team Joint Space Operations Center Vandenberg Air Force Base, California USA

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