FYI

73 WB2OQQ

-----Original Message----- From: JSpOC/Space Correspondence Sent: Tuesday, April 10, 2012 8:58 PM To: Peter Portanova Cc: Dewitt, James L CTR USAF AFSPC 614 AOC/OL-D ; Petruna, Stacey L CTR USAF AFSPC 614 AOC/OL-D ; JSpOC/Space Correspondence Subject: DELFI C3 Close Approach Message

Sir/Ma'am,

The United States Joint Space Operations Center (JSpOC) has identified a predicted conjunction between DELFI C3 (SCC# 32789) and SCC# 31461.

Primary Object: DELFI C3 (SCC# 32789) Secondary Object: SCC# 31461 Time of Closest Approach: 13 APR 2012 19:28 UTC

Overall miss distance: 883 meters Radial (dU) miss distance: 123 meters In-Track (dV) miss distance: -535 meters Cross-track (dW) miss distance: 693 meters

Primary Radial Error (U): 18 meters Primary In-track Error (V): 1205 meters Primary Cross-track Error (W): 6 meters

Secondary Radial Error (U): 241 meters Secondary In-track Error (V): 21408 meters Secondary Cross-track Error (W): 81 meters

Very Respectfully,

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

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