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73- Pete WB2OQQ www.massapequanyweather.com

Subject: DELFI C3 Close Approach

Sir/Ma'am,

The United States Joint Space Operations Center (JSpOC) has identified a predicted conjunction between DELFI C3 (SCC# 32789) and SCC# 18959.

Primary Object: DELFI C3 (SCC# 32789) Secondary Object: SCC# 18959 Time of Closest Approach: 22 JAN 2011 06:34 UTC

Overall miss distance: 552 meters Radial (dU) miss distance: 80 meters In-Track (dV) miss distance: -108 meters Cross-track (dW) miss distance: -536 meters

Primary Radial Error (U): 11 meters Primary In-track Error (V): 262 meters Primary Cross-track Error (W): 6 meters

Secondary Radial Error (U): 12 meters Secondary In-track Error (V): 74 meters Secondary Cross-track Error (W): 9 meters