● (No.534) RAFT 大気圏再突入 (2007年6月2日) ------------------------------------------- 2007年5月30日、RAFT は消滅しました.......... たくさん、楽しませてくれた衛星でした........ RAFT からの最後のグッドバイ・メッセージです。 Subject: Goodbye message from RAFT PA3GUO Henk recorded: http://home.vianetworks.nl/users/hamoen/pa3guo/raft_voice_goodbye.mp3 Subject: Bye-bye RAFT WB4APR Bob wrote: Nothing heard at 0300z. RAFT is toast I assume. Last packet captured was by PE1ITR at 01:45:10 20070530014510 :RAFT]BEACON,SGATE,qAO,PE1ITR:T#768,079,103,036,067,131,00100000,999 Bye Bye RAFT! WB4APR, Bob US Naval Academy Satellite Lab http://www.ew.usna.edu/~bruninga/craft/save-raft.html Subject: [amsat-bb:98713] RAFT final report. From: Robert Bruninga To: amsat-bb Date: Fri, 1 Jun 2007 09:55:33 -0400 > Dave Johnson's RAFT telemetry page, and FINDU show > the last RAFT packet within APRS was > RAFT>BEACON,SGATE,qAO,PE1ITR:T#768,079,103,036,067,131,00100000,999 > > Battery Volts 7.9 > Sol Array mA 206 > Battery mA 72 > Load mA 134 > Temperature C 26 > Date Wed 30 01:45:11 I expanded the scale on the final temperature plot for RAFT, and it is clear to see the additional data we were getting from all the great volunteer ground stations. Re-entry was probably at 0347z over the southern Indian Ocean as predicted by Harro Zimmer. So although we didn't hear RAFT on that last 0300z pass over the USA, she was there. See the web page. http://www.ew.usna.edu/~bruninga/craft/save-raft.html If RAFT had reset due to high temps during the sun pass 30 minutes earlier, it would have returned to only 1 minute beacons. But no one reported even hearing any squelch bursts after that last packet. Throughout the 5 month 9 day mission, the KPC-3+ TNC command and control system only had one automatic re-boot. So it worked very reliably in space. It transmitted probably 1,374,000 packets. Bob, WB4APR
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