February 2017 - AMSAT-BB - mailman.amsat.org

The effect of atmospheric drag
by Roland Zurmely 17 Feb '17

17 Feb '17

The effect of atmospheric drag on an earth satellite is to INCREASE it speed ! <http://www.qsl.net/py4zbz/satelite/atrito.htm> 73 de Roland PY4ZBZ

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Satellite height versus velocity
by Roland Zurmely 17 Feb '17

17 Feb '17

Lower orbit = higher speed ! The Satellite Orbit Paradox: <http://www.qsl.net/py4zbz/satelite/SOP.htm> <O efeito do atrito com a atmosfera sobre a velocidade de um satélite> 73 de Roland PY4ZBZ

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Nayif-1 orbit update
by Graham Shirville 17 Feb '17

17 Feb '17

Hi All, We have just had a great pass over Sharjah – 32 degrees maximum elevation with 106 frames received and decoded using a AMSAT-UK Turnstile with a FUNcube Dongle and the Nayif Dashboard. We were at ground level standing in a University car-park. A quick analysis, based on the doppler curve shown on the Dashboard and the Nova predictions using the latest TLEs, suggests that the spacecraft is presently approx 40-45 seconds ahead of the TLE predictions. Whether this is a”fixed offset” or whether this difference will change each day remains to be seen. Have fun 73 Graham & Wouter in Sharjah

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BY70
by PY5LF 17 Feb '17

17 Feb '17

Hi BY70 is still alive , the "die hard satellite" Just pass over here 14:10 UTC 73

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SatPC32 display issue
by Mike Seguin 17 Feb '17

17 Feb '17

Howdy, I recently changed video cards on my computer and now SatPC32 will not display. It appears to launch OK, but nothing on my primary display. I originally had two screens, but am using just one now. I had SatPC32 displaying on my second screen originally. Is there a way to force SatPC32 to use my primary display on startup? -- 73, Mike, N1JEZ "A closed mouth gathers no feet"

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BY-70-1
by Zeljko Ulip 17 Feb '17

17 Feb '17

Just made QSO with David, G0IIQ (IO93VN); 17.02.2017. at 10.48 UTC. Very good and clear audio. My last chance to work thru BY-70-1 this evening. CU 73 Zeljko 9A2EY (JN85AT)

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BY70-1 Status
by Andre v Deventer 17 Feb '17

17 Feb '17

BY70-1 Still alive and well over KF26 at 17 Feb 09h40 UTC Orb# 810 73 Andre ZS2BK

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BY70-1 Last Chance Western USA
by KO6TZ Bob 17 Feb '17

17 Feb '17

Large turn out for what may be the final pass of BY70-1 over the Western_USA. I worked: K8YSE/7, KB6LTY, W5SAT, KO6TH, KL7CN/W6. Heard: VE4AMU just before my LOS. KO6TZ_DM13 Bob

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BY70-1 Last Chance Western USA
by KO6TZ Bob 17 Feb '17

17 Feb '17

If the estimate that BY70-1 will decay tomorrow 17 Feb 2017 between 2 & 8PM PST. The last chance to work the satellite may be tonight. Can't predict at what temperature the transmitter will stop working. For Western USA, The last workable pass maybe tonight around 10PM_PST 16 Feb 2017. I plan on being around. Die_hard Satellite users welcome ... (pun intended) KO6TZ Bob

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FN27/28 Grid Expedition Schedule -- CORRECTION
by Ken Alexander 16 Feb '17

16 Feb '17

Thanks to Bryan KL7CN/W6 for noticing that I worked up passes for tomorrow (Friday) evening with the wrong date! The Friday passes listed below replace what I posted earlier. Thanks again Bryan! Friday Evening in FN25 -------------------------- 18.02.2017 AO-73 01:29 18.02.2017 FO-29 03:15 18.02.2017 EO-79 04:09 73, Ken Alexander VE3HLS

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