The Russians didn't think ARISSat-1's batteries would last from Feb 16 to April 12 - April 12 being the anniversary of Gagarin's historic 1961 flight.
Kedr to Be Switched on in the ISS on April 12
15.02.2011 "Russian cosmonauts Dmitry Kondratiev and Oleg Skripochka won’t launch small spacecraft Kedr during their spacewalk scheduled for Feb.16, Roscosmos Stats Secretary, Deputy Head Vitaly Davydov told news media. According to him, the idea is to switch on Kedr inside the ISS on April 12, in order to commemorate the jubilee of Yury Gagarin’s mission. Weak batteries of the RF-amateur satellite won’t let it fly and transmit signals until this date, if the satellite is launched on Feb. 16. "Small spacecraft Kedr developed under the RadioSkaf experiment bears the name adopted by Yu.A. Gagarin call sign in his historical flight, namely Kedr. The satellite’s signal will be transmitted at radio amateur frequency of 145.95 MHz. Kedr has radio amateur call sign RS1S. "RadioSkaf is implemented in the framework of UNESCO’s student space education program." Roscosmos PAO
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