SB SPACE @ ARL $ARLS007   
   ARLS007 ARISSat-1 Finally Deployed from ISS   
      
   ZCZC AS07     
   QST de W1AW     
   Space Bulletin 007  ARLS007   
   From ARRL Headquarters     
   Newington, CT  August 4, 2011   
   To all radio amateurs   
      
   SB SPACE ARL ARLS007   
   ARLS007 ARISSat-1 Finally Deployed from ISS   
      
   After a delay of almost four hours, cosmonauts Sergei Volkov,   
   RU3DIS, and Alexander Samokutyaev, successfully deployed Amateur   
   Radio's newest satellite: ARISSat-1/KEDR. The deployment --   
   originally scheduled to occur at 1457 UTC on Wednesday, August 3 --   
   was delayed due to antenna concerns.   
      
   According to US Mission Control in Houston, ARISSat-1 was supposed   
   to have two antennas -- one 70 cm antenna and one 2 meter antenna --   
   but Volkov and Samokutyaev expressed concern when they saw only one   
   antenna. After discussions between the cosmonauts, the payload   
   manager and the ground teams in Houston and Moscow, it was decided   
   to delay the deployment. At the time, it was uncertain if the   
   satellite would even be deployed during this spacewalk. If ARISSat-1   
   was not deployed during today's spacewalk, the next opportunity for   
   its deployment would be February 2012. "Instead of taking chances on   
   the satellite not working properly once deployed, it has been   
   decided to secure it for the time being," US Mission Control   
   reported when the decision to delay was made.   
      
   After much consultation, Mission Control in Moscow told the   
   cosmonauts that they were going to go ahead and deploy the   
   satellite. At 1843 UTC, Volkov jettisoned ARISSat-1 from his   
   position on the Pirs docking compartment on the ISS.   
      
   The loss of the UHF antenna means that the 435 MHz/145 MHz linear   
   transponder may not be operational. According to US Mission Control,   
   it can also mean that there may be loss in the data that can be   
   downloaded from ARISSat-1, as well as a loss of control capability   
   from the ground. Even so, radio amateurs will be able to copy voice,   
   BPSK and SSTV messages.   
      
   According to ARISSat-1/KEDR Project Manager Gould Smith, WA4SXM,   
   ARISSat-1 will be in high power mode (continuous transmission) when   
   in the Sun. It will go into low power (intermittent) mode when in   
   eclipse.   
      
   ARISSat-1 will be active on the following frequencies and modes:   
      
   * 145.950 MHz FM Downlink: FM transmissions will cycle between a   
   voice ID as RS01S, select telemetry values, 24 international   
   greeting messages in 15 languages, as well as SSTV images. If you   
   successfully receive the SSTV transmissions, you are invited to   
   upload your picture to the ARISS SSTV Gallery at,   
   http://www.amsat.org/amsat/ariss/SSTV/.   
      
   * 435 MHz - 145 MHz Linear Transponder: The linear transponder will   
   operate in Mode U/V (70 cm up, 2 meters down). It is a 16 kHz wide   
   inverting passband and the convention will be to transmit LSB on the   
   435 MHz uplink and receive USB on the 145 MHz downlink.   
      
   * 145.919 MHz/145.939 MHz CW Beacons: The CW transmissions will be   
   call sign ID RS01S, select telemetry and call signs of people   
   actively involved with the ARISS program.   
      
   * 145.920 MHz SSB BPSK-1000 Telemetry: The BPSK transmissions will   
   feature a new 1kBPSK protocol developed by Phil Karn, KA9Q. When the   
   CW2 beacon on 145.919 MHz is active, this indicates that the   
   BPSK-1000 format is being transmitted. If the CW1 beacon on 145.939   
   MHz is active, the backup of BPSK-400 format is being transmitted.   
      
   AMSAT needs your telemetry from ARISSat-1/KEDR after deployment from   
   the International Space Station. Since there are no "Whole Orbit   
   Data" storage mechanisms onboard ARISSat-1/KEDR, listener   
   submissions are the only way for AMSAT to collect the spacecraft   
   telemetry and KURSK experiment results. Here's how you can help:   
      
   * Recorded ARISSat-1/KEDR and Kursk telemetry CSV files (in the   
   ARISSatTLM folder) can be sent as via e-mail as an attachment to,   
   telemetry@arissattlm.org.   
      
   * If you are running ARISSatTLM and receiving the signal "live" from   
   ARISSat-1/KEDR, please enable the telemetry forwarding option.   
      
   * The latest telemetry can be seen live on your computer or cell   
   phone at, http://www.arissattlm.org/mobile.   
      
   AMSAT has also posted an ARISSat-1/KEDR "How To" page on their   
   website with pointers concerning digital aspects, such as BPSK   
   telemetry reception, SSTV reception and more.  The web site is,   
   http://www.amsat.org/amsat-new/ARISSat/ARISSatHowTo.php.   
      
   On this spacewalk, Volkov and Samokutyaev also installed laser   
   communications equipment and replaced experiments on the Zvezda   
   service module and retrieved a rendezvous antenna. They were unable   
   to perform the major job of the spacewalk -- relocating a boom   
   structure to aid future spacewalks -- due to time constraints. This   
   spacewalk was the third for Volkov, who performed two spacewalks as   
   Expedition 17 commander in 2008. This was the first spacewalk for   
   Samokutyaev.   
   NNNN   
   /EX   
      
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