[HoustonHam] FW: ARLS007 ARISSat-1 Finally Deployed from ISS

[Chris Boone]

> -----Original Message-----
> 
> 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 at 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