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SuitSat may be Visible
by Miles Mann WF1F

SuitSat may be Visible:
This week ISS will be passing over North America in the early AM hours. This will make for great early morning Visibility pass off ISS. When the conditions are good, it is easy to see ISS with just your Eyes.

If you want to know if SuitSat will be visible, try checking the NASA web page link below. They have a 100+ cities listed where you can check to see when ISS is visible near your city. If you have good eyes you may even be able to see SuitSat flowing right behind ISS. SuitSat is only 6 feet long, however if you are luck you may see a dim object trailing behind ISS. Good luck.
http://spaceflight.nasa.gov/realdata/sightings/cities/index.cgi

Latest pictures of SuitSat being assembled on ISS
http://spaceflight.nasa.gov/gallery/images/station/crew-12/ndxpage17.html

http://spaceflight.nasa.gov/gallery/images/station/crew-12/ndxpage16.html

ALL NOTE !!
Since we have just determined that the batteries in SuitSast may last only a few days, suggest prepare now to receive the 1st transmissions so as not to miss out on this Historical event !!!

What is SuitSat:
In short, the crew will toss an Old spacesuit out of the airlock and let it fly away as its own satellite. The Space Station crew have attached an Amateur Radio beacon transmitter to the spacesuit.

The SuitSat project as it is called will broadcast telemetry and voice messages to earth for as long as the batteries last. Anyone with a simple FM receiver or police scanner should be able to hear the signals from SuitSat as it orbits around the earth 15 times a day.

SuitSat Details:
For more specific details on the SuitSat project, please review the AMSAT and related links below.

If you would like to help ARISS track the performance of suit sat, then you can go to the special suitsat web page and log your signal reports. http://www.suitsat.org/

Additional information on SuitSat at the AMSAT web pages.
http://www.amsat.org/amsat-new/articles/SuitSat/

ARISS SuitSat Details
http://www.amsat.org/amsat-new/articles/BauerSuitsat/index.php

ARISS video on SuitSat September 2005
mms://media.wmfd.com/amsat/SuitSat.wmv

http://www.rac.ca/ariss/Suitsat%20Rev%20D.pdf

Assuming Suit sat is activated at 22:20 UTC on February 3rd 2006, It will be heard first in Europe and Asia. North America will be in range the next day on February 4th.

Kep tracking Data
ISS
1 25544U 98067A 06025.48155427 .00009929 00000-0
71711-4 0 2161
2 25544 051.6441 201.3171 0009794 193.1268 262.2975
15.74216841410677

SuitSat project Duration:
The Reason it is important for people to get ready to Monitor the SuitSat project is because this is a short duration experiment. This is the first version of this type of project, and it will be running on Batteries only. The current expected life of the SuitSat project is approximately 2 to 6 days. If you delay in setting up your station you may miss out on this educational Experiment.

Voice Telemetry:
The SuitSat project will be transmitting on 145.990 MHz FM and will consist of:
Voice Telemetry, giving Mission Time, Suit Temperature and Battery Voltage
Voice Greeting messages in multiple languages
One SSTV image
The whole process will repeat every 9 minutes until the batteries discharge.
It is recommended that you have an audio recorder handy to record the telemetry information. The ARISS team may be collecting some of the data from individuals to help monitor the status of the project.

Schools and Science:
School systems with existing out side VHF antennas or the ability to set up a temporary out side receive antenna are welcome to listen in and collect telemetry data. The students will enjoy listing to the voice telemetry and tracking the position of the unique satellite. They may even hear one of the ISS crew talking to amateur radio stations on 145.800 MHz FM.

SuitSat Transmitter:
The SuitSat transmitter is a small hand held radio, similar to a WalkiTalki. The Kenwood TH-K2 will transmit a 500 milli-watts FM signal from SuitSat. The current frequency for SuitSat is 145.990 FM Downlink only (There is no uplink for this satellite). With a simple outside antenna and a simple VHF receiver or police scanner, you should be able to hear SuitSat when the satellite passes over your country.

ARISS is also planning on using the Kenwood D700
Transceiver on ISS to Rebroadcast the SuitSat signal on 437.800 MHz FM. This will allow you to hear SuitSat while ISS is in range of your station.

If you have already have been successful in working the Packet station or talked to the ISS crew on 2-meter voice, than you already have most of what you need.

SSTV (Slow Scan TV ):
SSTV is a way Amateur Radio stations send JPG still images around the world. We use an audio format we call SSTV. The SuitSat project will transmit Telemetry, Pre-Recorded Voice messages and one SSTV image. The whole process will repeat approximately every 9 minutes. (Robot 36 format).

What's left is to connect your computer to the speaker of your radio and some SSTV decoding software, such as ChromaPix http://www.barberdsp.com/ or similar software. Here are just two of the many Share-Ware SSTV applications on the market. There may be many more.

W95SSTV by Silicon Pixels
http://www.barberdsp.com/w95sstv/w95dload.htm

MMSSTV
http://mmhamsoft.ham-radio.ch/

There are also many High quality pay software applications that offer many more features, such as multiple windows that allow you to simultaneously receive an image while preparing your next image that you want to transmit.

CPIX
http://www.barberdsp.com/

What is Slow Scan TV?
On this web page you will find many links to help you learn more about Slow Scan TV
http://www.marexmg.org/fileshtml/sstvlinkpage.html

Tips on how to use ISS, SSTV, Packet and Voice
http://www.marexmg.org/fileshtml/howtouseiss.html

Location of Hardware on ISS
This link will show you images of some of the amateur radio hardware already installed on ISS
http://www.marexmg.org/fileshtml/radiohardware.html

Marexmg Web page
http://www.marexmg.org

73 Miles WF1F
MAREX-MG

Those wishing to record the 145.990 MHz FM signal from SuitSat overnight or while they are at work may like to try this free PC program.

VOX Recorder available free from
http://xoomer.virgilio.it/aporcino/VoxRecorder/

You be able to view the launch on the web live at 22:20 on Friday 3rd Feb at http://www.nasa.gov/multimedia/nasatv/

Online Satellite Pass Predictions- Select ISS:
http://www.amsat.org/amsat-new/tools/predict/

 

 

AMSAT-UK produces a newsletter Oscar News packed full of Amateur Satellite information.

For membership details contact the secretary Jim Heck G3WGM
Tel: +44 (0)1258 453959
Email: g3wgm@amsat.org
Website: http://www.uk.amsat.org/
Online Satellite Pass Predictions:
http://www.amsat.org/amsat-new/tools/predict/

 

 

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