 eXpress-OSCAR 53
(SSETI Express)
Spacecraft Summary
| OSCAR Designation: |
eXpress-OSCAR 53 |
|
Oscar Number: |
XO-53 |
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| International Designator: |
2005-043E |
|
Norad Number: |
28894 |
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| Common Name: |
SSETI Express |
|
Satellite Type: |
Microsatellite |
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| Launch Date: |
27 October, 2005 |
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Launch Location: |
Plesetsk MSC |
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| Launch Vehicle: |
Cosmos |
|
Apogee: |
708.00 |
|
| Perigee: |
682.00 |
|
Inclination: |
98.18 |
|
| Period: |
98.67 |
|
Weight: |
0.000 Kg |
|
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| Organization: | Student Space Exploration and Technology Initiative |
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Frequency Information
| |
| Mode U/S FM Voice Repeater: Non-Operational |
| Uplink: |
437.2500 MHz FM, PL 67.0 Hz. |
| Downlink |
2401.8350 MHz FM |
| |
| Mode U/S PacSat BBS: Non-Operational |
| Uplink: |
437.2500 MHz FSK 9600 BPS |
| Downlink |
2401.8350 MHz FSK 9600 BPS |
| Callsign(s)
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Current Keplerian Elements
XO-53
1 28894U 05043E 09325.11270865 .00000044 00000-0 18645-4 0 6209
2 28894 98.0346 210.7446 0016803 216.7226 143.2839 14.59693537216743
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Weekly Satellite Report
SSETI Express was launched Plesetsk Cosmodrome in Russia is currently in orbit. The local time of the ascending node is approximately mid morning. SSETI was assigned the OSCAR number XO-53, and the NORAD ID number 28894. Please see the SSETI project page for additional details and links to downloads and mission information.
Shortly after deployment SSETI entered safe mode and began to send 9k6 baud and carrier pulse telemetry. Many hams reported hearing it. It deployed it's three Cubesats. Somewhere around orbit 6 it was reported that SSETI was toggling between safe mode and recovery mode, and that the bus voltage was oscillating between 24V and 0V. Since that time contact with SSETI has been lost, though the control station is hopeful for recovery.
Some additional information about SSETI. Data modes will be primarily used for downlinking telemetry and data from the satellites experiments. ESA will be providing telemetry capture software for amateurs to use and will be offering a prize to the amateur station who provides them with the most telemtry after launch. The mode U/S FM voice transponder will require 67Hz tone access in a similar way to AO51 and will provide three channels of 256 bit telemetry encoded as DTMF tone bursts. S Band output is 3 Watts to 3 x 8dBic RHCP patch antennas.
Latest information including integration photographs and a webcam in the cleanroom is at http://www.sseti.net - click on "missions" and then "express". The Mission Operations website is also accessable from this page.
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Detailed Description
SSETI Express is at the launch site at the Plesetsk Cosmodrome in Russia and is in the final preparations for launch. Please see the SSETI project page for additional details and links to downloads and mission information.
The launch is in an indefinite hold as a primary payload has experienced a significant failure. The launch support team is returning from Plesetsk and will return to Plesetsk when a new launch date is announced. [9/26/05 - GS]
Data modes will be primarily used for downlinking telemetry and data from the satellites experiments. ESA will be providing telemetry capture software for amateurs to use and will be offering a prize to the amateur station who provides them with the most telemtry after launch. The mode U/S FM voice transponder will require 67Hz tone access in a similar way to AO51 and will provide three channels of 256 bit telemetry encoded as DTMF tone bursts. S Band output is 3 Watts to 3 x 8dBic RHCP patch antennas. Launch is currently scheduled for sometime in July 2005. Latest information including integration photographs and a webcam in the cleanroom is at http://www.sseti.net - click on "missions" and then "express". The Mission Operations website is also accessable from this page.
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