deOrbitSail
Mission
The DeorbitSail project is a collaboration to build a 3U CubeSat sized satellite with a deployable sail that will demonstrate rapid deorbiting.
- Specifications:
- Satellite Dimensions: 3U (10 cm x 10 cm x 34 cm)
- Sail Dimension: 4 m x 4 m
- Deorbit Time: Less than 180 days
- Launch Station: SLP, SDSC SHAR , India
- Launch Date & Time: 10thJuly ‘15 / 16:27 hrs UTC
- Altitude: 600 km
- Orbit: Polar Sun -synchronous
- Objectives:
- Provide research in the field of deorbiting
- Provide a demonstrated and verified design for deorbiting of satellites and debris
- Provide effective and efficient in-space propulsion technologies based on solar
Orbital parameters
Name deOrbitSail NORAD ? COSPAR designation ? Inclination (degree) 97.984 RAAN 81.088 Eccentricity 0.0007584 ARGP 273.958 Orbit per day 14.75593446 Period 1h 37m 35s (97.58 min) Semi-major axis 7 021km Perigee x apogee 638 x 649 km Drag factor 0.000013828 1/ER Mean Anomaly 86.095
Beacon
145.975 MHz USB 1200bps BPSK AX.25
Downlink
145.975 MHz USB 1200bps BPSK AX.25
Call
DOS
Preliminary TLE
DEORBITSAIL 1 55554U 58056A 15191.72643157 .00000000 00000-0 +13828-4 0 335 2 55554 97.9842 81.0881 0007584 273.9578 86.0949 14.75593446209360
Telemetry
Beacon Format: 255 Message ID Offset Message Data 1byte 1byte 1byte Varying Length The data contained in the message ID is given on the Message List tab. The offset in the beacons third byte should be added to the offset in the message on the telemetry tab. The beacon is setup to rotate around the following telemetry datasets# Message ID Offset Length (Bytes) 136 Satellite State 0 5 185 EPS Telemetry 12 2 136 Satellite State 0 2 184 Radio Telemetry 0 16 185 EPS Telemetry 0 35 Beacon timing is variable depending on the power levels / ground command. The expectation is that it should broadcast roughly every 30 seconds.
If you have any telemetry or TLE/frequency information, please send it to deorbitsail.messages [at] gmail.com so we can quickly learn our satellite state.
Status
Signals are received and decoded, first with the help of the WebSDR in Johannesburg South Africa and later in the evening directly by my own ground station.
2015-07-10 19:57:51.380 UTC: from DOS to SSC 1 > 01 49 01 47 00 18 00 00 00 D6 1F 00 00 40 04 73 00 03 00 02 21 > 00 03 00 0C 00 01 00 09 0A 09
To be launched July 10th 2015 at 16:28 UTC with the ISRO PSLV-C28 / DMC3 Mission. The satellite is successfully launched and active.
Homepage and other references:
Main website: deOrbitSail
Science and Technology
Mission overview
deOrbitSail eoPortal information