Near Earth Object Surveillance Satellite
| Mission type | Asteroid detection |
|---|---|
| Operator | CSA, DRDC |
| COSPAR ID | 2013-009D |
| SATCAT no. | 39089 |
| Website | neossat |
| Mission duration | Primary mission: 1 year Elapsed: 12 years, 3 months and 25 days |
| Spacecraft properties | |
| Bus | Multi-Mission Microsatellite Bus |
| Manufacturer | David Florida Laboratory, Spectro, Microsat Systems |
| Launch mass | 74 kg (163 lb) |
| Dimensions | 137 × 78 × 38 cm (54 × 31 × 15 in) |
| Power | 45 watts |
| Start of mission | |
| Launch date | February 25, 2013, 12:31 UTC |
| Rocket | PSLV-CA C20 |
| Launch site | Satish Dhawan FLP |
| Contractor | ISRO/Antrix |
| Orbital parameters | |
| Reference system | Geocentric |
| Regime | Sun-synchronous |
| Semi-major axis | 7,155.78 km (4,446.40 mi) |
| Perigee altitude | 776 km (482 mi) |
| Apogee altitude | 792 km (492 mi) |
| Inclination | 98.61 degrees |
| Period | 100.41 minutes |
| Mean motion | 14.34 |
| Epoch | 24, 20, 10:52:44 UTC |
The Near Earth Object Surveillance Satellite (NEOSSat) is a Canadian microsatellite using a 15-cm aperture f/5.88 Maksutov telescope (similar to that on the MOST spacecraft), with 3-axis stabilisation giving a pointing stability of ~2 arcseconds in a ~100 second exposure. It is funded by the Canadian Space Agency (CSA) and Defence Research and Development Canada (DRDC), and searches for interior-to-Earth-orbit (IEO) asteroids, at between 45 and 55 degree solar elongation and +40 to -40 degrees ecliptic latitude.