Launch Date |
August 13, 2014 |
Orbit |
Altitude: 617 km
Type: SunSync, 1:30 pm descending Node
Period: 97 min. |
Life |
Spec Mission Life; 7.25 years
Estimated Service Life: 10 to 12 years |
Spacecraft Size, Mass and Power |
Size: 5.7 m (18.7 feet) tall x 2.5 m (8 feet) across, 7.1 m (23 feet) across the deployed solar arrays
Mass: 2800 kilograms (6200 pounds)
Power: 3.1 kW solar array, 100 Ahr battery |
Sensor Bands |
Panchromatic: 450-800 nm
8 Multispectral: (red, red edge, coastal, blue, green, yellow, near-IR1 and near-IR2) 400 nm - 1040 nm
8 SWIR: 1195 nm - 2365 nm
12 CAVIS Bands: (desert clouds, aerosol-1, aerosol-2, aerosol-3, green, water-1, water- 2, water-3, NDVI-SWIR, cirrus, snow) 405 nm - 2245 nm |
Sensor Resolution ( or GSD, Ground Sample Distance; off-nadir is geometric mean) |
Panchromatic Nadir: 0.31 m GSD at Nadir 0.34 m at 20° Off-Nadir
Multispectral Nadir: 1.24 m at Nadir, 1.38 m at 20° Off-Nadir
SWIR Nadir: 3.70 m at Nadir, 4.10 m at 20° Off-Nadir (Commercial delivery at 7.5m resolution)
CAVIS Nadir: 30.00 m |
Dynamic Range |
11-bits per pixel Pan and MS; 14-bits per pixel SWIR |
Swath Width |
At nadir: 13.1 km |
Attitude Determination and Control |
Type: 3-axis stabilized
Actuators: Control Moment Gyros (CMGs)
Sensors: Star trackers, precision, IRU, GPS |
Pointing Accuracy and Knowledge |
Accuracy: <500 m at image start and stop
Knowledge: Supports geolocation accuracy below |
Retargeting Agility |
Time to slew 200 km: 12 seconds |
Onboard Storage |
2199 Gb solid state with EDAC |
Communications |
Image & Ancillary: 800 & 1200 Mbps X-band
Housekeeping: 4, 16, 32 or 64 kbps real-time, 524 kbps stored, X-band
Command: 2 0r 64 kbps S-band |
Max Contiguous Area Collected in a Single Pass (30° off-nadir angle) |
Mono: 66.5 km x 112 km (5 strips)
Stereo: 26.6 km x 112 km (2 pairs) |
Revisit Frequency(at 40°N Latitude) |
1 m GSD: <1.0 day
4.5 days at 20° off-nadir or less |
Geolocation Accuracy(CE90) |
Predicted Performance: <3.5 m CE90 without ground control |
Capacity |
680,000 km2 per day |