Data Sheets


Issue link:

Contents of this Issue


Page 1 of 1

MXR-DS-wV4 06/20 Specifications collection scenarios ■ Multispectral sensor bands ■ Panchromatic Orbit Altitude: 617 km Type: Sun Synchronous, 10:30 am descending Node Period: 97 min Spacecraft size and aperture Size: 5.3 m (17.7 ft) tallx2.5 m (8 ft) across 7.9 m (26 ft) across deployed solar arrays Aperture: 1.1m Sensor bands Panchromatic: 450-800 nm 4 Multispectral: Red: 655-690 nm Green: 510-580 nm Blue: 450-510 nm Near-IR: 780-920 nm Sensor resolution (or GSD, ground sample distance; off-nadir is geometric mean) Panchromatic Nadir: 0.31 m 20 degrees off-nadir: 0.34 m 56 degrees off-nadir: 1.00 m Multispectral nadir: 1.24 m 20 degrees off-nadir: 1.38 m 56 degrees off-nadir: 4.00 m Dynamic range 11-bits per pixel Swath width At nadir: 13.2 km Attitude determination and control Type: 3-axis stabilized Actuators: Control Moment Gyros (CMGs) Sensors: star trackers, solid state 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: 10.6 sec Onboard storage 3200 GB solid state with EDAC Communications Image and ancillary data: 800 mbps X-band Housekeeping: 120 kbps real time, X-band Command: 64 kbps S-band Max Contiguous Area Collected in a Single Pass (30 degrees off-nadir angle) Mono: 66.5 kmx112 km (5 strips) Stereo: 26.6 kmx112 km (2 pairs) Revisit frequency (at 40 degrees North latitude) 1 m GSD: < 1.0 day Total constellation >4.5 accesses/day Geolocation accuracy (CE90) Predicted <5 m CE90 without ground control Capacity when collecting 680,000 sq km per day

Articles in this issue

Links on this page

view archives of Data Sheets - WorldView-4