| Names | GeoEye-2 |
|---|---|
| Mission type | Earth observation |
| Operator | DigitalGlobe |
| COSPAR ID | 2016-067A |
| SATCAT no. | 41848 |
| Website | https://www.maxar.com/ |
| Mission duration | 7 years (planned) 2 years, 1 month and 27 days (achieved) |
| Spacecraft properties | |
| Bus | LM-900 [1] |
| Manufacturer | Lockheed Martin Space Systems[1] |
| Launch mass | 2,485 kg (5,478 lb) [2] |
| Dimensions | 7.9 × 5.3 m (26 × 17 ft) [3] |
| Start of mission | |
| Launch date | 11 November 2016, 18:30:33 UTC |
| Rocket | Atlas V 401 (AV-062) |
| Launch site | Vandenberg, SLC-3E |
| Contractor | United Launch Alliance |
| Entered service | 26 November 2016 [4] |
| End of mission | |
| Disposal | Declared unrecoverable |
| Declared | 7 January 2019 |
| Decay date | 30 November 2021 |
| Orbital parameters | |
| Reference system | Geocentric orbit[5] |
| Regime | Sun-synchronous orbit[3] |
| Perigee altitude | 609.95 km (379.01 mi) |
| Apogee altitude | 613.28 km (381.07 mi) |
| Inclination | 97.98° |
| Period | 96.93 minutes |
| Repeat interval | 3 days [6] |
| Main telescope | |
| Name | GeoEye Imaging System-2 |
| Diameter | 1.1 m (3 ft 7 in) [7] |
| Wavelengths | Panchromatic: 450-800 nm Multispectral: 450-920 nm [3] |
| Resolution | Panchromatic: 31 cm (12 in) Multispectral: 124 cm (49 in) |
WorldView-4, previously known as GeoEye-2, was a third generation commercial Earth observation satellite launched on 11 November 2016, at 18:30:33 UTC. The spacecraft was operated by DigitalGlobe. With a maximum resolution of 31 cm (12 in), WorldView-4 provided similar imagery as WorldView-3, the highest resolution commercially available at the time of its launch.[8]
The spacecraft suffered a failure in one of its control moment gyroscopes in January 2019, and operations were unable to be recovered.[9] It reentered over New Zealand on 30 November 2021.[10]
- ^ a b "WorldView 4 (WV 4, GeoEye 2)". Gunter's Space Page. Retrieved 19 March 2016.
- ^ Cite error: The named reference
sfnow20160914was invoked but never defined (see the help page). - ^ a b c "WorldView-4" (PDF). DigitalGlobe. November 2015. Archived from the original (PDF) on 24 April 2016. Retrieved 19 March 2016.
- ^ Henry, Caleb (2 December 2016). "DigitalGlobe releases first photo from WorldView-4". SpaceNews. Retrieved 3 December 2016.
- ^ "WorldView-4 - Orbite". Heavens Above. Retrieved 14 November 2016.
- ^ "GeoEye-2 (WorldView-4) Satellite Sensor (0.34m)". Satellite Imaging Corporation. Retrieved 19 March 2016.
- ^ "Primary Mirror Blank Assembly for GeoEye-2". GIM International. 11 June 2008. Retrieved 19 March 2016.
- ^ Warren Ferster (11 June 2014). "U.S. Government Eases Restrictions on DigitalGlobe". SpaceNews. Retrieved 3 March 2023.
- ^ Cite error: The named reference
sn20190107was invoked but never defined (see the help page). - ^ Jonathan McDowell [@planet4589] (1 December 2021). "The Worldview-4 commercial imaging satellite reentered over New Zealand at about 0520 UTC Nov 30. It was launched in 2016 but its imager failed in early 2019" (Tweet) – via Twitter.