QuickBird
| QuickBird 2 | |
|---|---|
| Type: | Earth observation satellite |
| Country: |
 United States
|
| Operator: | DigitalGlobe |
| COSPAR-ID : | 2001-047A |
| Mission dates | |
| Dimensions: | 980 kg |
| Size: | 3.04 m length |
| Begin: | October 18, 2001, 18:51 UTC |
| Starting place: | Vandenberg AFB 2W |
| Launcher: | Delta II 7320-10 D288 |
| Re-entry : | January 27, 2015 |
| Status: | burned up |
| Orbit data | |
| Rotation time : | 94.2 min |
| Track height: | 482 km |
| Orbit inclination : | 97.2 ° |
QuickBird 2 was a commercial satellite for Earth observation. It was operated by DigitalGlobe (then EarthWatch). Quickbird 2 was able to capture images up to 65 cm resolution, which were commercially available. The satellite was with a Delta II rocket from the Air Force Base Vandenberg , California started on 18 October 2,001th The previous satellite, QuickBird 1 , was launched on November 20, 2000, but did not reach orbit. Its predecessor EarlyBird reached its orbit, but was given up due to problems with the energy supply.
construction
The satellite was manufactured by Ball Aerospace and Technologies and was based on the BCP2000 satellite bus . At launch, the mass was about 1028 kg, including fuel for attitude control for about 7 years, but the satellite was in operation for over 13 years.
Orbit and data acquisition
QuickBird 2 was in a sun-synchronous orbit and flew over the equator in north-south direction at 10 a.m. local time. In April 2011, the orbit was raised to extend its lifespan until early 2014. This changed some recording parameters such as resolution and the swath width , which was then 18.0 kilometers at the nadir .
Images could be recorded in two modes: panchromatic and multispectral. Panchromatic images could be recorded with a resolution of 65 cm at the nadir. In the case of multispectral images, the resolution was 262 cm; the data were then available in the four spectral ranges blue (450–520 nm), green (520–600 nm), red (630–690 nm) and near infrared (760–900 nm) . The dynamic was 11 bits in both operating modes.
The satellite could store up to 128 GB of data on board before it was transmitted to the ground stations at 320 Mbit / s in the X-band . For control purposes , connections with data rates between 2 and 256 kbit / s were available in the X-band and in the S-band .
Quickbird 2 burned up on January 27, 2015.
scope of application
- Update of topographic maps
- Generation of elevation models
- Land use mapping
- Change analysis
- Precision farming
- Urban development
Web links
- Sample images at Digitalglobe.com ( Memento from April 11, 2003 in the Internet Archive )
- Digitalglobe: QuickBird Datasheet ( Memento from March 28, 2014 in the Internet Archive ) (PDF, 2 MB, English)
- Boeing: QuickBird ( Memento from June 28, 2006 in the Internet Archive ) (PDF, 59 pages, 10 MB, English)
- ESA: QuickBird-2 (English)
Individual evidence
- ↑ Sven Grahn: The QuickBird-1 failure launch. January 9, 2010, accessed November 19, 2016 .
- ↑ QuickBird (2) - Summary. Andrews Space & Technology, archived from the original on August 2, 2010 ; accessed on July 4, 2011 .
- ↑ DigitalGlobe Completes QuickBird Satellite Orbit Raise. DigitalGlobe, April 18, 2011, archived from the original on July 8, 2011 ; accessed on July 4, 2011 .
- ↑ Space-Track.org, accessed October 3, 2019.