Landsat 5
| Landsat 5 | |
|---|---|
|
|
| Type: | Earth observation satellite |
| Country: |
 United States
|
| Operator: |
 NASA / USGS
|
| COSPAR-ID : | 1984-021A |
| Mission dates | |
| Begin: | March 1, 1984 |
| Starting place: | Vandenberg Air Force Base SLC-2 |
| Launcher: | Delta 3920 |
| Status: | inactive |
| Orbit data | |
| Rotation time : | 98.6 min |
| Orbit inclination : | 98.3 ° |
| Apogee height : | 698 km |
| Perigee height : | 683 km |
Landsat 5 is an American earth observation satellite that was in operation from 1984 to 2013. It is the fifth in the series of Landsat satellites. The management was carried out by NASA and the United States Geological Survey , which was responsible for processing the data.
Mission timing
The satellite was launched on March 1, 1984 with a Delta rocket from Vandenberg Air Force Base . 2.5 million recordings were transmitted during 150,000 orbits of the earth . Among other things, photographs of the Chernobyl nuclear disaster in 1986 and the tsunami after the earthquake in the Indian Ocean in 2004 became known .
From 1995 to 2012, the satellite's multispectral scanner was out of service. In 2005 the drives of the solar module failed, so that it could no longer be aligned with the sun. The mission was threatened with abandonment due to insufficient power supply. However, the problem was solved by rotating the entire satellite.
In 2012, the planning for the decommissioning began. The last pictures were broadcast on January 6, 2013; the instruments were then switched off and the satellite relocated to a lower orbit. On June 5, 2013, the satellite's radio transmitter was switched off.
Technical specifications
Landsat 5 is an identical copy of Landsat 4 , as the satellite was originally planned as a backup. The data transmission of the images from the multispectral scanner took place with a bandwidth of 85 Mbit / s.
| technology | Landsat 4 and 5 |
|---|---|
| Scanning system | Thematic Mapper (TM) |
| Pixel size | 30 × 30 m |
| Spectral channels | 1 0.45–0.52 µm, blue-green 2 0.52–0.60 µm, green 3 0.63–0.69 µm, red 4 0.76–0.90 µm, near infrared 5 1, 55-1.75 µm, mid-infrared 7 2.08-2.35 µm, mid-infrared |
| Thermal channel | 6 10.4–12.5 µm (60 × 60 m) |
Records and awards
The satellite received an entry in the Guinness Book of Records as the longest-running earth observation satellite.
Web links
- Landsat 5 in the NSSDCA Master Catalog (English)
- Landsat 4 and 5 in eoPortal the ESA
See also
Individual evidence
- ↑ Landsat 5 in the NSSDCA Master Catalog (English)
- ↑ Landsat 5 , NASA Landsat Science, accessed September 8, 2019 (English)
- ↑ a b c Historic Landsat 5 Mission Ends - NASA, accessed on September 8, 2019 (English)
- ↑ Landsat 4 and 5 in ESA's eoPortal