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Figure 1. Landsat 5 Participants

Landsat 5 was a satellite launched in 1984 that was jointly operated by NASA and NOAA. It carried the Multispectral Scanner (MSS) and Thematic Mapper (TM) sensors to capture imagery of Earth's surface in multiple wavelengths. Landsat 5 orbited at an altitude of 705 km with an inclination of 98.2 degrees, repeating its coverage of the globe every 16 days with a swath width of 185 km. It provided moderate resolution imagery to scientists and researchers until its decommissioning in 2013 after nearly 30 years of operation.

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38 views2 pages

Figure 1. Landsat 5 Participants

Landsat 5 was a satellite launched in 1984 that was jointly operated by NASA and NOAA. It carried the Multispectral Scanner (MSS) and Thematic Mapper (TM) sensors to capture imagery of Earth's surface in multiple wavelengths. Landsat 5 orbited at an altitude of 705 km with an inclination of 98.2 degrees, repeating its coverage of the globe every 16 days with a swath width of 185 km. It provided moderate resolution imagery to scientists and researchers until its decommissioning in 2013 after nearly 30 years of operation.

Uploaded by

Wahyu Nur Ismail S
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Figure 1.

Landsat 5

Participants

 NASA
 National Oceanic and Atmospheric Administration (NOAA)
 Earth Observation Satellite Company (EOSAT)
 Department of the Interior (DOI) U.S. Geological Survey (USGS)
 Manufacturers: General Electric (GE) Astrospace and Hughes Santa Barbara Remote
Sensing

Launch

 Date: March 1, 1984


 Vehicle: Delta 3920
 Launched by: NASA
 Site: Vandenberg Air Force Base, California

Spacecraft

 3-axis stabilized, zero momentum with control of 0.01 deg using reaction wheels
 Aluminum with graphite struts
 Hydrazine propulsion system
 Single solar array with 1-axis articulation
 Three Nickel Cadmium (NiCd) batteries provide 100 Ampere-Hour (AHr) total
 Retractable boom (4 m long) with 2 powered joints supports the articulated High Gain
Antenna, which downlinks data via Tracking and Data Relay Satellite System (TDRSS)
 Communications system uses S,X,L, and Ku Bands
 Weight: approximately 4,800 lbs (2,200 kg)

Communications

 Direct downlink with TDRSS


 Data rate: 85 Mbps
 Quantisation: 8 bit (256 levels)

Orbit

 Worldwide Reference System-2 (WRS-2) path/row system


 Circular, sun-synchronous, near-polar orbit at an altitude of 705 km (438 mi)
 Inclined at 98.2°
 Repeat cycle: 16 days
 Swath width: 185 km (115 mi)
 Equatorial crossing time: 9:45 a.m. +/- 15 minutes

Sensors
Multispectral Scanner (MSS)
Acquisitions of Landsat 5 MSS data over the United States ceased in 1992; global acquisitions
ended in 1999. Limited acquisitions were made from June 2012 through January 2013, after the
loss of the TM sensor on the satellite.

 Four spectral bands (identical to Landsat 1 and 2):


o Band 4 Visible green (0.5 to 0.6 µm)
o Band 5 Visible red (0.6 to 0.7 µm)
o Band 6 Near-Infrared (0.7 to 0.8 µm)
o Band 7 Near-Infrared (0.8 to 1.1 µm)
 Six detectors for each spectral band provided six scan lines on each active scan
 Ground Sampling Interval (pixel size): 57 x 79 m

Thematic Mapper (TM)

 Added the mid-range infrared to the data


 Seven spectral bands, including a thermal band:
o Band 1 Visible (0.45 - 0.52 µm) 30 m
o Band 2 Visible (0.52 - 0.60 µm) 30 m
o Band 3 Visible (0.63 - 0.69 µm) 30 m
o Band 4 Near-Infrared (0.76 - 0.90 µm) 30 m
o Band 5 Near-Infrared (1.55 - 1.75 µm) 30 m
o Band 6 Thermal (10.40 - 12.50 µm) 120 m
o Band 7 Mid-Infrared (2.08 - 2.35 µm) 30 m
 Ground Sampling Interval (pixel size): 30 m reflective, 120 m thermal

Other Characteristics

 Scene size: 170 km x 185 km (106 mi x 115 mi)


 Design Life: Minimum of 3 years

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