, 1978
March 15, 1978
Landsat-D
EXPECTED LAUNCH DATE: Early 1981, in Space Shuttle
ORBIT: Circular, near-polar
Altitude: Not yet determined (705-914 km)
SPACECRAFT: Multiple-Mission Modular Spacecraft (MMS)
Greater attitude stability (to within 0.01° compared to 0.7° for
earlier Landsats) will improve geometric accuracy of data
PROPOSED SENSORS (with improved spatial, spectral, and radiometric resolution):
Multispectral Wavelength (um) Resolution Swath width Average no. Data rate
( 4 Scanner (MSS) scenes/day
5 bands :
green 0
red 0
solar IR 0. \ 78 m 185 km 200 15 mbps
solar IR 0. .
thermal IR 10.4-12.6 234 m
For continuity
of Landsat data
Thematic
Mapper (TM)
6 or 7*bands
blue-green 0.45-0.52
green 0.52-0.60 min 50
red 0.63-0.69 30 n 185 km max 500 120 mbps**
solar IR 0.76-0.90
solar IR 1.55-1.78
thermal IR 10.4-12.5 120 m
* Band at 2.08-2.35 yum to study rock reflectance proposed by geologists.
**Large volume of data from TM may require use of image compression techniques.
GROUND DATA SYSTEM: Will improve worldwide coverage by elininating unreliable tape
recorders and shorten time frame of delivering data to users.
(0 Direct Readout Stations (DROS): :
1 Existing, or with existing agreements - Prince Albert, Saskatchewan, and Shoe
Cove, Newfoundland, Canada; Cuiaba, Brazil; Fucino, Italy; Shahdasht, Iran;
Argentina, and India,
Being negotiated - Australia, Japan, Sweden, Upper Volta, and Zaire.
Downlinks: MSS - S-Band (2 gliz)
TM - X-Band (^8 gHz)
Tracking Data and Relay Satellite System (IDRSS): To ground station at White Sands,
New Mexico, to GSFC via Domsat for preprocessing, to EROS Data Center and other
users.
DATA AVAILABILITY: Archived and distributed to public by EROS Data Center.
FOR MORE INFORMATION: Resource and Environmental Surveys from Space with the
Thematic Mapper in the 1980's, 1976, Committee on Remote
Sensing Programs for Earth Resource Surveys, National
Research Council, available from NTIS as NRC/CORSPERS-76/1,
122 p. :
CONTACT: Dr. V. V. Salomonson, Landsat-D Project Scientist
NASA GSFC, Code 913, Creenbelt, Md. 20771
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