Landsat 7/EO-1 Comparisons

Landsat 7 EO-1
Manufacturers:
Spacecraft
Instrument

Lockheed Martin Missiles and Space
Hughes Santa Barbara Remote Sensing

Swales and Associates Inc.
MIT/Lincoln Laboratory
Mission a) Continuity of unenhanced Landsat data sufficiently consistent with previous Landsat data to allow comparisons for global and regional change detection characterization.
b) Acquire and refresh periodically an archive of generally cloud free images of all land surface
Test advanced technologies and validate in terms of:
a) maintaining Landsat-type data continuity in a timely and cost effective manner
b) instrument and spacecraft capabilities that will lower costs for future earth observation missions
c) innovative approaches to land imaging
d) cooperative ventures among industry, academia, and government agencies
e) commercial exploitation of land imaging
Instrument(s): Enhanced Thematic Mapper Plus (ETM+)
[scan mirror spectrometer]
Advanced Land Imager (ALI) [Push broom radiometer/ spectrometer];
LEISA atmospheric correction (LAC)
Mass 2200 kg 425 kg
Swath Width 185 km LAC = 185 km; ALIMS/Pan = 37 km
WIS (Wedge Imaging Spec.) = 9.6 km
GIS (Grating Imaging Spec.) = 9.6 km
Revisit Interval 16 days LAC=16 days; ALI not applicable - experimental
Orbit 705 km, sun-synchronous, 98.2 degrees inclination; Equatorial crossing time = 10:00am +/- 15 min. 705 km, sun-synchronous, 98.2 degrees inclination; Equatorial crossing time = Landsat 7 + 1 min.
Bands Spectral range (Ám): Ground Res.(m)
.450 - .515: 30
.525 - .605: 30
.630 - .690: 30
.750 - .900: 30
1.55 - 1.75: 30
10.40 - 12.50: 60
3.09 - 2.35: 30
.520 - .900: 15(pan)
Spectral range (Ám): Ground Res.(m)
.433 - .453: 30
.450 - .510: 30
.525 - .605: 30
.630 - .690: 30
.775 - .805: 30
.845 - .890: 30
1.20 - 1.30: 30
1.55 - 1.75: 30
2.08 - 2.35: 30
.480 - .680: 10(pan)
.850 - 1.60: 250(atmos. correction)
.400 - 2.50: 30(WIS = 309 bands; GIS = 233 bands)
Scene Acquisition Rate 250 - 31450 sq. km. images per day at primary receiving station Experimental technology - no more than 4 - 12025 sq. km. images per day when used in conjunction with WIS, GIS and LAC. Capable of up to 16 images per day if MS/Pan used alone
Launch Date April, 1999 December, 1999
Mission Duration 6 years 1 year

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