Eight spectral bands, including a pan and thermal band:
Band 1 Visible (0.45 - 0.52 µm) 30 m,
Band 2 Visible (0.52 - 0.60 µm) 30 m,
Band 3 Visible (0.63 - 0.69 µm) 30 m,
Band 4 Near-Infrared (0.77 - 0.90 µm) 30 m,
Band 5 Near-Infrared (1.55 - 1.75 µm) 30 m,
Band 6 Thermal (10.40 - 12.50 µm) 60 m Low Gain / High Gain,
Band 7 Mid-Infrared (2.08 - 2.35 µm) 30 m,
Band 8 Panchromatic (PAN) (0.52 - 0.90 µm) 15 m,
Ground Sampling Interval (pixel size): 30 m reflective, 60 m thermal.
Added the Band 6 Low and High gain 60 m thermal bands.
On-board calibration was added to Landsat 7: a Full Aperture Solar Calibrator (FASC) and a Partial Aperture Solar Calibrator (PASC), in addition to the 2 calibration lamps.
Brief Insight Into The Landsat 7 ETM Satellite - 15 April 1999 To Present.
National Oceanic and Atmospheric Administration (NOAA) (initial participant).
Department of the Interior (DOI) U.S. Geological Survey (USGS).
Spacecraft bus: Lockheed Martin Missiles & Space.
Enhanced Thematic Mapper Plus (ETM+): Hughes Santa Barbara Remote Sensing.
Date: April 15, 1999.
Vehicle: Delta II.
Launched by: NASA.
Site: Western Test Range at Vandenberg Air Force Base, California.
Direct Downlink with Solid State Recorders (SSR).
Data rate: 150 Mbps.
Power provided by a single Sun-tracking solar array and two 50 Ampere-Hour (AHr), Nickel Cadmium (NiCd) batteries.
Attitude control provided through four reaction wheels (pitch, yaw, roll, and skew); three 2-channel gyros with celestial drift updating; a static Earth sensor; a 1750 processor; and torque rods and magnetometers for momentum uploading.
Orbit control and backup momentum unloading provided through a blow-down monopropellant hydrazine system with a single tank containing 270 pounds of hydrazine, associated plumbing, and twelve 1-pound-thrust jets.