Satellites

Question 1

Orbits Used by RS Satellites

Answer 1

High Earth Orbit (Geostationary),
Medium Orbit (GPS),
Low Earth Orbit (Near-polar/Sun-Synchronous)

Question 2

Geostationary Orbit

Answer 2

Sat is always looking at the same spot on the earth, great for weather observation

Question 3

GOES general

Answer 3

Geostationary Operational Environmental Sat. by NOAA for weather, 3 or 4 sats overlap to catch NA weather

Question 4

Near-polar orbit

Answer 4

North-to-South path, several passes around Earth a day

Question 5

Sun-Synchronous Orbit

Answer 5

a type of near-polar orbit
Same area at the same local time (thus similar EMR in image)

Question 6

Multispectal Scanner (MSS)

Answer 6

Sensor on Landsat 1-5
7 bands
Spatial res = 60meters (resampled)

Question 7

Thematic Mapper (TM)

Answer 7

Sensor on Landsat 4 & 5
7 bands
Spatial res = 30m
Band 6 was 120m

Question 8

Enhanced Thematic Mapper Plus (ETM+)

Answer 8

Landsat 7
8 bands (added panchro)
30m

Question 9

Operational Land Imager (OLI)

Answer 9

Landsat 8 and 9 (but new)
bands 1-9
30m
band 8 panchro is 15m

Question 10

Thermal Infrared Sensor (TIRS)

Answer 10

Landsat 8 and 9 (but new)
bands 10 and 11
100m

Question 11

Landsat special bands

Answer 11

Coastal/Aerosol in band 1
Cirrus for clouds in band 9
2 TIRs in band 10 and 11

Question 12

Worldwide Reference System (WRS)

Answer 12

The catalog system for Landsat scenes
Paths and Rows

Question 13

MODIS - Res and General

Answer 13

Moderate Resolution Imaging Spetroradiometer
36 bands,
Varying spatial res 250-1k m
1 - 2 day revisit