Satellite Orbits and Uses NIS

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Heavy Rainfall

High density winds

Fog/low cloud

In-flight Icing

Volcanic ash detection

Fire detection

Slide 19

Geostationary Satellites for Weather

http://www.ssec.wisc.edu/data/geo/

http://www.rap.ucar.edu/weather/satellite/

http://www.ssec.wisc.edu/data/volcano.html

Slide 20

Geostationary

Slide 21

24/27 Satellites Used GPS Global Positioning System

GPS Receiver Used in Search and Rescue Missions

GPS satellites orbit Earth in 12 hours

Slide 22

Ground Tracks: Westward Regression

0

30

-30

-60

-90

-120

A

B

C

A - time zero B - after one orbit C - after two orbits

60

Slide 23

Ground tracks: Inclination to equator

60

30

0

30

60

45N

45S

Inclination = 45 degrees Eccentricity ~ 0

Slide 24

Ground Track of Geostationary orbit with 450 angle to equator

Ground Track Slides Courtesy of Major David French

Slide 25

Ground Tracks: with eccentricity

Ground Track for Molnyia orbit eccentricity = .7252

Slide 26

Geosynchronous

Slide 27

e = 0

e = 0

i = 0°

Geosynchronous

e = 0.4

w = 180°

e = 0.6

w = 90°

Slide 28

Meteorological satellites

For monitoring the environment, there are three types namely the:

Weather satellites, GEO

Meteorological climate research, Polar orbit

Earth Resource satellites (ERS)

Research and Development satellites (R&D).

28

Slide 29

29

Orbit of a Polar-Orbiting Satellite

http://coastwatch.glerl.noaa.gov/modis/modis.cgi/modis?region=s&page=1

Slide 30

LEO orbit at a height of about 500km (this is quite low!)

They take about 90 minutes to do one complete orbit.

These satellites are used to monitor things like climate research and enemy troop movements.

Polar Orbits are also called Monitoring satellites