Satellite Orbits and Uses NIS

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Slide 31

Poes

Defense Meteorological Satellite Program (DMSP)

Sensors of interest

Special Sensor Microwave / Imager (SSM/I)

Special Sensor Microwave / Temperature (SSM/T) – Atmospheric Temperature Profiler

SSM/T2 – Atmospheric Water Vapor Profiler

http://dmsp.ngdc.noaa.gov/dmsp.html

Slide 32

Conical Scanning –SSM/I

Polar Satellite Products for the Operational Forecaster – COMET CD

Slide 33

Orbital Coverage

Introduction to POES data and products – COMET/VISIT teletraining

Satellite makes one orbit (360°) in about 100 min; i.e., it goes about 3.6°/min, or about 10° in 3 minutes.

With a knowledge of which way the satellite is moving and how fast it is moving, one can estimate viewing time at a particular point.

Slide 34

AMSU coverage (2200 km swath)

http://amsu.cira.colostate.edu/

Slide 35

SSMI coverage (1400 km swath)

Example from NOAA’s Marine Observing Systems Team Web Page

http://manati.orbit.nesdis.noaa.gov/doc/ssmiwinds.html

swath

Slide 36

AVHRR Products

Sea Surface Temperature (SST)

Normalized Difference Vegetation Index (NDVI)

Atmospheric aerosols

Volcanic Ash detection

Fire detection

SST

NDVI

Aerosols

Fires

Volcanic Ash

Slide 37

AMSU/SSMI Products

Total Precipitable Water (TPW)

Cloud Liquid Water (CLW)

Rain rate

Snow and Ice cover

TPW

CLW

Rain rate

Snow cover

Ice cover

http://amsu.cira.colostate.edu/

Slide 38

Space Debris

According to the U.S. Space Command (USSC), there are more than 8,000 objects larger than a softball now circling the globe.

Of these, over 2000 are satellites (working and not).

Slide 39

Diagram of Kepler’s Second Law

Equal Areas in Equal times: The line joining the planet to the Sun sweeps out equal areas in equal times as the planet travels around the ellipse.

Slide 40

ORBIT CLASSIFICATIONS Eccentricity

Eccentricity = c/a

Slide 41