nasa/jpl/asu themis intro: light, camera, action!
DESCRIPTION
Mars Odyssey NASA/JPLTRANSCRIPT
NASA/JPL/ASU
THEMIS Intro:
Light, camera, action!
NASA/JPL
Mars Odyssey
NASA/JPL
MARS ODYSSEYArrived at Mars October 2001
Mapping Mars since February 2002
NASA/JPL
Exploring for 5 years!
NASA/JPL
THEMIS
NASA/JPL
Th________________
Em_______________
I_________________
S_________________
THEMIS
NASA/JPL
Thermal
Emission
Imaging
System
Thermal Emission Imaging System (THEMIS)
2-IN-1 CAMERA1. Visible Imaging (VIS)
– Visible-light images with 18 meters per pixel resolution.
2. Infrared Imaging (IR)– The entire planet will be
mapped in the infrared at 100 meters per pixel resolution.
NASA/JPL
It’s all about light – The Electromagnetic Spectrum
The SUN radiates and creates different types of
LIGHT!
Higher energy Lower energy
THEMIS VisibleFilters
There are 10 IR Filters/bands
BLUE GREEN RED IR 1 IR 2
What Does a filter do?
What filter would you use to take an image of Mars?
THEMIS RAW VIS IMAGE
Each framelet is taken once per second.
Each framelet is shifted with respect to the others because Mars rotates underneath the spacecraft.
18 km
19 framelets
NASA/JPL/MSSS
How much of Mars is imaged in a THEMIS image?
What is a pixel?
___m
___m
18
18