THEMIS signal-to-noise ratio values.
These values are published in the proposal information package that includes the THEMIS instrument. Higher signal-to-noise ratio values represent greater sensitivity. The reference is T. W. Thompson, J. Plaut, and C. Weitz (compilers), Proposal Information Package, 2001 Mars Odyssey Orbiter.
Table headings are:
-channel = channel number. There are two bands centered near 6.62 microns so they may be averaged together to increase the signal-to-noise ratio.
-center = band center in microns
-width = the full width at the half maximum of the instrument response curve, in microns
-245K = root mean square signal-to-noise ratio for a 245K blackbody. These are the values given in the reference above.
-270K = root mean square signal-to-noise ratio for a 270K blackbody. We calculated these values from the 245K values in order to have 270K values for direct comparison to other instruments.
channel center width 245K 270K
1, 2 6.62 1.01 50 114
3 7.88 1.09 110 221
4 8.56 1.18 169 319
5 9.30 1.18 190 341
6 10.11 1.10 180 309
7 11.03 1.19 200 328
8 11.78 1.07 170 270
9 12.58 0.81 130 201
10 14.96 0.86 120 174
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