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- Problems affecting data during the entire Campaign
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There were a number of MAS port 4 (channels 42-50) failures during SCAR-B.
This was due to mechanical problems with the
instrument which occurred thoughout the campaign.
Data gaps in the port 4 bands (bands 42-50) exist in most of the days during SCAR-B.
(Note that when port 4 fails, the calibration coefficients will be missing and the
Calibrated Radiance Data will be 0.)
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When the plane comes out of a steep roll into a straight and level
flight track it sometimes takes several seconds for the MAS instrument to
fully stabilize.
This could cause some smearing of data at the very beginning of a few
straight-line flight tracks. Generally, this only occurs in the first
20 scanlines or so.
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In every 3.9, 3.7 and 1.6 micron image, there is a streak in the
that runs the entire length of the flight line.
It is located at pixels 477-478 (note: pixel range is 1-716).
This was due to regular (periodic) electrical noise from
the insturment being passed to the data recording system.
- Problems noted during specific flights
- August 27, 1995 (Flight #95-165)
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Slice 3 / Track 3:
Numerous sections of data are missing in bands #42-#50
due to port 4 failures on the MAS
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Slice 3 / Track 4:
Numerous sections of data are missing in bands #42-#50
due to port 4 failures on the MAS
- September 1, 1995 (Flight #95-167)
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Slice 4 / Line 1:
There are broad areas of poorly calibrated data
(which can be seen as broad dark and light bands
in the browse imagery) in the port 4 bands (bands 42-50).
- September 4, 1995 (Flight #95-168)
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Slice 2 / Line 5:
There are broad areas of poorly calibrated data
(which can be seen as broad dark and light bands
in the browse imagery) in the port 4 bands (bands 42-50).
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Slice 3 / Lines 2,3,4:
Large areas where data from the 11 and 12 uM bands
are missing, also many areas where banding was noted
across the image. In slice 2 the 3.7 uM band gives
a very different response than 3.9. In slice 4, sections
of 3.9 and 3.7 are missing.
- September 7, 1995 (Flight #95-169)
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Slice 2 / Line 3:
A large area of data missing for the 11 and 12 uM bands.
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Slice 2 / Line 4:
A large area of data missing for the 3.7, 3.9, 11 and
12 uM bands.
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Slice 2 / Line 5:
Large areas of data missing in the 11 uM band.
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