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Sample Image
25 Jan 1999
Track 5
Track 12
R: 2.13 microns
G: 1.62 microns
B: 0.65 microns
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Mission Summary
Date: January 25, 1999
ER-2 Flight Number: 99-031
Deployment: TRMM-Brazil
Flight Location: Rondonia, Brazil
Principal Investigator: Anthony Guillory (MSFC)
Additional Sensors: MIR, LIP, EDOP, AMPR, VIS
Addtional Note: This mission was a TRMM satelite underpass.
Level-1B Processing Information
Level-1B Data processed by: Ames Research Center
Level-1B Data Version: #01
Level-1B Configuration: (sample file)
Calibration Type: Final, with bands 49 and 50 swapped
Calibration Version: 1.0
Status: Completed with final calibration.
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Flight Track Map
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Level-1B Browse Imagery
Straight Line Flight Tracks: 30
Scanlines Processed: 62964
Solar Azimuth and Zenith Angles
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Browse Images
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Click on the Flight Track number to load images.
Lat/Lon ranges are for the BEG-END scanline nadir pixels.
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Flight
Track |
Time_Span
(GMT) |
Heading
(Deg) |
Lat_Range
(Deg_S) |
Lon_Range
(Deg_W) |
Length
(Scanlines) |
| 01 |
19:39-19:45 |
287 |
11.59-11.41 |
58.10-58.83 |
2267 |
| 02 |
19:46-19:59 |
283 |
11.40-11.09 |
58.85-60.53 |
5117 |
| 03 |
20:01-20:06 |
200 |
11.19-11.72 |
60.70-60.95 |
1871 |
| 04 |
20:09-20:11 |
9 |
11.77-11.61 |
60.80-60.80 |
575 |
| 05 |
20:11-20:16 |
9 |
11.60-11.07 |
60.79-60.77 |
1846 |
| 06 |
20:19-20:25 |
197 |
11.13-11.75 |
60.64-60.91 |
2170 |
| 07 |
20:28-20:34 |
356 |
11.74-11.13 |
60.78-60.89 |
2077 |
| 08 |
20:38-20:42 |
142 |
11.29-11.61 |
61.10-60.90 |
1372 |
| 09 |
20:44-20:46 |
215 |
11.77-11.96 |
60.91-61.06 |
743 |
| 10 |
20:46-20:53 |
228 |
11.99-12.49 |
61.11-61.71 |
2395 |
| 11 |
20:57-21:06 |
51 |
12.40-11.87 |
61.60-60.98 |
3074 |
| 12 |
21:10-21:19 |
242 |
11.79-12.28 |
60.94-61.93 |
3362 |
| 13 |
21:23-21:30 |
62 |
12.36-12.07 |
62.08-61.50 |
2464 |
| 14 |
21:32-21:42 |
294 |
11.90-11.47 |
61.51-62.59 |
3593 |
| 15 |
21:42-21:47 |
297 |
11.45-11.22 |
62.65-63.19 |
1872 |
| 16 |
21:55-22:05 |
62 |
11.33-10.80 |
63.26-62.41 |
3742 |
| 17 |
22:08-22:15 |
166 |
10.83-11.63 |
62.18-62.06 |
2682 |
| 18 |
22:15-22:17 |
162 |
11.66-11.85 |
62.05-62.01 |
662 |
| 19 |
22:17-22:20 |
158 |
11.91-12.23 |
61.99-61.90 |
1130 |
| 20 |
22:21-22:23 |
157 |
12.33-12.49 |
61.86-61.81 |
575 |
| 21 |
22:26-22:27 |
317 |
12.39-12.28 |
61.69-61.80 |
494 |
| 22 |
22:31-22:32 |
316 |
12.04-11.92 |
62.07-62.20 |
562 |
| 23 |
22:36-22:39 |
160 |
12.19-12.51 |
62.38-62.30 |
1105 |
| 24 |
22:41-22:46 |
36 |
12.50-12.11 |
62.15-61.89 |
1659 |
| 25 |
22:51-22:54 |
182 |
12.09-12.50 |
62.06-62.11 |
1367 |
| 26 |
22:57-23:02 |
58 |
12.43-12.15 |
62.24-61.81 |
1802 |
| 27 |
23:06-23:09 |
202 |
12.07-12.38 |
62.00-62.15 |
1098 |
| 28 |
23:14-23:19 |
75 |
12.33-12.22 |
62.15-61.72 |
1635 |
| 29 |
23:19-23:32 |
73 |
12.20-11.85 |
61.69-60.42 |
4871 |
| 30 |
23:32-23:45 |
74 |
11.85-11.49 |
60.42-59.19 |
4782 |
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Images 01 through 30 in sequence |
Data Evalutation
1) Very extensive but intermitent GPS navigation errors during this flight.
2) Severe digital to analog converter (DAC) shifts during this flight, particularly evident in channel 43. Occasionally evident in channel 45. In these channels (43 and 45) BB1 was saturating at 65535, resulting washout and banding artifacts. This occured over a particularly well developed thunder storm. Cloud tops were very cold. Ambient air temps reported to be below -75 C. Dynamic range is very low in these areas and radiance values aproach 0. Also, the DAC shifts seen in channels 43 and 45 are evident in the level1b hdf data.
3) Level1-b hdf data (track 20) showed that channels 10 and 16 had some washout similar to that seen in channels 43 and 45.
Level-1B Data Distribution
NASA Goddard Space Flight Center DAAC
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