DTHDR.TXT: DATA TAKE HEADER FILE 1 2 3 4 5 6 7 1234567890123456789012345678901234567890123456789012345678901234567890123456 Data Take ID: 19.50 Site Name: Lake Chad, Sahara Chad Site ID: GS5 Mission ID: SRL-1 Sensor ID: SIR-C Radar Data Acquisition Mode: SIR-C 11 / X-SAR Antenna Direction: Right Looking Orbit Direction: Descending Pulse Bandwidth (MHz): 20 Pulse Duration (micro sec): 34 Quantization Format: BFPQ Beam Spoiling Mode: 0 PRF (Hz): 1395.000 Frequency Band: L Carrier Frequency (GHz): 1.249 Wavelength (m): 0.240 Polarization Channel: HH Product Type: Survey Image Data Take Start GMT: 1994/100:14:17:35.9 Data Take End GMT: 1994/100:14:25:05.4 Data Take Duration (min:sec): 7:31 Latitude at Start GMT: 25 deg 27.5' N Longitude at Start GMT: 6 deg 6.2' E Latitude at End GMT: 0 deg 20.4' N Longitude at End GMT: 22 deg 0.9' E Center Incidence Angle (deg): 30.9 Track Angle at Image Center: 148.6 deg E of True North Along-Track Image Size (km): 3265.6 Cross-Track Image Size (km): 54.2 Along-Track Resolution (m): 95 Cross-Track Resolution (m): 62 Along-Track Pixel Spacing (m): 50 Cross-Track Pixel Spacing (m): 50 Radiometric Representation: 8-bit Amplitude Geometric Reresentation: Ground Range Signal-to-Noise Ratio (dB): 18.9 Bit Error Rate (exponent): 0.0 Number of Looks: 4.0 Image Segment Size (km): 100 Image Segments: 33 Bytes per Record: 2000 Records per Segment: 1234 Product Generation Date: Sep 15, 1994 Processing Facility: JPL Processor S/W Version: 1.2.4 Available Standard Products: LHH, LHV, CHH, CHV, XVV Processing Run Number: 11205 Comments: SEG_01 Lat/Long Near Early: 25 deg 36.4' N 6 deg 20.3' E Lat/Long Far Early: 25 deg 18.7' N 5 deg 52.5' E GMT Center 1994/100:14:17:42.7 Lat/Long Center: 25 deg 5.3' N 6 deg 23.2' E Lat/Long Near Late: 24 deg 51.8' N 6 deg 54.0' E Lat/Long Far Late: 24 deg 34.3' N 6 deg 26.3' E SEG_02 Lat/Long Near Early: 24 deg 51.8' N 6 deg 54.0' E Lat/Long Far Early: 24 deg 34.3' N 6 deg 26.3' E GMT Center 1994/100:14:17:56.5 Lat/Long Center: 24 deg 20.7' N 6 deg 56.7' E Lat/Long Near Late: 24 deg 7.1' N 7 deg 27.2' E Lat/Long Far Late: 23 deg 49.8' N 6 deg 59.7' E SEG_03 Lat/Long Near Early: 24 deg 7.1' N 7 deg 27.2' E Lat/Long Far Early: 23 deg 49.8' N 6 deg 59.7' E GMT Center 1994/100:14:18:10.3 Lat/Long Center: 23 deg 36.0' N 7 deg 29.8' E Lat/Long Near Late: 23 deg 22.2' N 8 deg 0.0' E Lat/Long Far Late: 23 deg 5.1' N 7 deg 32.7' E SEG_04 Lat/Long Near Early: 23 deg 22.2' N 8 deg 0.0' E Lat/Long Far Early: 23 deg 5.1' N 7 deg 32.7' E GMT Center 1994/100:14:18:24.0 Lat/Long Center: 22 deg 51.1' N 8 deg 2.5' E Lat/Long Near Late: 22 deg 37.2' N 8 deg 32.4' E Lat/Long Far Late: 22 deg 20.2' N 8 deg 5.2' E SEG_05 Lat/Long Near Early: 22 deg 37.2' N 8 deg 32.4' E Lat/Long Far Early: 22 deg 20.2' N 8 deg 5.2' E GMT Center 1994/100:14:18:37.8 Lat/Long Center: 22 deg 6.1' N 8 deg 34.8' E Lat/Long Near Late: 21 deg 52.0' N 9 deg 4.4' E Lat/Long Far Late: 21 deg 35.2' N 8 deg 37.4' E SEG_06 Lat/Long Near Early: 21 deg 52.0' N 9 deg 4.4' E Lat/Long Far Early: 21 deg 35.2' N 8 deg 37.4' E GMT Center 1994/100:14:18:51.6 Lat/Long Center: 21 deg 20.9' N 9 deg 6.7' E Lat/Long Near Late: 21 deg 6.7' N 9 deg 36.0' E Lat/Long Far Late: 20 deg 50.0' N 9 deg 9.2' E SEG_07 Lat/Long Near Early: 21 deg 6.7' N 9 deg 36.0' E Lat/Long Far Early: 20 deg 50.0' N 9 deg 9.2' E GMT Center 1994/100:14:19:05.3 Lat/Long Center: 20 deg 35.6' N 9 deg 38.2' E Lat/Long Near Late: 20 deg 21.2' N 10 deg 7.3' E Lat/Long Far Late: 20 deg 4.7' N 9 deg 40.6' E SEG_08 Lat/Long Near Early: 20 deg 21.2' N 10 deg 7.3' E Lat/Long Far Early: 20 deg 4.7' N 9 deg 40.6' E GMT Center 1994/100:14:19:19.1 Lat/Long Center: 19 deg 50.2' N 10 deg 9.4' E Lat/Long Near Late: 19 deg 35.6' N 10 deg 38.2' E Lat/Long Far Late: 19 deg 19.3' N 10 deg 11.6' E SEG_09 Lat/Long Near Early: 19 deg 35.6' N 10 deg 38.2' E Lat/Long Far Early: 19 deg 19.3' N 10 deg 11.6' E GMT Center 1994/100:14:19:32.9 Lat/Long Center: 19 deg 4.7' N 10 deg 40.2' E Lat/Long Near Late: 18 deg 50.0' N 11 deg 8.8' E Lat/Long Far Late: 18 deg 33.8' N 10 deg 42.4' E SEG_10 Lat/Long Near Early: 18 deg 50.0' N 11 deg 8.8' E Lat/Long Far Early: 18 deg 33.8' N 10 deg 42.4' E GMT Center 1994/100:14:19:46.7 Lat/Long Center: 18 deg 19.0' N 11 deg 10.8' E Lat/Long Near Late: 18 deg 4.2' N 11 deg 39.1' E Lat/Long Far Late: 17 deg 48.1' N 11 deg 12.8' E SEG_11 Lat/Long Near Early: 18 deg 4.2' N 11 deg 39.1' E Lat/Long Far Early: 17 deg 48.1' N 11 deg 12.8' E GMT Center 1994/100:14:20:00.4 Lat/Long Center: 17 deg 33.2' N 11 deg 41.0' E Lat/Long Near Late: 17 deg 18.3' N 12 deg 9.1' E Lat/Long Far Late: 17 deg 2.4' N 11 deg 42.9' E SEG_12 Lat/Long Near Early: 17 deg 18.3' N 12 deg 9.1' E Lat/Long Far Early: 17 deg 2.4' N 11 deg 42.9' E GMT Center 1994/100:14:20:14.2 Lat/Long Center: 16 deg 47.3' N 12 deg 10.9' E Lat/Long Near Late: 16 deg 32.3' N 12 deg 38.9' E Lat/Long Far Late: 16 deg 16.5' N 12 deg 12.8' E SEG_13 Lat/Long Near Early: 16 deg 32.3' N 12 deg 38.9' E Lat/Long Far Early: 16 deg 16.5' N 12 deg 12.8' E GMT Center 1994/100:14:20:28.0 Lat/Long Center: 16 deg 1.3' N 12 deg 40.6' E Lat/Long Near Late: 15 deg 46.2' N 13 deg 8.3' E Lat/Long Far Late: 15 deg 30.5' N 12 deg 42.4' E SEG_14 Lat/Long Near Early: 15 deg 46.2' N 13 deg 8.3' E Lat/Long Far Early: 15 deg 30.5' N 12 deg 42.4' E GMT Center 1994/100:14:20:41.7 Lat/Long Center: 15 deg 15.3' N 13 deg 10.0' E Lat/Long Near Late: 14 deg 60.0' N 13 deg 37.6' E Lat/Long Far Late: 14 deg 44.4' N 13 deg 11.7' E SEG_15 Lat/Long Near Early: 14 deg 60.0' N 13 deg 37.6' E Lat/Long Far Early: 14 deg 44.4' N 13 deg 11.7' E GMT Center 1994/100:14:20:55.5 Lat/Long Center: 14 deg 29.1' N 13 deg 39.2' E Lat/Long Near Late: 14 deg 13.7' N 14 deg 6.5' E Lat/Long Far Late: 13 deg 58.3' N 13 deg 40.8' E SEG_16 Lat/Long Near Early: 14 deg 13.7' N 14 deg 6.5' E Lat/Long Far Early: 13 deg 58.3' N 13 deg 40.8' E GMT Center 1994/100:14:21:09.3 Lat/Long Center: 13 deg 42.8' N 14 deg 8.1' E Lat/Long Near Late: 13 deg 27.3' N 14 deg 35.3' E Lat/Long Far Late: 13 deg 12.0' N 14 deg 9.6' E SEG_17 Lat/Long Near Early: 13 deg 27.3' N 14 deg 35.3' E Lat/Long Far Early: 13 deg 12.0' N 14 deg 9.6' E GMT Center 1994/100:14:21:23.0 Lat/Long Center: 12 deg 56.5' N 14 deg 36.8' E Lat/Long Near Late: 12 deg 40.9' N 15 deg 3.9' E Lat/Long Far Late: 12 deg 25.7' N 14 deg 38.3' E SEG_18 Lat/Long Near Early: 12 deg 40.9' N 15 deg 3.9' E Lat/Long Far Early: 12 deg 25.7' N 14 deg 38.3' E GMT Center 1994/100:14:21:36.8 Lat/Long Center: 12 deg 10.1' N 15 deg 5.3' E Lat/Long Near Late: 11 deg 54.4' N 15 deg 32.2' E Lat/Long Far Late: 11 deg 39.3' N 15 deg 6.7' E SEG_19 Lat/Long Near Early: 11 deg 54.4' N 15 deg 32.2' E Lat/Long Far Early: 11 deg 39.3' N 15 deg 6.7' E GMT Center 1994/100:14:21:50.6 Lat/Long Center: 11 deg 23.6' N 15 deg 33.6' E Lat/Long Near Late: 11 deg 7.9' N 16 deg 0.4' E Lat/Long Far Late: 10 deg 52.8' N 15 deg 35.0' E SEG_20 Lat/Long Near Early: 11 deg 7.9' N 16 deg 0.4' E Lat/Long Far Early: 10 deg 52.8' N 15 deg 35.0' E GMT Center 1994/100:14:22:04.3 Lat/Long Center: 10 deg 37.0' N 16 deg 1.7' E Lat/Long Near Late: 10 deg 21.2' N 16 deg 28.4' E Lat/Long Far Late: 10 deg 6.2' N 16 deg 3.1' E SEG_21 Lat/Long Near Early: 10 deg 21.2' N 16 deg 28.4' E Lat/Long Far Early: 10 deg 6.2' N 16 deg 3.1' E GMT Center 1994/100:14:22:18.1 Lat/Long Center: 9 deg 50.4' N 16 deg 29.7' E Lat/Long Near Late: 9 deg 34.5' N 16 deg 56.3' E Lat/Long Far Late: 9 deg 19.6' N 16 deg 31.0' E SEG_22 Lat/Long Near Early: 9 deg 34.5' N 16 deg 56.3' E Lat/Long Far Early: 9 deg 19.6' N 16 deg 31.0' E GMT Center 1994/100:14:22:31.9 Lat/Long Center: 9 deg 3.8' N 16 deg 57.5' E Lat/Long Near Late: 8 deg 47.8' N 17 deg 24.0' E Lat/Long Far Late: 8 deg 33.0' N 16 deg 58.7' E SEG_23 Lat/Long Near Early: 8 deg 47.8' N 17 deg 24.0' E Lat/Long Far Early: 8 deg 33.0' N 16 deg 58.7' E GMT Center 1994/100:14:22:45.6 Lat/Long Center: 8 deg 17.0' N 17 deg 25.2' E Lat/Long Near Late: 8 deg 1.0' N 17 deg 51.5' E Lat/Long Far Late: 7 deg 46.2' N 17 deg 26.4' E SEG_24 Lat/Long Near Early: 8 deg 1.0' N 17 deg 51.5' E Lat/Long Far Early: 7 deg 46.2' N 17 deg 26.4' E GMT Center 1994/100:14:22:59.4 Lat/Long Center: 7 deg 30.3' N 17 deg 52.7' E Lat/Long Near Late: 7 deg 14.2' N 18 deg 19.0' E Lat/Long Far Late: 6 deg 59.5' N 17 deg 53.9' E SEG_25 Lat/Long Near Early: 7 deg 14.2' N 18 deg 19.0' E Lat/Long Far Early: 6 deg 59.5' N 17 deg 53.9' E GMT Center 1994/100:14:23:13.2 Lat/Long Center: 6 deg 43.4' N 18 deg 20.2' E Lat/Long Near Late: 6 deg 27.3' N 18 deg 46.3' E Lat/Long Far Late: 6 deg 12.6' N 18 deg 21.3' E SEG_26 Lat/Long Near Early: 6 deg 27.3' N 18 deg 46.3' E Lat/Long Far Early: 6 deg 12.6' N 18 deg 21.3' E GMT Center 1994/100:14:23:26.9 Lat/Long Center: 5 deg 56.6' N 18 deg 47.5' E Lat/Long Near Late: 5 deg 40.4' N 19 deg 13.6' E Lat/Long Far Late: 5 deg 25.8' N 18 deg 48.6' E SEG_27 Lat/Long Near Early: 5 deg 40.4' N 19 deg 13.6' E Lat/Long Far Early: 5 deg 25.8' N 18 deg 48.6' E GMT Center 1994/100:14:23:40.7 Lat/Long Center: 5 deg 9.7' N 19 deg 14.7' E Lat/Long Near Late: 4 deg 53.5' N 19 deg 40.7' E Lat/Long Far Late: 4 deg 38.9' N 19 deg 15.7' E SEG_28 Lat/Long Near Early: 4 deg 53.5' N 19 deg 40.7' E Lat/Long Far Early: 4 deg 38.9' N 19 deg 15.7' E GMT Center 1994/100:14:23:54.5 Lat/Long Center: 4 deg 22.7' N 19 deg 41.8' E Lat/Long Near Late: 4 deg 6.5' N 20 deg 7.8' E Lat/Long Far Late: 3 deg 52.0' N 19 deg 42.9' E SEG_29 Lat/Long Near Early: 4 deg 6.5' N 20 deg 7.8' E Lat/Long Far Early: 3 deg 52.0' N 19 deg 42.9' E GMT Center 1994/100:14:24:08.2 Lat/Long Center: 3 deg 35.8' N 20 deg 8.9' E Lat/Long Near Late: 3 deg 19.5' N 20 deg 34.9' E Lat/Long Far Late: 3 deg 5.0' N 20 deg 9.9' E SEG_30 Lat/Long Near Early: 3 deg 19.5' N 20 deg 34.9' E Lat/Long Far Early: 3 deg 5.0' N 20 deg 9.9' E GMT Center 1994/100:14:24:22.0 Lat/Long Center: 2 deg 48.8' N 20 deg 35.9' E Lat/Long Near Late: 2 deg 32.5' N 21 deg 1.8' E Lat/Long Far Late: 2 deg 18.0' N 20 deg 36.9' E SEG_31 Lat/Long Near Early: 2 deg 32.5' N 21 deg 1.8' E Lat/Long Far Early: 2 deg 18.0' N 20 deg 36.9' E GMT Center 1994/100:14:24:35.8 Lat/Long Center: 2 deg 1.8' N 21 deg 2.9' E Lat/Long Near Late: 1 deg 45.5' N 21 deg 28.8' E Lat/Long Far Late: 1 deg 31.0' N 21 deg 3.9' E SEG_32 Lat/Long Near Early: 1 deg 45.5' N 21 deg 28.8' E Lat/Long Far Early: 1 deg 31.0' N 21 deg 3.9' E GMT Center 1994/100:14:24:49.5 Lat/Long Center: 1 deg 14.8' N 21 deg 29.8' E Lat/Long Near Late: 0 deg 58.4' N 21 deg 55.7' E Lat/Long Far Late: 0 deg 44.0' N 21 deg 30.8' E SEG_33 Lat/Long Near Early: 0 deg 58.4' N 21 deg 55.7' E Lat/Long Far Early: 0 deg 44.0' N 21 deg 30.8' E GMT Center 1994/100:14:25:03.3 Lat/Long Center: 0 deg 27.7' N 21 deg 56.7' E Lat/Long Near Data End: 0 deg 27.6' N 22 deg 13.3' E Lat/Long Far Data End: 0 deg 13.1' N 21 deg 48.4' E