DTHDR.TXT: DATA TAKE HEADER FILE 1 2 3 4 5 6 7 1234567890123456789012345678901234567890123456789012345678901234567890123456 Data Take ID: 140.10 Site Name: Siwa/Largeau, Sahara Chad Site ID: GS7 Mission ID: SRL-1 Sensor ID: SIR-C Radar Data Acquisition Mode: SIR-C 11 / X-SAR Antenna Direction: Right Looking Orbit Direction: Ascending Pulse Bandwidth (MHz): 20 Pulse Duration (micro sec): 34 Quantization Format: BFPQ Beam Spoiling Mode: 4 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: 1994/108:00:42:47.8 Data Take End GMT: 1994/108:00:50:17.8 Data Take Duration (min:sec): 7:32 Latitude at Start GMT: 7 deg 46.1' N Longitude at Start GMT: 12 deg 17.0' E Latitude at End GMT: 32 deg 26.4' N Longitude at End GMT: 29 deg 48.0' E Center Incidence Angle (deg): 32.0 Track Angle at Image Center: 33.2 deg E of True North Along-Track Image Size (km): 3280.3 Cross-Track Image Size (km): 52.4 Along-Track Resolution (m): 90 Cross-Track Resolution (m): 60 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): 5.6 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: 1198 Product Generation Date: Sep 26, 1994 Processing Facility: JPL Processor S/W Version: 1.2.4 Available Standard Products: LHH, LHV, CHH, CHV, XVV Processing Run Number: 10926 Comments: SEG_01 Lat/Long Near Early: 7 deg 53.1' N 12 deg 5.2' E Lat/Long Far Early: 7 deg 39.1' N 12 deg 29.0' E GMT Center 1994/108:00:42:54.6 Lat/Long Center: 8 deg 9.5' N 12 deg 30.8' E Lat/Long Near Late: 8 deg 39.9' N 12 deg 32.7' E Lat/Long Far Late: 8 deg 25.8' N 12 deg 56.6' E SEG_02 Lat/Long Near Early: 8 deg 39.9' N 12 deg 32.7' E Lat/Long Far Early: 8 deg 25.8' N 12 deg 56.6' E GMT Center 1994/108:00:43:08.3 Lat/Long Center: 8 deg 56.3' N 12 deg 58.5' E Lat/Long Near Late: 9 deg 26.6' N 13 deg 0.5' E Lat/Long Far Late: 9 deg 12.5' N 13 deg 24.4' E SEG_03 Lat/Long Near Early: 9 deg 26.6' N 13 deg 0.5' E Lat/Long Far Early: 9 deg 12.5' N 13 deg 24.4' E GMT Center 1994/108:00:43:22.1 Lat/Long Center: 9 deg 43.0' N 13 deg 26.3' E Lat/Long Near Late: 10 deg 13.3' N 13 deg 28.3' E Lat/Long Far Late: 9 deg 59.2' N 13 deg 52.3' E SEG_04 Lat/Long Near Early: 10 deg 13.3' N 13 deg 28.3' E Lat/Long Far Early: 9 deg 59.2' N 13 deg 52.3' E GMT Center 1994/108:00:43:35.8 Lat/Long Center: 10 deg 29.6' N 13 deg 54.3' E Lat/Long Near Late: 10 deg 60.0' N 13 deg 56.3' E Lat/Long Far Late: 10 deg 45.7' N 14 deg 20.4' E SEG_05 Lat/Long Near Early: 10 deg 60.0' N 13 deg 56.3' E Lat/Long Far Early: 10 deg 45.7' N 14 deg 20.4' E GMT Center 1994/108:00:43:49.5 Lat/Long Center: 11 deg 16.2' N 14 deg 22.4' E Lat/Long Near Late: 11 deg 46.6' N 14 deg 24.5' E Lat/Long Far Late: 11 deg 32.2' N 14 deg 48.6' E SEG_06 Lat/Long Near Early: 11 deg 46.6' N 14 deg 24.5' E Lat/Long Far Early: 11 deg 32.2' N 14 deg 48.6' E GMT Center 1994/108:00:44:03.2 Lat/Long Center: 12 deg 2.7' N 14 deg 50.7' E Lat/Long Near Late: 12 deg 33.1' N 14 deg 52.9' E Lat/Long Far Late: 12 deg 18.7' N 15 deg 17.1' E SEG_07 Lat/Long Near Early: 12 deg 33.1' N 14 deg 52.9' E Lat/Long Far Early: 12 deg 18.7' N 15 deg 17.1' E GMT Center 1994/108:00:44:16.9 Lat/Long Center: 12 deg 49.1' N 15 deg 19.2' E Lat/Long Near Late: 13 deg 19.5' N 15 deg 21.4' E Lat/Long Far Late: 13 deg 5.0' N 15 deg 45.7' E SEG_08 Lat/Long Near Early: 13 deg 19.5' N 15 deg 21.4' E Lat/Long Far Early: 13 deg 5.0' N 15 deg 45.7' E GMT Center 1994/108:00:44:30.7 Lat/Long Center: 13 deg 35.5' N 15 deg 47.9' E Lat/Long Near Late: 14 deg 5.9' N 15 deg 50.2' E Lat/Long Far Late: 13 deg 51.3' N 16 deg 14.6' E SEG_09 Lat/Long Near Early: 14 deg 5.9' N 15 deg 50.2' E Lat/Long Far Early: 13 deg 51.3' N 16 deg 14.6' E GMT Center 1994/108:00:44:44.4 Lat/Long Center: 14 deg 21.8' N 16 deg 16.8' E Lat/Long Near Late: 14 deg 52.2' N 16 deg 19.2' E Lat/Long Far Late: 14 deg 37.5' N 16 deg 43.6' E SEG_10 Lat/Long Near Early: 14 deg 52.2' N 16 deg 19.2' E Lat/Long Far Early: 14 deg 37.5' N 16 deg 43.6' E GMT Center 1994/108:00:44:58.1 Lat/Long Center: 15 deg 7.9' N 16 deg 46.0' E Lat/Long Near Late: 15 deg 38.4' N 16 deg 48.4' E Lat/Long Far Late: 15 deg 23.6' N 17 deg 13.0' E SEG_11 Lat/Long Near Early: 15 deg 38.4' N 16 deg 48.4' E Lat/Long Far Early: 15 deg 23.6' N 17 deg 13.0' E GMT Center 1994/108:00:45:11.8 Lat/Long Center: 15 deg 54.0' N 17 deg 15.4' E Lat/Long Near Late: 16 deg 24.5' N 17 deg 17.9' E Lat/Long Far Late: 16 deg 9.6' N 17 deg 42.5' E SEG_12 Lat/Long Near Early: 16 deg 24.5' N 17 deg 17.9' E Lat/Long Far Early: 16 deg 9.6' N 17 deg 42.5' E GMT Center 1994/108:00:45:25.5 Lat/Long Center: 16 deg 40.1' N 17 deg 45.0' E Lat/Long Near Late: 17 deg 10.5' N 17 deg 47.6' E Lat/Long Far Late: 16 deg 55.5' N 18 deg 12.4' E SEG_13 Lat/Long Near Early: 17 deg 10.5' N 17 deg 47.6' E Lat/Long Far Early: 16 deg 55.5' N 18 deg 12.4' E GMT Center 1994/108:00:45:39.2 Lat/Long Center: 17 deg 26.0' N 18 deg 15.0' E Lat/Long Near Late: 17 deg 56.4' N 18 deg 17.6' E Lat/Long Far Late: 17 deg 41.3' N 18 deg 42.5' E SEG_14 Lat/Long Near Early: 17 deg 56.4' N 18 deg 17.6' E Lat/Long Far Early: 17 deg 41.3' N 18 deg 42.5' E GMT Center 1994/108:00:45:53.0 Lat/Long Center: 18 deg 11.8' N 18 deg 45.2' E Lat/Long Near Late: 18 deg 42.2' N 18 deg 47.9' E Lat/Long Far Late: 18 deg 27.0' N 19 deg 12.9' E SEG_15 Lat/Long Near Early: 18 deg 42.2' N 18 deg 47.9' E Lat/Long Far Early: 18 deg 27.0' N 19 deg 12.9' E GMT Center 1994/108:00:46:06.7 Lat/Long Center: 18 deg 57.5' N 19 deg 15.7' E Lat/Long Near Late: 19 deg 27.9' N 19 deg 18.5' E Lat/Long Far Late: 19 deg 12.6' N 19 deg 43.6' E SEG_16 Lat/Long Near Early: 19 deg 27.9' N 19 deg 18.5' E Lat/Long Far Early: 19 deg 12.6' N 19 deg 43.6' E GMT Center 1994/108:00:46:20.4 Lat/Long Center: 19 deg 43.0' N 19 deg 46.5' E Lat/Long Near Late: 20 deg 13.5' N 19 deg 49.4' E Lat/Long Far Late: 19 deg 58.0' N 20 deg 14.6' E SEG_17 Lat/Long Near Early: 20 deg 13.5' N 19 deg 49.4' E Lat/Long Far Early: 19 deg 58.0' N 20 deg 14.6' E GMT Center 1994/108:00:46:34.1 Lat/Long Center: 20 deg 28.5' N 20 deg 17.7' E Lat/Long Near Late: 20 deg 59.0' N 20 deg 20.7' E Lat/Long Far Late: 20 deg 43.3' N 20 deg 46.0' E SEG_18 Lat/Long Near Early: 20 deg 59.0' N 20 deg 20.7' E Lat/Long Far Early: 20 deg 43.3' N 20 deg 46.0' E GMT Center 1994/108:00:46:47.8 Lat/Long Center: 21 deg 13.8' N 20 deg 49.2' E Lat/Long Near Late: 21 deg 44.3' N 20 deg 52.3' E Lat/Long Far Late: 21 deg 28.5' N 21 deg 17.8' E SEG_19 Lat/Long Near Early: 21 deg 44.3' N 20 deg 52.3' E Lat/Long Far Early: 21 deg 28.5' N 21 deg 17.8' E GMT Center 1994/108:00:47:01.6 Lat/Long Center: 21 deg 59.0' N 21 deg 21.1' E Lat/Long Near Late: 22 deg 29.5' N 21 deg 24.3' E Lat/Long Far Late: 22 deg 13.6' N 21 deg 49.9' E SEG_20 Lat/Long Near Early: 22 deg 29.5' N 21 deg 24.3' E Lat/Long Far Early: 22 deg 13.6' N 21 deg 49.9' E GMT Center 1994/108:00:47:15.3 Lat/Long Center: 22 deg 44.0' N 21 deg 53.3' E Lat/Long Near Late: 23 deg 14.6' N 21 deg 56.7' E Lat/Long Far Late: 22 deg 58.5' N 22 deg 22.4' E SEG_21 Lat/Long Near Early: 23 deg 14.6' N 21 deg 56.7' E Lat/Long Far Early: 22 deg 58.5' N 22 deg 22.4' E GMT Center 1994/108:00:47:29.0 Lat/Long Center: 23 deg 28.9' N 22 deg 26.0' E Lat/Long Near Late: 23 deg 59.5' N 22 deg 29.5' E Lat/Long Far Late: 23 deg 43.2' N 22 deg 55.4' E SEG_22 Lat/Long Near Early: 23 deg 59.5' N 22 deg 29.5' E Lat/Long Far Early: 23 deg 43.2' N 22 deg 55.4' E GMT Center 1994/108:00:47:42.7 Lat/Long Center: 24 deg 13.7' N 22 deg 59.1' E Lat/Long Near Late: 24 deg 44.3' N 23 deg 2.7' E Lat/Long Far Late: 24 deg 27.8' N 23 deg 28.7' E SEG_23 Lat/Long Near Early: 24 deg 44.3' N 23 deg 2.7' E Lat/Long Far Early: 24 deg 27.8' N 23 deg 28.7' E GMT Center 1994/108:00:47:56.4 Lat/Long Center: 24 deg 58.3' N 23 deg 32.6' E Lat/Long Near Late: 25 deg 28.9' N 23 deg 36.3' E Lat/Long Far Late: 25 deg 12.2' N 24 deg 2.5' E SEG_24 Lat/Long Near Early: 25 deg 28.9' N 23 deg 36.3' E Lat/Long Far Early: 25 deg 12.2' N 24 deg 2.5' E GMT Center 1994/108:00:48:10.1 Lat/Long Center: 25 deg 42.7' N 24 deg 6.5' E Lat/Long Near Late: 26 deg 13.3' N 24 deg 10.4' E Lat/Long Far Late: 25 deg 56.5' N 24 deg 36.8' E SEG_25 Lat/Long Near Early: 26 deg 13.3' N 24 deg 10.4' E Lat/Long Far Early: 25 deg 56.5' N 24 deg 36.8' E GMT Center 1994/108:00:48:23.9 Lat/Long Center: 26 deg 26.9' N 24 deg 41.0' E Lat/Long Near Late: 26 deg 57.6' N 24 deg 45.0' E Lat/Long Far Late: 26 deg 40.5' N 25 deg 11.5' E SEG_26 Lat/Long Near Early: 26 deg 57.6' N 24 deg 45.0' E Lat/Long Far Early: 26 deg 40.5' N 25 deg 11.5' E GMT Center 1994/108:00:48:37.6 Lat/Long Center: 27 deg 11.0' N 25 deg 15.9' E Lat/Long Near Late: 27 deg 41.6' N 25 deg 20.1' E Lat/Long Far Late: 27 deg 24.4' N 25 deg 46.8' E SEG_27 Lat/Long Near Early: 27 deg 41.6' N 25 deg 20.1' E Lat/Long Far Early: 27 deg 24.4' N 25 deg 46.8' E GMT Center 1994/108:00:48:51.3 Lat/Long Center: 27 deg 54.9' N 25 deg 51.4' E Lat/Long Near Late: 28 deg 25.5' N 25 deg 55.7' E Lat/Long Far Late: 28 deg 8.1' N 26 deg 22.6' E SEG_28 Lat/Long Near Early: 28 deg 25.5' N 25 deg 55.7' E Lat/Long Far Early: 28 deg 8.1' N 26 deg 22.6' E GMT Center 1994/108:00:49:05.0 Lat/Long Center: 28 deg 38.5' N 26 deg 27.3' E Lat/Long Near Late: 29 deg 9.2' N 26 deg 31.9' E Lat/Long Far Late: 28 deg 51.5' N 26 deg 58.9' E SEG_29 Lat/Long Near Early: 29 deg 9.2' N 26 deg 31.9' E Lat/Long Far Early: 28 deg 51.5' N 26 deg 58.9' E GMT Center 1994/108:00:49:18.7 Lat/Long Center: 29 deg 22.0' N 27 deg 3.9' E Lat/Long Near Late: 29 deg 52.7' N 27 deg 8.6' E Lat/Long Far Late: 29 deg 34.8' N 27 deg 35.8' E SEG_30 Lat/Long Near Early: 29 deg 52.7' N 27 deg 8.6' E Lat/Long Far Early: 29 deg 34.8' N 27 deg 35.8' E GMT Center 1994/108:00:49:32.5 Lat/Long Center: 30 deg 5.2' N 27 deg 41.0' E Lat/Long Near Late: 30 deg 35.9' N 27 deg 45.9' E Lat/Long Far Late: 30 deg 17.8' N 28 deg 13.2' E SEG_31 Lat/Long Near Early: 30 deg 35.9' N 27 deg 45.9' E Lat/Long Far Early: 30 deg 17.8' N 28 deg 13.2' E GMT Center 1994/108:00:49:46.2 Lat/Long Center: 30 deg 48.2' N 28 deg 18.7' E Lat/Long Near Late: 31 deg 18.9' N 28 deg 23.9' E Lat/Long Far Late: 31 deg 0.6' N 28 deg 51.3' E SEG_32 Lat/Long Near Early: 31 deg 18.9' N 28 deg 23.9' E Lat/Long Far Early: 31 deg 0.6' N 28 deg 51.3' E GMT Center 1994/108:00:49:59.9 Lat/Long Center: 31 deg 31.0' N 28 deg 57.0' E Lat/Long Near Late: 32 deg 1.7' N 29 deg 2.4' E Lat/Long Far Late: 31 deg 43.1' N 29 deg 30.0' E SEG_33 Lat/Long Near Early: 32 deg 1.7' N 29 deg 2.4' E Lat/Long Far Early: 31 deg 43.1' N 29 deg 30.0' E GMT Center 1994/108:00:50:13.6 Lat/Long Center: 32 deg 13.6' N 29 deg 36.0' E Lat/Long Near Data End: 32 deg 35.9' N 29 deg 33.9' E Lat/Long Far Data End: 32 deg 17.1' N 30 deg 1.6' E