DTHDR.TXT: DATA TAKE HEADER FILE 1 2 3 4 5 6 7 1234567890123456789012345678901234567890123456789012345678901234567890123456 Data Take ID: 172.21 Site Name: Siwa/Largeau, Sahara Chad Site ID: GS7 Mission ID: SRL-1 Sensor ID: SIR-C Radar Data Acquisition Mode: SIR-C 11 Antenna Direction: Right Looking Orbit Direction: Ascending Pulse Bandwidth (MHz): 10 Pulse Duration (micro sec): 34 Quantization Format: BFPQ Beam Spoiling Mode: 3 PRF (Hz): 1395.000 Frequency Band: L Carrier Frequency (GHz): 1.254 Wavelength (m): 0.239 Polarization Channel: HH Product Type: Survey Image Data Take Start GMT: 1994/110:00:00:45.7 Data Take End GMT: 1994/110:00:03:44.8 Data Take Duration (min:sec): 2:57 Latitude at Start GMT: 14 deg 33.1' N Longitude at Start GMT: 16 deg 39.7' E Latitude at End GMT: 24 deg 24.7' N Longitude at End GMT: 23 deg 28.5' E Center Incidence Angle (deg): 44.0 Track Angle at Image Center: 33.2 deg E of True North Along-Track Image Size (km): 1306.0 Cross-Track Image Size (km): 69.6 Along-Track Resolution (m): 104 Cross-Track Resolution (m): 92 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): 52.1 Bit Error Rate (exponent): 0.0 Number of Looks: 4.0 Image Segment Size (km): 100 Image Segments: 14 Bytes per Record: 2000 Records per Segment: 1542 Product Generation Date: Aug 09, 1994 Processing Facility: JPL Processor S/W Version: 1.2.4 Available Standard Products: LHH, LHV, CHH, CHV Processing Run Number: 10771 Comments: SEG_01 Lat/Long Near Early: 14 deg 43.0' N 16 deg 23.3' E Lat/Long Far Early: 14 deg 23.2' N 16 deg 56.1' E GMT Center 1994/110:00:00:52.6 Lat/Long Center: 14 deg 56.1' N 16 deg 54.4' E Lat/Long Near Late: 15 deg 29.1' N 16 deg 52.7' E Lat/Long Far Late: 15 deg 9.1' N 17 deg 25.5' E SEG_02 Lat/Long Near Early: 15 deg 29.1' N 16 deg 52.7' E Lat/Long Far Early: 15 deg 9.1' N 17 deg 25.5' E GMT Center 1994/110:00:01:06.3 Lat/Long Center: 15 deg 42.1' N 17 deg 23.9' E Lat/Long Near Late: 16 deg 15.1' N 17 deg 22.3' E Lat/Long Far Late: 15 deg 55.0' N 17 deg 55.2' E SEG_03 Lat/Long Near Early: 16 deg 15.1' N 17 deg 22.3' E Lat/Long Far Early: 15 deg 55.0' N 17 deg 55.2' E GMT Center 1994/110:00:01:20.0 Lat/Long Center: 16 deg 28.0' N 17 deg 53.7' E Lat/Long Near Late: 17 deg 1.0' N 17 deg 52.2' E Lat/Long Far Late: 16 deg 40.8' N 18 deg 25.2' E SEG_04 Lat/Long Near Early: 17 deg 1.0' N 17 deg 52.2' E Lat/Long Far Early: 16 deg 40.8' N 18 deg 25.2' E GMT Center 1994/110:00:01:33.7 Lat/Long Center: 17 deg 13.7' N 18 deg 23.8' E Lat/Long Near Late: 17 deg 46.7' N 18 deg 22.4' E Lat/Long Far Late: 17 deg 26.4' N 18 deg 55.5' E SEG_05 Lat/Long Near Early: 17 deg 46.7' N 18 deg 22.4' E Lat/Long Far Early: 17 deg 26.4' N 18 deg 55.5' E GMT Center 1994/110:00:01:47.4 Lat/Long Center: 17 deg 59.4' N 18 deg 54.2' E Lat/Long Near Late: 18 deg 32.4' N 18 deg 52.9' E Lat/Long Far Late: 18 deg 11.9' N 19 deg 26.0' E SEG_06 Lat/Long Near Early: 18 deg 32.4' N 18 deg 52.9' E Lat/Long Far Early: 18 deg 11.9' N 19 deg 26.0' E GMT Center 1994/110:00:02:01.1 Lat/Long Center: 18 deg 44.9' N 19 deg 24.8' E Lat/Long Near Late: 19 deg 17.9' N 19 deg 23.7' E Lat/Long Far Late: 18 deg 57.3' N 19 deg 56.9' E SEG_07 Lat/Long Near Early: 19 deg 17.9' N 19 deg 23.7' E Lat/Long Far Early: 18 deg 57.3' N 19 deg 56.9' E GMT Center 1994/110:00:02:14.8 Lat/Long Center: 19 deg 30.3' N 19 deg 55.9' E Lat/Long Near Late: 20 deg 3.4' N 19 deg 54.8' E Lat/Long Far Late: 19 deg 42.6' N 20 deg 28.2' E SEG_08 Lat/Long Near Early: 20 deg 3.4' N 19 deg 54.8' E Lat/Long Far Early: 19 deg 42.6' N 20 deg 28.2' E GMT Center 1994/110:00:02:28.6 Lat/Long Center: 20 deg 15.6' N 20 deg 27.2' E Lat/Long Near Late: 20 deg 48.7' N 20 deg 26.2' E Lat/Long Far Late: 20 deg 27.7' N 20 deg 59.7' E SEG_09 Lat/Long Near Early: 20 deg 48.7' N 20 deg 26.2' E Lat/Long Far Early: 20 deg 27.7' N 20 deg 59.7' E GMT Center 1994/110:00:02:42.3 Lat/Long Center: 21 deg 0.8' N 20 deg 58.9' E Lat/Long Near Late: 21 deg 33.8' N 20 deg 58.1' E Lat/Long Far Late: 21 deg 12.7' N 21 deg 31.7' E SEG_10 Lat/Long Near Early: 21 deg 33.8' N 20 deg 58.1' E Lat/Long Far Early: 21 deg 12.7' N 21 deg 31.7' E GMT Center 1994/110:00:02:56.0 Lat/Long Center: 21 deg 45.8' N 21 deg 31.0' E Lat/Long Near Late: 22 deg 18.8' N 21 deg 30.3' E Lat/Long Far Late: 21 deg 57.6' N 22 deg 4.0' E SEG_11 Lat/Long Near Early: 22 deg 18.8' N 21 deg 30.3' E Lat/Long Far Early: 21 deg 57.6' N 22 deg 4.0' E GMT Center 1994/110:00:03:09.7 Lat/Long Center: 22 deg 30.6' N 22 deg 3.5' E Lat/Long Near Late: 23 deg 3.7' N 22 deg 2.9' E Lat/Long Far Late: 22 deg 42.3' N 22 deg 36.7' E SEG_12 Lat/Long Near Early: 23 deg 3.7' N 22 deg 2.9' E Lat/Long Far Early: 22 deg 42.3' N 22 deg 36.7' E GMT Center 1994/110:00:03:23.4 Lat/Long Center: 23 deg 15.3' N 22 deg 36.3' E Lat/Long Near Late: 23 deg 48.4' N 22 deg 35.9' E Lat/Long Far Late: 23 deg 26.8' N 23 deg 9.8' E SEG_13 Lat/Long Near Early: 23 deg 48.4' N 22 deg 35.9' E Lat/Long Far Early: 23 deg 26.8' N 23 deg 9.8' E GMT Center 1994/110:00:03:37.1 Lat/Long Center: 23 deg 59.8' N 23 deg 9.6' E Lat/Long Near Late: 24 deg 33.0' N 23 deg 9.4' E Lat/Long Far Late: 24 deg 11.1' N 23 deg 43.4' E SEG_14 Lat/Long Near Early: 24 deg 33.0' N 23 deg 9.4' E Lat/Long Far Early: 24 deg 11.1' N 23 deg 43.4' E Lat/Long Near Data End: 24 deg 35.6' N 23 deg 11.4' E Lat/Long Far Data End: 24 deg 13.8' N 23 deg 45.4' E