DTHDR.TXT: DATA TAKE HEADER FILE 1 2 3 4 5 6 7 1234567890123456789012345678901234567890123456789012345678901234567890123456 Data Take ID: 135.30 Site Name: 20 MHz D/L over N. America Site ID: GF8 Mission ID: SRL-2 Sensor ID: SIR-C Radar Data Acquisition Mode: SIR-C 12 / X-SAR Antenna Direction: Left Looking Orbit Direction: Descending Pulse Bandwidth (MHz): 20 Pulse Duration (micro sec): 34 Quantization Format: BFPQ Beam Spoiling Mode: 0 PRF (Hz): 1736.000 Frequency Band: L Carrier Frequency (GHz): 1.249 Wavelength (m): 0.240 Polarization Channel: VV Product Type: Survey Image Data Take Start GMT: 1994/281:18:00:00.4 Data Take End GMT: 1994/281:18:04:54.3 Data Take Duration (min:sec): 4:54 Latitude at Start GMT: 39 deg 17.3' N Longitude at Start GMT: 97 deg 9.8' W Latitude at End GMT: 23 deg 39.1' N Longitude at End GMT: 83 deg 47.3' W Center Incidence Angle (deg): 49.3 Track Angle at Image Center: 144.4 deg E of True North Along-Track Image Size (km): 2139.5 Cross-Track Image Size (km): 29.0 Along-Track Resolution (m): 73 Cross-Track Resolution (m): 42 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): 2.5 Bit Error Rate (exponent): 0.0 Number of Looks: 4.0 Image Segment Size (km): 100 Image Segments: 22 Bytes per Record: 2000 Records per Segment: 730 Product Generation Date: Oct 31, 1994 Processing Facility: JPL Processor S/W Version: 1.2.6 Available Standard Products: LVH, LVV, CVH, CVV, XVV Processing Run Number: 40226 Comments: SEG_01 Lat/Long Near Early: 39 deg 12.2' N 97 deg 17.6' W Lat/Long Far Early: 39 deg 22.4' N 97 deg 2.0' W GMT Center 1994/281:18:00:07.3 Lat/Long Center: 38 deg 56.6' N 96 deg 47.4' W Lat/Long Near Late: 38 deg 30.8' N 96 deg 32.9' W Lat/Long Far Late: 38 deg 40.9' N 96 deg 17.4' W SEG_02 Lat/Long Near Early: 38 deg 30.8' N 96 deg 32.9' W Lat/Long Far Early: 38 deg 40.9' N 96 deg 17.4' W GMT Center 1994/281:18:00:21.0 Lat/Long Center: 38 deg 15.0' N 96 deg 3.2' W Lat/Long Near Late: 37 deg 49.1' N 95 deg 49.1' W Lat/Long Far Late: 37 deg 59.1' N 95 deg 33.7' W SEG_03 Lat/Long Near Early: 37 deg 49.1' N 95 deg 49.1' W Lat/Long Far Early: 37 deg 59.1' N 95 deg 33.7' W GMT Center 1994/281:18:00:34.7 Lat/Long Center: 37 deg 33.1' N 95 deg 19.8' W Lat/Long Near Late: 37 deg 7.1' N 95 deg 6.1' W Lat/Long Far Late: 37 deg 17.0' N 94 deg 50.8' W SEG_04 Lat/Long Near Early: 37 deg 7.1' N 95 deg 6.1' W Lat/Long Far Early: 37 deg 17.0' N 94 deg 50.8' W GMT Center 1994/281:18:00:48.5 Lat/Long Center: 36 deg 50.9' N 94 deg 37.3' W Lat/Long Near Late: 36 deg 24.9' N 94 deg 24.0' W Lat/Long Far Late: 36 deg 34.6' N 94 deg 8.7' W SEG_05 Lat/Long Near Early: 36 deg 24.9' N 94 deg 24.0' W Lat/Long Far Early: 36 deg 34.6' N 94 deg 8.7' W GMT Center 1994/281:18:01:02.2 Lat/Long Center: 36 deg 8.5' N 93 deg 55.6' W Lat/Long Near Late: 35 deg 42.3' N 93 deg 42.7' W Lat/Long Far Late: 35 deg 52.0' N 93 deg 27.4' W SEG_06 Lat/Long Near Early: 35 deg 42.3' N 93 deg 42.7' W Lat/Long Far Early: 35 deg 52.0' N 93 deg 27.4' W GMT Center 1994/281:18:01:15.9 Lat/Long Center: 35 deg 25.7' N 93 deg 14.7' W Lat/Long Near Late: 34 deg 59.5' N 93 deg 2.1' W Lat/Long Far Late: 35 deg 9.0' N 92 deg 46.9' W SEG_07 Lat/Long Near Early: 34 deg 59.5' N 93 deg 2.1' W Lat/Long Far Early: 35 deg 9.0' N 92 deg 46.9' W GMT Center 1994/281:18:01:29.7 Lat/Long Center: 34 deg 42.8' N 92 deg 34.5' W Lat/Long Near Late: 34 deg 16.4' N 92 deg 22.2' W Lat/Long Far Late: 34 deg 25.9' N 92 deg 7.1' W SEG_08 Lat/Long Near Early: 34 deg 16.4' N 92 deg 22.2' W Lat/Long Far Early: 34 deg 25.9' N 92 deg 7.1' W GMT Center 1994/281:18:01:43.4 Lat/Long Center: 33 deg 59.5' N 91 deg 55.0' W Lat/Long Near Late: 33 deg 33.1' N 91 deg 43.1' W Lat/Long Far Late: 33 deg 42.5' N 91 deg 28.0' W SEG_09 Lat/Long Near Early: 33 deg 33.1' N 91 deg 43.1' W Lat/Long Far Early: 33 deg 42.5' N 91 deg 28.0' W GMT Center 1994/281:18:01:57.2 Lat/Long Center: 33 deg 16.1' N 91 deg 16.2' W Lat/Long Near Late: 32 deg 49.6' N 91 deg 4.6' W Lat/Long Far Late: 32 deg 58.9' N 90 deg 49.6' W SEG_10 Lat/Long Near Early: 32 deg 49.6' N 91 deg 4.6' W Lat/Long Far Early: 32 deg 58.9' N 90 deg 49.6' W GMT Center 1994/281:18:02:10.9 Lat/Long Center: 32 deg 32.4' N 90 deg 38.1' W Lat/Long Near Late: 32 deg 5.9' N 90 deg 26.8' W Lat/Long Far Late: 32 deg 15.1' N 90 deg 11.8' W SEG_11 Lat/Long Near Early: 32 deg 5.9' N 90 deg 26.8' W Lat/Long Far Early: 32 deg 15.1' N 90 deg 11.8' W GMT Center 1994/281:18:02:24.6 Lat/Long Center: 31 deg 48.5' N 90 deg 0.6' W Lat/Long Near Late: 31 deg 21.9' N 89 deg 49.6' W Lat/Long Far Late: 31 deg 31.0' N 89 deg 34.7' W SEG_12 Lat/Long Near Early: 31 deg 21.9' N 89 deg 49.6' W Lat/Long Far Early: 31 deg 31.0' N 89 deg 34.7' W GMT Center 1994/281:18:02:38.4 Lat/Long Center: 31 deg 4.4' N 89 deg 23.8' W Lat/Long Near Late: 30 deg 37.8' N 89 deg 12.9' W Lat/Long Far Late: 30 deg 46.8' N 88 deg 58.1' W SEG_13 Lat/Long Near Early: 30 deg 37.8' N 89 deg 12.9' W Lat/Long Far Early: 30 deg 46.8' N 88 deg 58.1' W GMT Center 1994/281:18:02:52.1 Lat/Long Center: 30 deg 20.1' N 88 deg 47.5' W Lat/Long Near Late: 29 deg 53.5' N 88 deg 36.9' W Lat/Long Far Late: 30 deg 2.4' N 88 deg 22.2' W SEG_14 Lat/Long Near Early: 29 deg 53.5' N 88 deg 36.9' W Lat/Long Far Early: 30 deg 2.4' N 88 deg 22.2' W GMT Center 1994/281:18:03:05.9 Lat/Long Center: 29 deg 35.7' N 88 deg 11.8' W Lat/Long Near Late: 29 deg 9.0' N 88 deg 1.4' W Lat/Long Far Late: 29 deg 17.8' N 87 deg 46.8' W SEG_15 Lat/Long Near Early: 29 deg 9.0' N 88 deg 1.4' W Lat/Long Far Early: 29 deg 17.8' N 87 deg 46.8' W GMT Center 1994/281:18:03:19.6 Lat/Long Center: 28 deg 51.0' N 87 deg 36.6' W Lat/Long Near Late: 28 deg 24.3' N 87 deg 26.5' W Lat/Long Far Late: 28 deg 33.1' N 87 deg 11.9' W SEG_16 Lat/Long Near Early: 28 deg 24.3' N 87 deg 26.5' W Lat/Long Far Early: 28 deg 33.1' N 87 deg 11.9' W GMT Center 1994/281:18:03:33.3 Lat/Long Center: 28 deg 6.2' N 87 deg 1.9' W Lat/Long Near Late: 27 deg 39.4' N 86 deg 52.0' W Lat/Long Far Late: 27 deg 48.1' N 86 deg 37.5' W SEG_17 Lat/Long Near Early: 27 deg 39.4' N 86 deg 52.0' W Lat/Long Far Early: 27 deg 48.1' N 86 deg 37.5' W GMT Center 1994/281:18:03:47.1 Lat/Long Center: 27 deg 21.3' N 86 deg 27.7' W Lat/Long Near Late: 26 deg 54.4' N 86 deg 18.1' W Lat/Long Far Late: 27 deg 3.1' N 86 deg 3.6' W SEG_18 Lat/Long Near Early: 26 deg 54.4' N 86 deg 18.1' W Lat/Long Far Early: 27 deg 3.1' N 86 deg 3.6' W GMT Center 1994/281:18:04:00.8 Lat/Long Center: 29 deg 52.0' N 88 deg 54.9' W Lat/Long Near Late: 26 deg 9.3' N 85 deg 44.6' W Lat/Long Far Late: 26 deg 17.8' N 85 deg 30.1' W SEG_19 Lat/Long Near Early: 26 deg 9.3' N 85 deg 44.6' W Lat/Long Far Early: 26 deg 17.8' N 85 deg 30.1' W GMT Center 1994/281:18:04:14.5 Lat/Long Center: 25 deg 50.9' N 85 deg 20.8' W Lat/Long Near Late: 25 deg 24.0' N 85 deg 11.5' W Lat/Long Far Late: 25 deg 32.5' N 84 deg 57.1' W SEG_20 Lat/Long Near Early: 25 deg 24.0' N 85 deg 11.5' W Lat/Long Far Early: 25 deg 32.5' N 84 deg 57.1' W GMT Center 1994/281:18:04:28.3 Lat/Long Center: 25 deg 5.5' N 84 deg 48.0' W Lat/Long Near Late: 24 deg 38.5' N 84 deg 38.9' W Lat/Long Far Late: 24 deg 47.0' N 84 deg 24.6' W SEG_21 Lat/Long Near Early: 24 deg 38.5' N 84 deg 38.9' W Lat/Long Far Early: 24 deg 47.0' N 84 deg 24.6' W GMT Center 1994/281:18:04:42.0 Lat/Long Center: 24 deg 20.0' N 84 deg 15.6' W Lat/Long Near Late: 23 deg 52.9' N 84 deg 6.6' W Lat/Long Far Late: 24 deg 1.3' N 83 deg 52.4' W SEG_22 Lat/Long Near Early: 23 deg 52.9' N 84 deg 6.6' W Lat/Long Far Early: 24 deg 1.3' N 83 deg 52.4' W Lat/Long Near Data End: 23 deg 34.9' N 83 deg 54.4' W Lat/Long Far Data End: 23 deg 43.3' N 83 deg 40.2' W