DTHDR.TXT: DATA TAKE HEADER FILE 


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Data Take ID:                      38.41
Site Name:                         Washington D.C.                
Site ID:                           T12

Mission ID:                        SRL-2
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):        8
Quantization Format:               BFPQ
Beam Spoiling Mode:                0
PRF (Hz):                          1512.000
Frequency Band:                    L
Carrier Frequency (GHz):           1.249
Wavelength (m):                    0.240
Polarization Channel:              HH
Product Type:                      Survey Image
Data Take Start GMT:               1994/275:18:31:36.0
Data Take End GMT:                 1994/275:18:32:14.4
Data Take Duration (min:sec):      0:39
Latitude at Start GMT:             40 deg 2.9' N
Longitude at Start GMT:            78 deg 26.9' W
Latitude at End GMT:               38 deg 15.8' N
Longitude at End GMT:              76 deg 12.0' W
Center Incidence Angle (deg):      44.0
Track Angle at Image Center:       135.2 deg E of True North
Along-Track Image Size (km):       279.1
Cross-Track Image Size (km):       33.4
Along-Track Resolution (m):        63
Cross-Track Resolution (m):        46
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):        7.0
Bit Error Rate (exponent):         0.0
Number of Looks:                   4.0
Image Segment Size (km):           100
Image Segments:                    3
Bytes per Record:                  2000
Records per Segment:               818
Product Generation Date:           Nov 17, 1994
Processing Facility:               JPL
Processor S/W Version:             1.2.6   
Available Standard Products:       LHH, LHV, CHH, CHV,
                                   XVV
Processing Run Number:             40393
Comments:                          



SEG_01
   Lat/Long Near Early:            40 deg 9.4' N  78 deg 18.6' W
   Lat/Long Far Early:             39 deg 56.4' N  78 deg 35.1' W
   GMT Center                      1994/275:18:31:42.9
   Lat/Long Center:                39 deg 44.0' N  78 deg 2.0' W
   Lat/Long Near Late:             39 deg 31.3' N  77 deg 29.1' W
   Lat/Long Far Late:              39 deg 18.5' N  77 deg 45.6' W

SEG_02
   Lat/Long Near Early:            39 deg 31.3' N  77 deg 29.1' W
   Lat/Long Far Early:             39 deg 18.5' N  77 deg 45.6' W
   GMT Center                      1994/275:18:31:56.6
   Lat/Long Center:                39 deg 5.7' N  77 deg 13.0' W
   Lat/Long Near Late:             38 deg 52.8' N  76 deg 40.6' W
   Lat/Long Far Late:              38 deg 40.1' N  76 deg 57.2' W

SEG_03
   Lat/Long Near Early:            38 deg 52.8' N  76 deg 40.6' W
   Lat/Long Far Early:             38 deg 40.1' N  76 deg 57.2' W
   GMT Center                      1994/275:18:32:10.4
   Lat/Long Center:                38 deg 27.1' N  76 deg 25.0' W
   Lat/Long Near Data End:         38 deg 22.0' N  76 deg 3.7' W
   Lat/Long Far Data End:          38 deg 9.5' N  76 deg 20.2' W