DTHDR.TXT: DATA TAKE HEADER FILE 


         1         2         3         4         5         6         7 
1234567890123456789012345678901234567890123456789012345678901234567890123456


Data Take ID:                      89.40
Site Name:                         Calcutta, India                
Site ID:                           T31

Mission ID:                        SRL-2
Sensor ID:                         SIR-C
Radar Data Acquisition Mode:       SIR-C 16 / X-SAR
Antenna Direction:                 Left Looking
Orbit Direction:                   Ascending
Pulse Bandwidth (MHz):             20
Pulse Duration (micro sec):        17
Quantization Format:               BFPQ
Beam Spoiling Mode:                4
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:               1994/278:21:34:25.2
Data Take End GMT:                 1994/278:21:35:12.0
Data Take Duration (min:sec):      0:47
Latitude at Start GMT:             20 deg 58.4' N
Longitude at Start GMT:            87 deg 17.0' E
Latitude at End GMT:               23 deg 32.9' N
Longitude at End GMT:              89 deg 4.9' E
Center Incidence Angle (deg):      24.1
Track Angle at Image Center:       32.8 deg E of True North
Along-Track Image Size (km):       340.2
Cross-Track Image Size (km):       23.6
Along-Track Resolution (m):        94
Cross-Track Resolution (m):        78
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):        100.0
Bit Error Rate (exponent):         0.0
Number of Looks:                   4.0
Image Segment Size (km):           100
Image Segments:                    4
Bytes per Record:                  2000
Records per Segment:               622
Product Generation Date:           Feb 16, 1995
Processing Facility:               JPL
Processor S/W Version:             1.2.7   
Available Standard Products:       LHH, LVH, LHV, LVV,
                                   CHH, CVH, CHV, CVV,
                                   XVV
Processing Run Number:             41031
Comments:                          



SEG_01
   Lat/Long Near Early:            20 deg 55.0' N  87 deg 22.7' E
   Lat/Long Far Early:             21 deg 1.8' N  87 deg 11.3' E
   GMT Center                      1994/278:21:34:32.1
   Lat/Long Center:                21 deg 21.2' N  87 deg 32.6' E
   Lat/Long Near Late:             21 deg 40.5' N  87 deg 54.1' E
   Lat/Long Far Late:              21 deg 47.4' N  87 deg 42.6' E

SEG_02
   Lat/Long Near Early:            21 deg 40.5' N  87 deg 54.1' E
   Lat/Long Far Early:             21 deg 47.4' N  87 deg 42.6' E
   GMT Center                      1994/278:21:34:45.8
   Lat/Long Center:                22 deg 6.7' N  88 deg 4.2' E
   Lat/Long Near Late:             22 deg 25.9' N  88 deg 25.9' E
   Lat/Long Far Late:              22 deg 32.8' N  88 deg 14.3' E

SEG_03
   Lat/Long Near Early:            22 deg 25.9' N  88 deg 25.9' E
   Lat/Long Far Early:             22 deg 32.8' N  88 deg 14.3' E
   GMT Center                      1994/278:21:34:59.6
   Lat/Long Center:                22 deg 52.0' N  88 deg 36.1' E
   Lat/Long Near Late:             23 deg 11.2' N  88 deg 58.1' E
   Lat/Long Far Late:              23 deg 18.2' N  88 deg 46.4' E

SEG_04
   Lat/Long Near Early:            23 deg 11.2' N  88 deg 58.1' E
   Lat/Long Far Early:             23 deg 18.2' N  88 deg 46.4' E
   Lat/Long Near Data End:         23 deg 29.4' N  89 deg 10.8' E
   Lat/Long Far Data End:          23 deg 36.4' N  88 deg 59.1' E