ROLL.TXT: ROLL ANGLE ANCILLARY DATA FILE 

This file contains roll angle estimates history as derived from SIR-C 
null tracking algorithms developed by J. C. Curlander, et al. 
GMT is expressed as (YYYY/ddd:hh:mm:ss.s). 
Roll angles are expressed in degrees. 
         1         2         3         4         5         6         7 
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Data Take ID:                      173.22
Site Name:                         Mt. Etna, Sicily, Italy        
Site ID:                           T16
No. of Ancillary Data Records:     22

       GMT          Roll Angle

1994/284:01:44:24.0    26.12
1994/284:01:44:30.8    26.11
1994/284:01:44:37.7    26.09
1994/284:01:44:44.6    26.09
1994/284:01:44:51.4    26.09
1994/284:01:44:58.3    26.09
1994/284:01:45:05.1    26.09
1994/284:01:45:12.0    26.09
1994/284:01:45:18.9    26.10
1994/284:01:45:25.7    26.11
1994/284:01:45:32.6    26.12
1994/284:01:45:39.5    26.12
1994/284:01:45:46.3    26.12
1994/284:01:45:53.2    26.11
1994/284:01:46:00.0    26.09
1994/284:01:46:06.9    26.11
1994/284:01:46:13.8    26.10
1994/284:01:46:20.6    26.12
1994/284:01:46:27.5    26.10
1994/284:01:46:34.3    26.09
1994/284:01:46:41.2    26.08
1994/284:01:46:48.1    26.08