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:                      157.10
Site Name:                         Mt. Etna, Sicily, Italy        
Site ID:                           T16
No. of Ancillary Data Records:     34

       GMT          Roll Angle

1994/283:02:06:51.0    25.96
1994/283:02:06:57.8    25.95
1994/283:02:07:04.7    25.96
1994/283:02:07:11.6    25.96
1994/283:02:07:18.4    25.97
1994/283:02:07:25.3    25.98
1994/283:02:07:32.1    25.99
1994/283:02:07:39.0    26.00
1994/283:02:07:45.9    26.01
1994/283:02:07:52.7    26.03
1994/283:02:07:59.6    26.03
1994/283:02:08:06.5    26.08
1994/283:02:08:13.3    26.09
1994/283:02:08:20.2    26.12
1994/283:02:08:27.0    26.11
1994/283:02:08:33.9    26.10
1994/283:02:08:40.8    26.08
1994/283:02:08:47.6    26.07
1994/283:02:08:54.5    26.05
1994/283:02:09:01.3    26.05
1994/283:02:09:08.2    26.05
1994/283:02:09:15.1    26.05
1994/283:02:09:21.9    26.05
1994/283:02:09:28.8    26.06
1994/283:02:09:35.7    26.08
1994/283:02:09:42.5    26.08
1994/283:02:09:49.4    26.09
1994/283:02:09:56.2    26.11
1994/283:02:10:03.1    26.11
1994/283:02:10:10.0    26.10
1994/283:02:10:16.8    26.07
1994/283:02:10:23.7    26.06
1994/283:02:10:30.6    26.07
1994/283:02:10:37.4    26.07