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:                      157.00
Site Name:                         Mt. Etna, Sicily, Italy        
Site ID:                           T16
No. of Ancillary Data Records:     36

       GMT          Roll Angle

1994/109:01:57:15.0    26.15
1994/109:01:57:21.9    26.16
1994/109:01:57:28.7    26.16
1994/109:01:57:35.6    26.14
1994/109:01:57:42.5    26.15
1994/109:01:57:49.3    26.14
1994/109:01:57:56.2    26.14
1994/109:01:58:03.1    26.13
1994/109:01:58:09.9    26.14
1994/109:01:58:16.8    26.13
1994/109:01:58:23.7    26.14
1994/109:01:58:30.5    26.14
1994/109:01:58:37.4    26.16
1994/109:01:58:44.3    26.15
1994/109:01:58:51.1    26.14
1994/109:01:58:58.0    26.11
1994/109:01:59:04.9    26.10
1994/109:01:59:11.7    26.08
1994/109:01:59:18.6    26.06
1994/109:01:59:25.5    26.05
1994/109:01:59:32.3    26.04
1994/109:01:59:39.2    26.03
1994/109:01:59:46.1    26.02
1994/109:01:59:52.9    26.02
1994/109:01:59:59.8    26.02
1994/109:02:00:06.7    26.03
1994/109:02:00:13.5    26.03
1994/109:02:00:20.4    26.03
1994/109:02:00:27.3    26.05
1994/109:02:00:34.1    26.05
1994/109:02:00:41.0    26.07
1994/109:02:00:47.9    26.07
1994/109:02:00:54.7    26.09
1994/109:02:01:01.6    26.11
1994/109:02:01:08.5    26.13
1994/109:02:01:15.3    26.16