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 
1234567890123456789012345678901234567890123456789012345678901234567890123456


Data Take ID:                      81.00
Site Name:                         Chulchaca, Yucatan Mexico      
Site ID:                           E58
No. of Ancillary Data Records:     34

       GMT          Roll Angle

1994/278:09:41:59.0    26.07
1994/278:09:42:05.8    26.09
1994/278:09:42:12.7    26.09
1994/278:09:42:19.6    26.08
1994/278:09:42:26.4    26.06
1994/278:09:42:33.3    26.06
1994/278:09:42:40.1    26.05
1994/278:09:42:47.0    26.04
1994/278:09:42:53.9    26.03
1994/278:09:43:00.7    26.03
1994/278:09:43:07.6    26.02
1994/278:09:43:14.4    26.03
1994/278:09:43:21.3    26.02
1994/278:09:43:28.2    26.04
1994/278:09:43:35.0    26.03
1994/278:09:43:41.9    26.03
1994/278:09:43:48.7    26.03
1994/278:09:43:55.6    26.03
1994/278:09:44:02.5    26.03
1994/278:09:44:09.3    26.04
1994/278:09:44:16.2    26.02
1994/278:09:44:23.0    26.02
1994/278:09:44:29.9    26.01
1994/278:09:44:36.8    26.01
1994/278:09:44:43.6    26.01
1994/278:09:44:50.5    26.03
1994/278:09:44:57.3    26.03
1994/278:09:45:04.2    26.04
1994/278:09:45:11.1    26.05
1994/278:09:45:17.9    26.06
1994/278:09:45:24.8    26.08
1994/278:09:45:31.7    26.10
1994/278:09:45:38.5    26.11
1994/278:09:45:45.4    26.13