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: 113.10 Site Name: Chulchaca, Yucatan Mexico Site ID: E58 No. of Ancillary Data Records: 33 GMT Roll Angle 1994/106:08:49:44.0 26.08 1994/106:08:49:50.8 26.09 1994/106:08:49:57.7 26.10 1994/106:08:50:04.6 26.09 1994/106:08:50:11.4 26.08 1994/106:08:50:18.3 26.09 1994/106:08:50:25.2 26.07 1994/106:08:50:32.0 26.04 1994/106:08:50:38.9 26.01 1994/106:08:50:45.7 25.99 1994/106:08:50:52.6 25.96 1994/106:08:50:59.5 25.94 1994/106:08:51:06.3 25.92 1994/106:08:51:13.2 25.91 1994/106:08:51:20.1 25.90 1994/106:08:51:26.9 25.92 1994/106:08:51:33.8 25.93 1994/106:08:51:40.6 25.95 1994/106:08:51:47.5 25.96 1994/106:08:51:54.4 25.98 1994/106:08:52:01.2 25.99 1994/106:08:52:08.1 26.00 1994/106:08:52:15.0 26.02 1994/106:08:52:21.8 26.04 1994/106:08:52:28.7 26.07 1994/106:08:52:35.5 26.07 1994/106:08:52:42.4 26.05 1994/106:08:52:49.3 26.04 1994/106:08:52:56.1 26.04 1994/106:08:53:03.0 26.04 1994/106:08:53:09.9 26.04 1994/106:08:53:16.7 26.05 1994/106:08:53:23.6 26.06