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: 29.21 Site Name: El Oued, Sahara Algeria Site ID: G89 No. of Ancillary Data Records: 28 GMT Roll Angle 1994/275:04:48:57.0 206.12 1994/275:04:49:03.9 206.13 1994/275:04:49:10.7 206.13 1994/275:04:49:17.6 206.13 1994/275:04:49:24.5 206.13 1994/275:04:49:31.4 206.14 1994/275:04:49:38.2 206.15 1994/275:04:49:45.1 206.14 1994/275:04:49:52.0 206.13 1994/275:04:49:58.9 206.14 1994/275:04:50:05.7 206.13 1994/275:04:50:12.6 206.13 1994/275:04:50:19.5 206.13 1994/275:04:50:26.4 206.14 1994/275:04:50:33.2 206.15 1994/275:04:50:40.1 206.11 1994/275:04:50:47.0 206.09 1994/275:04:50:53.9 206.08 1994/275:04:51:00.8 206.06 1994/275:04:51:07.6 206.05 1994/275:04:51:14.5 206.04 1994/275:04:51:21.4 206.04 1994/275:04:51:28.3 206.02 1994/275:04:51:35.1 206.03 1994/275:04:51:42.0 206.04 1994/275:04:51:48.9 206.03 1994/275:04:51:55.8 206.03 1994/275:04:52:02.6 206.04