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: 83.12 Site Name: Chickasha, Oklahoma Site ID: G12 No. of Ancillary Data Records: 13 GMT Roll Angle 1994/278:12:49:13.0 25.94 1994/278:12:49:19.9 25.94 1994/278:12:49:26.7 25.93 1994/278:12:49:33.6 25.93 1994/278:12:49:40.5 25.93 1994/278:12:49:47.4 25.94 1994/278:12:49:54.2 25.96 1994/278:12:50:01.1 25.96 1994/278:12:50:08.0 25.98 1994/278:12:50:14.9 25.98 1994/278:12:50:21.7 26.01 1994/278:12:50:28.6 26.02 1994/278:12:50:35.5 26.04