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: 38.41 Site Name: Washington D.C. Site ID: T12 No. of Ancillary Data Records: 8 GMT Roll Angle 1994/275:18:31:35.0 25.95 1994/275:18:31:41.9 25.96 1994/275:18:31:48.7 25.93 1994/275:18:31:55.6 25.94 1994/275:18:32:02.5 25.93 1994/275:18:32:09.4 25.93 1994/275:18:32:16.3 25.94 1994/275:18:32:23.2 25.94