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: 49.11 Site Name: Chimalapas, Mexico Site ID: E13 No. of Ancillary Data Records: 14 GMT Roll Angle 1994/276:10:20:54.0 206.07 1994/276:10:21:00.8 206.05 1994/276:10:21:07.7 206.05 1994/276:10:21:14.6 206.04 1994/276:10:21:21.4 206.02 1994/276:10:21:28.3 206.02 1994/276:10:21:35.2 206.02 1994/276:10:21:42.0 206.02 1994/276:10:21:48.9 206.03 1994/276:10:21:55.8 206.04 1994/276:10:22:02.6 206.04 1994/276:10:22:09.5 206.05 1994/276:10:22:16.4 206.05 1994/276:10:22:23.2 206.06