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: 65.21 Site Name: Mahantango A0, Pennsylvania Site ID: HB0 No. of Ancillary Data Records: 17 GMT Roll Angle 1994/277:10:08:32.0 206.11 1994/277:10:08:38.9 206.10 1994/277:10:08:45.7 206.09 1994/277:10:08:52.6 206.09 1994/277:10:08:59.5 206.07 1994/277:10:09:06.4 206.06 1994/277:10:09:13.2 206.07 1994/277:10:09:20.1 206.07 1994/277:10:09:27.0 206.07 1994/277:10:09:33.9 206.08 1994/277:10:09:40.7 206.08 1994/277:10:09:47.6 206.09 1994/277:10:09:54.5 206.11 1994/277:10:10:01.4 206.10 1994/277:10:10:08.3 206.09 1994/277:10:10:15.1 206.07 1994/277:10:10:22.0 206.08