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: 58.61 Site Name: Nyiragongo, Zaire Site ID: G1I No. of Ancillary Data Records: 21 GMT Roll Angle 1994/277:01:03:08.0 206.08 1994/277:01:03:14.8 206.07 1994/277:01:03:21.7 206.08 1994/277:01:03:28.6 206.07 1994/277:01:03:35.4 206.07 1994/277:01:03:42.3 206.08 1994/277:01:03:49.1 206.07 1994/277:01:03:56.0 206.08 1994/277:01:04:02.9 206.09 1994/277:01:04:09.7 206.08 1994/277:01:04:16.6 206.07 1994/277:01:04:23.5 206.04 1994/277:01:04:30.3 206.02 1994/277:01:04:37.2 206.01 1994/277:01:04:44.0 206.00 1994/277:01:04:50.9 205.98 1994/277:01:04:57.8 205.98 1994/277:01:05:04.6 205.98 1994/277:01:05:11.5 205.98 1994/277:01:05:18.3 206.00 1994/277:01:05:25.2 206.00