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: 118.32 Site Name: Mahantango A0, Pennsylvania Site ID: HB0 No. of Ancillary Data Records: 17 GMT Roll Angle 1994/280:16:53:02.0 206.09 1994/280:16:53:08.8 206.10 1994/280:16:53:15.7 206.09 1994/280:16:53:22.6 206.10 1994/280:16:53:29.4 206.06 1994/280:16:53:36.3 206.06 1994/280:16:53:43.1 206.04 1994/280:16:53:50.0 206.03 1994/280:16:53:56.9 206.01 1994/280:16:54:03.7 206.01 1994/280:16:54:10.6 206.00 1994/280:16:54:17.5 205.99 1994/280:16:54:24.3 206.02 1994/280:16:54:31.2 206.01 1994/280:16:54:38.0 206.02 1994/280:16:54:44.9 206.01 1994/280:16:54:51.8 206.02