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: 134.32 Site Name: Mahantango A0, Pennsylvania Site ID: HB0 No. of Ancillary Data Records: 17 GMT Roll Angle 1994/281:16:30:03.0 206.02 1994/281:16:30:09.8 206.02 1994/281:16:30:16.7 206.01 1994/281:16:30:23.6 206.00 1994/281:16:30:30.4 206.01 1994/281:16:30:37.3 206.03 1994/281:16:30:44.1 206.05 1994/281:16:30:51.0 206.05 1994/281:16:30:57.9 206.05 1994/281:16:31:04.7 206.06 1994/281:16:31:11.6 206.05 1994/281:16:31:18.5 206.05 1994/281:16:31:25.3 206.04 1994/281:16:31:32.2 206.04 1994/281:16:31:39.0 206.04 1994/281:16:31:45.9 206.04 1994/281:16:31:52.8 206.04