M01 High Gain Antenna Orientation CK File for Mapping, 2002-10 ... 2002-12 =========================================================================== Created by Boris Semenov, NAIF/JPL, Wed Jan 15 07:55:52 PST 2003 Orientation Data in the File -------------------------------------------------------- This file contains orientation and angular rate data for the Mars'01 Odyssey (M01) High Gain Antenna (HGA) Inner and Outer gimbal frames. The orientation of the 'M01_HGA_INNER_GIMBAL' is given with respect to the 'M01_HGA_BOOM' frame; orientation of the 'M01_HGA_OUTER_GIMBAL' is given with respect to the 'M01_HGA_INNER_GIMBAL' frame. The NAIF IDs for the 'M01_HGA_INNER_GIMBAL' and 'M01_HGA_OUTER_GIMBAL' frames are -53211 and -53212. Status -------------------------------------------------------- This file was created by NAIF for archiving with the Planetary Data System (PDS) from daily CK files produced by NAIF, JPL. Pedigree -------------------------------------------------------- The original CK files used to create this file were officially delivered to the M01 project by the NAIF Team. These files contained the inner gimbal frame orientation with respect to the HGA boom frame and the outer gimbal frame orientation with respect to the inner gimbal frame. The orientation was computed on the ground from the HGA gimbal angles extracted from the channelized telemetry sent down by the spacecraft. The individual daily CK files were merged together to provide coverage for a complete or a portion of a particular phase of the mission. A table containing the complete list of original CK files from which data were included in this file is provided at the end of these comments. Approximate Time Coverage -------------------------------------------------------- This file covers the following interval of the Mapping phase of the mission: Coverage Begin UTC Coverage End UTC ------------------------ ------------------------ 2002-OCT-01 00:01:03.757 2002-DEC-31 23:58:40.604 This file is a type 3 CK file which provides linear interpolation between orientation data points extracted from telemetry. Such interpolation is not applied to the whole coverage of the file but only inside intervals where enough orientation telemetry data was available and orientation data points were close to each other in time for such interpolation to make sense. The nominal gimbal angle time spacing in the telemetry stream varied from one to a few seconds between adjacent data points. Considering that the antenna gimbal cannot rotate very fast and that the highest accuracy of the HGA orientation knowledge is unlikely to be needed in any application, the duration of the longest interval over which the data may be interpolated was set to 300 seconds. For all requests for data falling between two adjacent data points separated by more than 300 seconds the SPICELIB CK readers will return a logical flag stating "POINTING NOT FOUND". A table containing the complete list of valid interpolation intervals in the file segments is provided at the end of these comments. Angular Rate Data Note -------------------------------------------------------- Since M01 s/c engineering telemetry did not contain angular rate data for the gimbal, the angular rates stored in this file were computed from the orientation information. The angular rate for each orientation point was computed as average of two rates -- constant angular rate that would rotate from previous point to that point and constant angular rate that would rotate from that point to the next point. Because angular rates stored in two adjacent points in most cases are not the same, and CK readers linearly interpolate between them, the output angular rates in general will never be constant between any two adjacent data points stored in the file. Usage Note -------------------------------------------------------- In order to use this file an M01 SCLK file containing coefficients mapping M01 on-board time to ET must be loaded into a user's program. Loading an M01 Frames Kernel (FK) containing information that SPICE software need to combine gimbal orientations together will allow a user to get the combined orientation through the high level SPICE Toolkit interfaces. Related Kernels -------------------------------------------------------- This file was created using the following LSK and SCLK files: naif0007.tls ORB1_SCLKSCET.00054.tsc Contacts -------------------------------------------------------- If you have any question regarding this data contact NAIF at JPL: Charles H. Acton, Jr (818)-354-3869 chuck.acton@jpl.nasa.gov Boris V. Semenov (818)-354-8136 boris.semenov@jpl.nasa.gov Appendix 1: List of the original CK files -------------------------------------------------------- m01_hga_2002-10-01.bc m01_hga_2002-10-02.bc m01_hga_2002-10-03.bc m01_hga_2002-10-04.bc m01_hga_2002-10-05.bc m01_hga_2002-10-06.bc m01_hga_2002-10-07.bc m01_hga_2002-10-08.bc m01_hga_2002-10-09.bc m01_hga_2002-10-10.bc m01_hga_2002-10-11.bc m01_hga_2002-10-12.bc m01_hga_2002-10-13.bc m01_hga_2002-10-14.bc m01_hga_2002-10-15.bc m01_hga_2002-10-16.bc m01_hga_2002-10-17.bc m01_hga_2002-10-18.bc m01_hga_2002-10-19.bc m01_hga_2002-10-20.bc m01_hga_2002-10-21.bc m01_hga_2002-10-22.bc m01_hga_2002-10-23.bc m01_hga_2002-10-24.bc m01_hga_2002-10-25.bc m01_hga_2002-10-26.bc m01_hga_2002-10-27.bc m01_hga_2002-10-28.bc m01_hga_2002-10-29.bc m01_hga_2002-10-30.bc m01_hga_2002-10-31.bc m01_hga_2002-11-01.bc m01_hga_2002-11-02.bc m01_hga_2002-11-03.bc m01_hga_2002-11-04.bc m01_hga_2002-11-05.bc m01_hga_2002-11-06.bc m01_hga_2002-11-07.bc m01_hga_2002-11-08.bc m01_hga_2002-11-09.bc m01_hga_2002-11-10.bc m01_hga_2002-11-11.bc m01_hga_2002-11-12.bc m01_hga_2002-11-13.bc m01_hga_2002-11-14.bc m01_hga_2002-11-15.bc m01_hga_2002-11-16.bc m01_hga_2002-11-17.bc m01_hga_2002-11-18.bc m01_hga_2002-11-19.bc m01_hga_2002-11-20.bc m01_hga_2002-11-21.bc m01_hga_2002-11-22.bc m01_hga_2002-11-23.bc m01_hga_2002-11-24.bc m01_hga_2002-11-25.bc m01_hga_2002-11-26.bc m01_hga_2002-11-27.bc m01_hga_2002-11-28.bc m01_hga_2002-11-29.bc m01_hga_2002-11-30.bc m01_hga_2002-12-01.bc m01_hga_2002-12-02.bc m01_hga_2002-12-03.bc m01_hga_2002-12-04.bc m01_hga_2002-12-05.bc m01_hga_2002-12-06.bc m01_hga_2002-12-07.bc m01_hga_2002-12-08.bc m01_hga_2002-12-09.bc m01_hga_2002-12-10.bc m01_hga_2002-12-11.bc m01_hga_2002-12-12.bc m01_hga_2002-12-13.bc m01_hga_2002-12-14.bc m01_hga_2002-12-15.bc m01_hga_2002-12-16.bc m01_hga_2002-12-17.bc m01_hga_2002-12-18.bc m01_hga_2002-12-19.bc m01_hga_2002-12-20.bc m01_hga_2002-12-21.bc m01_hga_2002-12-22.bc m01_hga_2002-12-23.bc m01_hga_2002-12-24.bc m01_hga_2002-12-25.bc m01_hga_2002-12-26.bc m01_hga_2002-12-27.bc m01_hga_2002-12-28.bc m01_hga_2002-12-29.bc m01_hga_2002-12-30.bc m01_hga_2002-12-31.bc Appendix 2: Interpolation Intervals in the File -------------------------------------------------------- The information in this section has been generated by running CKBRIEF utility program using -dump -utc command line options. CKBRIEF Version: 2.0.0, 2001-05-16. SPICE Toolkit Version: N0054. Summary for: m01_hga_map4.bc Segment No.: 1 Object: -53211 Interval Begin UTC Interval End UTC AV ------------------------ ------------------------ --- 2002-OCT-01 00:01:03.757 2002-OCT-02 05:12:30.814 Y 2002-OCT-02 13:06:06.554 2002-OCT-03 20:43:39.217 Y 2002-OCT-03 22:42:05.447 2002-OCT-04 12:30:56.596 Y 2002-OCT-04 15:50:20.883 2002-OCT-04 22:26:29.175 Y 2002-OCT-04 23:22:26.739 2002-OCT-04 23:30:58.734 Y 2002-OCT-04 23:39:40.628 2002-OCT-05 18:10:04.228 Y 2002-OCT-05 18:50:36.204 2002-OCT-05 18:50:36.204 Y 2002-OCT-05 18:58:03.996 2002-OCT-06 06:03:25.244 Y 2002-OCT-06 06:41:17.224 2002-OCT-06 06:41:49.224 Y 2002-OCT-06 06:54:51.614 2002-OCT-09 14:15:12.751 Y 2002-OCT-09 14:39:53.042 2002-OCT-09 14:50:33.033 Y 2002-OCT-09 15:01:13.032 2002-OCT-10 02:07:45.275 Y 2002-OCT-10 02:19:36.665 2002-OCT-10 19:56:44.204 Y 2002-OCT-10 20:12:00.187 2002-OCT-13 15:48:05.921 Y 2002-OCT-13 19:29:57.805 2002-OCT-13 21:44:52.142 Y 2002-OCT-13 22:25:56.115 2002-OCT-13 22:26:12.115 Y 2002-OCT-13 22:32:46.360 2002-OCT-17 06:44:34.236 Y 2002-OCT-17 07:32:43.009 2002-OCT-18 10:24:03.156 Y 2002-OCT-18 11:32:02.215 2002-OCT-21 11:29:44.225 Y 2002-OCT-21 12:18:16.095 2002-OCT-22 15:10:51.242 Y 2002-OCT-22 15:50:35.223 2002-OCT-22 15:51:07.226 Y 2002-OCT-22 15:57:52.714 2002-OCT-22 22:58:54.788 Y 2002-OCT-23 05:54:54.569 2002-OCT-24 14:32:14.533 Y 2002-OCT-24 19:25:33.377 2002-OCT-28 03:29:57.244 Y 2002-OCT-28 04:12:53.122 2002-OCT-28 04:17:25.118 Y 2002-OCT-28 04:23:06.808 2002-OCT-28 15:03:37.993 Y 2002-OCT-29 04:59:22.036 2002-OCT-31 22:22:35.328 Y 2002-OCT-31 23:13:43.901 2002-NOV-03 17:32:44.309 Y 2002-NOV-03 21:31:17.687 2002-NOV-04 05:10:49.249 Y 2002-NOV-04 05:18:52.241 2002-NOV-05 02:43:37.584 Y 2002-NOV-05 03:32:41.555 2002-NOV-05 05:17:13.501 Y 2002-NOV-05 06:21:13.420 2002-NOV-05 06:21:13.420 Y 2002-NOV-05 06:38:17.411 2002-NOV-05 06:38:17.411 Y 2002-NOV-05 07:57:13.406 2002-NOV-07 20:29:17.851 Y 2002-NOV-07 21:02:37.836 2002-NOV-07 22:15:41.793 Y 2002-NOV-07 22:21:11.202 2002-NOV-14 11:51:14.288 Y 2002-NOV-14 12:00:17.904 2002-NOV-14 12:06:10.282 Y 2002-NOV-14 12:20:39.281 2002-NOV-15 02:10:21.235 Y 2002-NOV-15 02:54:05.121 2002-NOV-15 02:54:21.125 Y 2002-NOV-15 03:00:33.440 2002-NOV-15 21:55:41.238 Y 2002-NOV-15 22:39:57.128 2002-NOV-15 22:44:13.123 Y 2002-NOV-15 22:50:45.326 2002-NOV-16 19:09:04.209 Y 2002-NOV-17 01:15:09.203 2002-NOV-18 09:13:25.230 Y 2002-NOV-18 09:55:17.207 2002-NOV-18 09:55:49.207 Y 2002-NOV-18 10:04:43.401 2002-NOV-19 13:50:32.829 Y 2002-NOV-19 14:16:46.135 2002-NOV-20 22:25:24.638 Y 2002-NOV-21 08:07:40.856 2002-NOV-21 08:22:36.847 Y 2002-NOV-21 10:07:08.797 2002-NOV-21 10:07:08.797 Y 2002-NOV-21 10:28:28.783 2002-NOV-22 16:31:07.859 Y 2002-NOV-22 16:39:39.854 2002-NOV-22 16:39:39.854 Y 2002-NOV-22 16:46:03.854 2002-NOV-27 21:35:46.542 Y 2002-NOV-28 05:23:19.826 2002-NOV-28 11:21:43.646 Y 2002-NOV-28 11:28:48.223 2002-DEC-05 21:16:14.202 Y 2002-DEC-06 07:28:02.414 2002-DEC-06 21:11:33.898 Y 2002-DEC-07 07:07:45.323 2002-DEC-07 10:43:18.497 Y 2002-DEC-07 10:49:37.250 2002-DEC-07 15:29:43.261 Y 2002-DEC-07 16:12:23.237 2002-DEC-07 16:13:11.342 Y 2002-DEC-07 16:39:29.086 2002-DEC-09 12:34:29.181 Y 2002-DEC-09 12:40:31.739 2002-DEC-11 20:13:30.699 Y 2002-DEC-11 20:58:02.675 2002-DEC-11 21:02:02.674 Y 2002-DEC-12 07:07:41.793 2002-DEC-14 12:39:56.922 Y 2002-DEC-14 14:42:04.183 2002-DEC-15 09:07:31.132 Y Segment No.: 2 Object: -53211 Interval Begin UTC Interval End UTC AV ------------------------ ------------------------ --- 2002-DEC-15 09:07:31.132 2002-DEC-16 15:58:54.441 Y 2002-DEC-16 16:05:18.440 2002-DEC-16 16:48:36.424 Y 2002-DEC-16 17:31:32.404 2002-DEC-16 18:45:24.369 Y 2002-DEC-16 19:29:56.349 2002-DEC-16 20:02:26.127 Y 2002-DEC-17 05:38:02.375 2002-DEC-17 08:19:37.378 Y 2002-DEC-17 08:35:06.287 2002-DEC-17 10:13:50.722 Y 2002-DEC-17 10:32:26.236 2002-DEC-17 11:53:32.381 Y 2002-DEC-17 18:26:02.010 2002-DEC-18 12:13:57.185 Y 2002-DEC-18 13:12:25.472 2002-DEC-18 20:08:43.856 Y 2002-DEC-19 04:48:27.606 2002-DEC-19 05:13:19.095 Y 2002-DEC-19 05:25:13.008 2002-DEC-19 07:57:47.610 Y 2002-DEC-19 13:40:08.775 2002-DEC-20 11:36:48.137 Y 2002-DEC-20 12:04:08.142 2002-DEC-20 12:04:08.142 Y 2002-DEC-20 12:55:44.094 2002-DEC-20 13:01:51.191 Y 2002-DEC-20 17:34:47.980 2002-DEC-22 07:09:21.206 Y 2002-DEC-22 07:52:17.190 2002-DEC-22 07:53:37.186 Y 2002-DEC-22 08:03:02.900 2002-DEC-22 12:50:07.949 Y 2002-DEC-22 13:57:10.732 2002-DEC-22 18:21:42.608 Y 2002-DEC-22 18:28:05.588 2002-DEC-22 20:42:45.730 Y 2002-DEC-22 21:33:42.518 2002-DEC-23 08:48:05.190 Y 2002-DEC-23 09:32:37.178 2002-DEC-23 12:31:58.590 Y 2002-DEC-23 12:38:14.101 2002-DEC-27 01:42:16.237 Y 2002-DEC-27 02:27:20.213 2002-DEC-27 02:29:44.213 Y 2002-DEC-27 04:35:25.158 2002-DEC-28 05:23:45.285 Y 2002-DEC-28 06:06:41.269 2002-DEC-29 11:00:00.197 Y 2002-DEC-29 11:45:20.181 2002-DEC-30 10:42:23.264 Y 2002-DEC-30 11:34:09.564 2002-DEC-31 23:58:40.604 Y Segment No.: 3 Object: -53212 Interval Begin UTC Interval End UTC AV ------------------------ ------------------------ --- 2002-OCT-01 00:01:03.757 2002-OCT-02 05:12:30.814 Y 2002-OCT-02 13:06:06.554 2002-OCT-03 20:43:39.217 Y 2002-OCT-03 22:42:05.447 2002-OCT-04 12:30:56.596 Y 2002-OCT-04 15:50:20.883 2002-OCT-04 22:26:29.175 Y 2002-OCT-04 23:22:26.739 2002-OCT-04 23:30:58.734 Y 2002-OCT-04 23:39:40.628 2002-OCT-05 18:10:04.228 Y 2002-OCT-05 18:50:36.204 2002-OCT-05 18:50:36.204 Y 2002-OCT-05 18:58:03.996 2002-OCT-06 06:03:25.244 Y 2002-OCT-06 06:41:17.224 2002-OCT-06 06:41:49.224 Y 2002-OCT-06 06:54:51.614 2002-OCT-09 14:15:12.751 Y 2002-OCT-09 14:39:53.042 2002-OCT-09 14:50:33.033 Y 2002-OCT-09 15:01:13.032 2002-OCT-10 02:07:45.275 Y 2002-OCT-10 02:19:36.665 2002-OCT-10 19:56:44.204 Y 2002-OCT-10 20:12:00.187 2002-OCT-13 15:48:05.921 Y 2002-OCT-13 19:29:57.805 2002-OCT-13 21:44:52.142 Y 2002-OCT-13 22:25:56.115 2002-OCT-13 22:26:12.115 Y 2002-OCT-13 22:32:46.360 2002-OCT-17 06:44:34.236 Y 2002-OCT-17 07:32:43.009 2002-OCT-18 10:24:03.156 Y 2002-OCT-18 11:32:02.215 2002-OCT-21 11:29:44.225 Y 2002-OCT-21 12:18:16.095 2002-OCT-22 15:10:51.242 Y 2002-OCT-22 15:50:35.223 2002-OCT-22 15:51:07.226 Y 2002-OCT-22 15:57:52.714 2002-OCT-22 22:58:54.788 Y 2002-OCT-23 05:54:54.569 2002-OCT-24 14:32:14.533 Y 2002-OCT-24 19:25:33.377 2002-OCT-28 03:29:57.244 Y 2002-OCT-28 04:12:53.122 2002-OCT-28 04:17:25.118 Y 2002-OCT-28 04:23:06.808 2002-OCT-28 15:03:37.993 Y 2002-OCT-29 04:59:22.036 2002-OCT-31 22:22:35.328 Y 2002-OCT-31 23:13:43.901 2002-NOV-03 17:32:44.309 Y 2002-NOV-03 21:31:17.687 2002-NOV-04 05:10:49.249 Y 2002-NOV-04 05:18:52.241 2002-NOV-05 02:43:37.584 Y 2002-NOV-05 03:32:41.555 2002-NOV-05 05:17:13.501 Y 2002-NOV-05 06:21:13.420 2002-NOV-05 06:21:13.420 Y 2002-NOV-05 06:38:17.411 2002-NOV-05 06:38:17.411 Y 2002-NOV-05 07:57:13.406 2002-NOV-07 20:29:17.851 Y 2002-NOV-07 21:02:37.836 2002-NOV-07 22:15:41.793 Y 2002-NOV-07 22:21:11.202 2002-NOV-14 11:51:14.288 Y 2002-NOV-14 12:00:17.904 2002-NOV-14 12:06:10.282 Y 2002-NOV-14 12:20:39.281 2002-NOV-15 02:10:21.235 Y 2002-NOV-15 02:54:05.121 2002-NOV-15 02:54:21.125 Y 2002-NOV-15 03:00:33.440 2002-NOV-15 21:55:41.238 Y 2002-NOV-15 22:39:57.128 2002-NOV-15 22:44:13.123 Y 2002-NOV-15 22:50:45.326 2002-NOV-16 19:09:04.209 Y 2002-NOV-17 01:15:09.203 2002-NOV-18 09:13:25.230 Y 2002-NOV-18 09:55:17.207 2002-NOV-18 09:55:49.207 Y 2002-NOV-18 10:04:43.401 2002-NOV-19 13:50:32.829 Y 2002-NOV-19 14:16:46.135 2002-NOV-20 22:25:24.638 Y 2002-NOV-21 08:07:40.856 2002-NOV-21 08:22:36.847 Y 2002-NOV-21 10:07:08.797 2002-NOV-21 10:07:08.797 Y 2002-NOV-21 10:28:28.783 2002-NOV-22 16:31:07.859 Y 2002-NOV-22 16:39:39.854 2002-NOV-22 16:39:39.854 Y 2002-NOV-22 16:46:03.854 2002-NOV-27 21:35:46.542 Y 2002-NOV-28 05:23:19.826 2002-NOV-28 11:21:43.646 Y 2002-NOV-28 11:28:48.223 2002-DEC-05 21:16:14.202 Y 2002-DEC-06 07:28:02.414 2002-DEC-06 21:11:33.898 Y 2002-DEC-07 07:07:45.323 2002-DEC-07 10:43:18.497 Y 2002-DEC-07 10:49:37.250 2002-DEC-07 15:29:43.261 Y 2002-DEC-07 16:12:23.237 2002-DEC-07 16:13:11.342 Y 2002-DEC-07 16:39:29.086 2002-DEC-09 12:34:29.181 Y 2002-DEC-09 12:40:31.739 2002-DEC-11 20:13:30.699 Y 2002-DEC-11 20:58:02.675 2002-DEC-11 21:02:02.674 Y 2002-DEC-12 07:07:41.793 2002-DEC-14 12:39:56.922 Y 2002-DEC-14 14:42:04.183 2002-DEC-15 09:07:31.132 Y Segment No.: 4 Object: -53212 Interval Begin UTC Interval End UTC AV ------------------------ ------------------------ --- 2002-DEC-15 09:07:31.132 2002-DEC-16 15:58:54.441 Y 2002-DEC-16 16:05:18.440 2002-DEC-16 16:48:36.424 Y 2002-DEC-16 17:31:32.404 2002-DEC-16 18:45:24.369 Y 2002-DEC-16 19:29:56.349 2002-DEC-16 20:02:26.127 Y 2002-DEC-17 05:38:02.375 2002-DEC-17 08:19:37.378 Y 2002-DEC-17 08:35:06.287 2002-DEC-17 10:13:50.722 Y 2002-DEC-17 10:32:26.236 2002-DEC-17 11:53:32.381 Y 2002-DEC-17 18:26:02.010 2002-DEC-18 12:13:57.185 Y 2002-DEC-18 13:12:25.472 2002-DEC-18 20:08:43.856 Y 2002-DEC-19 04:48:27.606 2002-DEC-19 05:13:19.095 Y 2002-DEC-19 05:25:13.008 2002-DEC-19 07:57:47.610 Y 2002-DEC-19 13:40:08.775 2002-DEC-20 11:36:48.137 Y 2002-DEC-20 12:04:08.142 2002-DEC-20 12:04:08.142 Y 2002-DEC-20 12:55:44.094 2002-DEC-20 13:01:51.191 Y 2002-DEC-20 17:34:47.980 2002-DEC-22 07:09:21.206 Y 2002-DEC-22 07:52:17.190 2002-DEC-22 07:53:37.186 Y 2002-DEC-22 08:03:02.900 2002-DEC-22 12:50:07.949 Y 2002-DEC-22 13:57:10.732 2002-DEC-22 18:21:42.608 Y 2002-DEC-22 18:28:05.588 2002-DEC-22 20:42:45.730 Y 2002-DEC-22 21:33:42.518 2002-DEC-23 08:48:05.190 Y 2002-DEC-23 09:32:37.178 2002-DEC-23 12:31:58.590 Y 2002-DEC-23 12:38:14.101 2002-DEC-27 01:42:16.237 Y 2002-DEC-27 02:27:20.213 2002-DEC-27 02:29:44.213 Y 2002-DEC-27 04:35:25.158 2002-DEC-28 05:23:45.285 Y 2002-DEC-28 06:06:41.269 2002-DEC-29 11:00:00.197 Y 2002-DEC-29 11:45:20.181 2002-DEC-30 10:42:23.264 Y 2002-DEC-30 11:34:09.564 2002-DEC-31 23:58:40.604 Y