M01 Spacecraft Orientation CK File for Aerobraking, 2001-11 =========================================================================== Created by Boris Semenov, NAIF/JPL, Thu Mar 14 07:38:34 PST 2002 Orientation Data in the File -------------------------------------------------------- This file contains orientation and angular velocity data for the Mars-01 Odyssey (M01) spacecraft frame, 'M01_SPACECRAFT', relative to the 'MARSIAU' inertial frame. The NAIF ID code for the 'M01_SPACECRAFT' frame is -53000. Status -------------------------------------------------------- This file was created by NAIF for archiving with the Planetary Data System (PDS) from daily CK files produced by NAIF Team, 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 spacecraft frame orientation relative to the 'MARSIAU' inertial frame. The orientation was computed, converted to quaternions and filtered on-board; filtered quaternions were transmitted to the Earth in the channelized telemetry. On the ground quaternions were extracted from telemetry and written to daily CK files using the MSOPCK program. The individual daily files were merged together to provide complete coverage on a mission/monthly phase basis. 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 Aerobraking phase of the mission: Coverage Begin UTC Coverage End UTC ------------------------ ------------------------ 2001-NOV-01 00:00:01.780 2001-NOV-30 23:59:59.726 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 quaternion time spacing in the telemetry stream varied from a fraction of a second to 3-4 seconds between adjacent data points. Considering that the s/c was nominally nadir pointed for all science data collection periods and three axis stabilized from most other operation regimes, the duration of the longest interval over which the data may be interpolated was set to 60 seconds. For all requests for data falling between two adjacent data points separated by more than 60 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 is provided at the end of these comments. Angular Rate Data Note -------------------------------------------------------- Data records in this file do not contain actual angular rates computed on-board because the angular rates were not available in all telemetry packets containing quaternions. Instead, the angular rates stored in the file were "manufactured" by MSOPCK program using an assumption that the spacecraft was rotating at a constant rate between each two orientations specified by neighbor quaternions. 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. Related Kernels -------------------------------------------------------- This file was created using the following LSK and SCLK files: naif0007.tls ORB1_SCLKSCET.00028.tsc Contacts -------------------------------------------------------- If you have any questions 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_sc_2001-11-01.bc m01_sc_2001-11-02.bc m01_sc_2001-11-03.bc m01_sc_2001-11-04.bc m01_sc_2001-11-05.bc m01_sc_2001-11-06.bc m01_sc_2001-11-07.bc m01_sc_2001-11-08.bc m01_sc_2001-11-09.bc m01_sc_2001-11-10.bc m01_sc_2001-11-11.bc m01_sc_2001-11-12.bc m01_sc_2001-11-13.bc m01_sc_2001-11-14.bc m01_sc_2001-11-15.bc m01_sc_2001-11-16.bc m01_sc_2001-11-17.bc m01_sc_2001-11-18.bc m01_sc_2001-11-19.bc m01_sc_2001-11-20.bc m01_sc_2001-11-21.bc m01_sc_2001-11-22.bc m01_sc_2001-11-23.bc m01_sc_2001-11-24.bc m01_sc_2001-11-25.bc m01_sc_2001-11-26.bc m01_sc_2001-11-27.bc m01_sc_2001-11-29.bc m01_sc_2001-11-30.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: N0052a. Summary for: m01_sc_ab0111.bc Segment No.: 1 Object: -53000 Interval Begin UTC Interval End UTC AV ------------------------ ------------------------ --- 2001-NOV-01 00:00:01.780 2001-NOV-01 03:50:43.758 Y 2001-NOV-01 03:52:59.559 2001-NOV-01 05:18:55.747 Y 2001-NOV-01 05:20:07.548 2001-NOV-01 05:30:43.746 Y 2001-NOV-01 05:32:51.547 2001-NOV-01 21:28:55.658 Y 2001-NOV-01 21:32:07.458 2001-NOV-01 21:44:47.457 Y 2001-NOV-01 21:46:54.656 2001-NOV-01 22:23:51.454 Y 2001-NOV-01 22:25:43.450 2001-NOV-02 04:59:55.626 Y 2001-NOV-02 05:04:43.426 2001-NOV-02 21:44:49.526 Y 2001-NOV-02 21:46:54.526 2001-NOV-03 01:33:01.500 Y 2001-NOV-03 01:35:07.300 2001-NOV-03 08:25:01.463 Y Segment No.: 2 Object: -53000 Interval Begin UTC Interval End UTC AV ------------------------ ------------------------ --- 2001-NOV-03 08:25:01.463 2001-NOV-03 10:41:19.448 Y 2001-NOV-03 10:42:22.550 2001-NOV-03 13:49:02.437 Y 2001-NOV-03 13:50:15.238 2001-NOV-03 14:29:51.235 Y 2001-NOV-03 14:32:07.234 2001-NOV-03 19:29:43.207 Y 2001-NOV-03 19:48:25.307 2001-NOV-03 21:29:01.400 Y 2001-NOV-03 21:30:22.400 2001-NOV-03 21:40:51.200 Y 2001-NOV-03 21:43:03.200 2001-NOV-04 05:30:55.354 Y 2001-NOV-04 05:32:59.155 2001-NOV-04 13:31:11.109 Y 2001-NOV-04 13:32:19.109 2001-NOV-04 21:29:03.063 Y 2001-NOV-04 21:30:11.063 2001-NOV-04 21:40:55.265 Y 2001-NOV-04 21:43:07.062 2001-NOV-05 07:13:43.219 Y 2001-NOV-05 07:16:13.219 2001-NOV-05 14:24:58.981 Y 2001-NOV-05 14:27:37.180 2001-NOV-05 17:54:26.961 Y Segment No.: 3 Object: -53000 Interval Begin UTC Interval End UTC AV ------------------------ ------------------------ --- 2001-NOV-05 17:54:26.961 2001-NOV-05 21:35:01.138 Y 2001-NOV-05 21:36:55.138 2001-NOV-06 00:47:31.119 Y 2001-NOV-06 00:58:22.919 2001-NOV-06 05:16:01.098 Y 2001-NOV-06 05:20:30.894 2001-NOV-06 13:44:10.846 Y 2001-NOV-06 13:46:06.846 2001-NOV-06 13:54:49.045 Y 2001-NOV-06 13:56:25.044 2001-NOV-06 14:25:02.843 Y 2001-NOV-06 14:27:10.843 2001-NOV-06 17:24:46.825 Y 2001-NOV-06 17:27:26.824 2001-NOV-07 11:12:45.919 Y 2001-NOV-07 11:14:12.919 2001-NOV-07 14:20:06.705 Y 2001-NOV-07 14:22:30.705 2001-NOV-07 21:29:17.862 Y 2001-NOV-07 21:38:58.658 2001-NOV-08 04:05:46.721 Y 2001-NOV-08 04:06:58.619 2001-NOV-08 04:33:01.019 Y Segment No.: 4 Object: -53000 Interval Begin UTC Interval End UTC AV ------------------------ ------------------------ --- 2001-NOV-08 04:33:01.019 2001-NOV-08 13:39:18.769 Y 2001-NOV-08 13:40:22.566 2001-NOV-08 14:20:06.762 Y 2001-NOV-08 14:23:09.761 2001-NOV-08 20:44:54.727 Y 2001-NOV-08 20:47:14.524 2001-NOV-09 04:35:25.779 Y 2001-NOV-09 04:36:46.478 2001-NOV-09 04:38:18.677 Y 2001-NOV-09 04:40:12.677 2001-NOV-09 13:08:42.625 Y 2001-NOV-09 13:10:22.426 2001-NOV-09 19:20:45.693 Y 2001-NOV-09 19:23:30.392 2001-NOV-09 21:36:13.576 Y 2001-NOV-09 21:38:24.576 2001-NOV-10 05:14:42.532 Y 2001-NOV-10 05:16:12.532 2001-NOV-10 13:34:26.285 Y 2001-NOV-10 13:35:34.285 2001-NOV-10 14:26:18.281 Y Segment No.: 5 Object: -53000 Interval Begin UTC Interval End UTC AV ------------------------ ------------------------ --- 2001-NOV-10 14:26:18.281 2001-NOV-10 17:19:26.263 Y 2001-NOV-10 17:21:34.263 2001-NOV-10 21:00:38.242 Y 2001-NOV-10 21:02:54.241 2001-NOV-11 12:33:26.155 Y 2001-NOV-11 12:35:25.452 2001-NOV-11 13:01:18.751 Y 2001-NOV-11 13:03:51.751 2001-NOV-11 13:52:14.149 Y 2001-NOV-11 16:10:53.431 2001-NOV-12 03:47:25.274 Y 2001-NOV-12 03:48:34.070 2001-NOV-12 14:10:22.013 Y 2001-NOV-12 14:14:30.013 2001-NOV-12 18:53:25.983 Y 2001-NOV-12 18:54:37.983 2001-NOV-12 21:41:24.169 Y 2001-NOV-12 21:43:33.969 2001-NOV-13 01:55:57.942 Y Segment No.: 6 Object: -53000 Interval Begin UTC Interval End UTC AV ------------------------ ------------------------ --- 2001-NOV-13 01:55:57.942 2001-NOV-13 05:25:37.921 Y 2001-NOV-13 05:30:33.921 2001-NOV-13 09:41:13.897 Y 2001-NOV-13 09:43:13.897 2001-NOV-13 18:54:21.842 Y 2001-NOV-13 18:58:41.841 2001-NOV-13 21:41:25.824 Y 2001-NOV-13 21:43:33.824 2001-NOV-14 00:16:18.007 Y 2001-NOV-14 00:18:33.808 2001-NOV-14 05:26:25.776 Y 2001-NOV-14 05:28:41.776 2001-NOV-14 14:05:29.922 Y 2001-NOV-14 14:10:11.922 2001-NOV-14 14:41:13.716 Y 2001-NOV-14 14:42:23.919 2001-NOV-15 11:36:21.594 Y Segment No.: 7 Object: -53000 Interval Begin UTC Interval End UTC AV ------------------------ ------------------------ --- 2001-NOV-15 11:36:21.594 2001-NOV-15 13:29:37.581 Y 2001-NOV-15 13:30:47.784 2001-NOV-15 14:05:33.578 Y 2001-NOV-15 14:07:57.578 2001-NOV-15 21:41:33.530 Y 2001-NOV-15 21:45:25.530 2001-NOV-16 05:26:35.689 Y 2001-NOV-16 05:28:53.490 2001-NOV-16 08:39:47.670 Y 2001-NOV-16 08:45:08.970 2001-NOV-16 11:25:35.657 Y 2001-NOV-16 11:27:53.457 2001-NOV-16 14:00:35.640 Y 2001-NOV-16 14:02:57.441 2001-NOV-16 21:41:37.393 Y 2001-NOV-16 21:43:41.393 2001-NOV-17 20:20:17.481 Y Segment No.: 8 Object: -53000 Interval Begin UTC Interval End UTC AV ------------------------ ------------------------ --- 2001-NOV-17 20:20:17.481 2001-NOV-17 21:41:41.475 Y 2001-NOV-17 21:43:49.275 2001-NOV-18 05:26:41.442 Y 2001-NOV-18 05:29:17.238 2001-NOV-19 01:37:45.151 Y 2001-NOV-19 01:39:53.151 2001-NOV-19 09:05:25.115 Y 2001-NOV-19 09:22:29.114 2001-NOV-19 13:24:53.294 Y 2001-NOV-19 13:26:49.196 2001-NOV-19 13:55:47.292 Y 2001-NOV-19 13:57:49.092 2001-NOV-20 04:53:36.225 Y Segment No.: 9 Object: -53000 Interval Begin UTC Interval End UTC AV ------------------------ ------------------------ --- 2001-NOV-20 04:53:36.225 2001-NOV-20 13:20:00.981 Y 2001-NOV-20 13:21:40.981 2001-NOV-20 13:50:48.979 Y 2001-NOV-20 13:53:04.979 2001-NOV-21 13:50:53.068 Y 2001-NOV-21 13:52:59.068 2001-NOV-21 21:41:53.031 Y 2001-NOV-21 21:44:00.832 2001-NOV-22 00:07:48.820 Y 2001-NOV-22 00:31:11.018 2001-NOV-22 00:37:52.818 Y 2001-NOV-22 00:39:16.818 2001-NOV-22 00:55:53.016 Y 2001-NOV-22 00:57:48.113 2001-NOV-22 01:41:44.813 Y 2001-NOV-22 01:44:59.012 2001-NOV-22 03:46:05.002 Y 2001-NOV-22 03:47:23.002 2001-NOV-22 12:12:36.763 Y 2001-NOV-22 12:17:15.962 2001-NOV-22 13:50:56.759 Y 2001-NOV-22 13:53:08.759 2001-NOV-22 13:56:24.759 Y Segment No.: 10 Object: -53000 Interval Begin UTC Interval End UTC AV ------------------------ ------------------------ --- 2001-NOV-22 13:56:24.759 2001-NOV-22 21:31:52.930 Y 2001-NOV-22 21:34:40.726 2001-NOV-23 13:46:00.650 Y 2001-NOV-23 13:48:04.649 2001-NOV-23 21:42:00.612 Y 2001-NOV-23 21:44:08.612 2001-NOV-24 13:15:10.745 Y 2001-NOV-24 13:17:04.542 2001-NOV-24 13:46:00.641 Y 2001-NOV-24 13:48:20.543 2001-NOV-24 21:09:16.708 Y Segment No.: 11 Object: -53000 Interval Begin UTC Interval End UTC AV ------------------------ ------------------------ --- 2001-NOV-24 21:09:16.708 2001-NOV-24 21:42:04.705 Y 2001-NOV-24 21:44:28.506 2001-NOV-24 22:26:52.702 Y 2001-NOV-24 22:27:56.502 2001-NOV-25 21:32:00.389 Y 2001-NOV-25 21:34:16.389 2001-NOV-26 05:27:10.547 Y 2001-NOV-26 05:29:28.547 2001-NOV-26 07:24:22.538 Y 2001-NOV-26 07:30:32.436 2001-NOV-26 13:41:10.504 Y 2001-NOV-26 13:43:20.305 2001-NOV-26 20:56:04.473 Y 2001-NOV-26 20:58:40.274 2001-NOV-27 04:20:24.235 Y Segment No.: 12 Object: -53000 Interval Begin UTC Interval End UTC AV ------------------------ ------------------------ --- 2001-NOV-27 04:20:24.235 2001-NOV-27 05:42:12.229 Y 2001-NOV-27 05:44:22.432 2001-NOV-27 13:36:12.187 Y 2001-NOV-27 13:38:28.187 2001-NOV-27 20:56:16.352 Y 2001-NOV-27 20:58:19.352 2001-NOV-27 23:59:58.333 Y 2001-NOV-29 00:00:00.009 2001-NOV-29 13:36:22.132 Y 2001-NOV-29 13:38:43.932 2001-NOV-29 21:30:31.887 Y 2001-NOV-29 21:34:43.887 2001-NOV-30 11:51:51.999 Y Segment No.: 13 Object: -53000 Interval Begin UTC Interval End UTC AV ------------------------ ------------------------ --- 2001-NOV-30 11:51:51.999 2001-NOV-30 13:05:31.794 Y 2001-NOV-30 13:10:07.793 2001-NOV-30 13:31:23.792 Y 2001-NOV-30 13:36:42.990 2001-NOV-30 23:12:45.933 Y 2001-NOV-30 23:14:39.734 2001-NOV-30 23:59:59.726 Y