M01 Spacecraft Orientation CK File for Extended, 2017-10 ... 2017-12 =========================================================================== Created by Boris Semenov, NAIF/JPL, Thu Feb 15 15:56:11 PST 2018 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 Extended phase of the mission: Coverage Begin UTC Coverage End UTC ------------------------ ------------------------ 2017-OCT-01 00:00:01.432 2017-DEC-31 23:59:56.156 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: naif0012.tls ORB1_SCLKSCET.00228.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_2017-10-01.bc m01_sc_2017-10-02.bc m01_sc_2017-10-03.bc m01_sc_2017-10-04.bc m01_sc_2017-10-05.bc m01_sc_2017-10-06.bc m01_sc_2017-10-07.bc m01_sc_2017-10-08.bc m01_sc_2017-10-09.bc m01_sc_2017-10-10.bc m01_sc_2017-10-11.bc m01_sc_2017-10-12.bc m01_sc_2017-10-13.bc m01_sc_2017-10-14.bc m01_sc_2017-10-15.bc m01_sc_2017-10-16.bc m01_sc_2017-10-17.bc m01_sc_2017-10-18.bc m01_sc_2017-10-19.bc m01_sc_2017-10-20.bc m01_sc_2017-10-21.bc m01_sc_2017-10-22.bc m01_sc_2017-10-23.bc m01_sc_2017-10-24.bc m01_sc_2017-10-25.bc m01_sc_2017-10-26.bc m01_sc_2017-10-27.bc m01_sc_2017-10-28.bc m01_sc_2017-10-29.bc m01_sc_2017-10-30.bc m01_sc_2017-10-31.bc m01_sc_2017-11-01.bc m01_sc_2017-11-02.bc m01_sc_2017-11-03.bc m01_sc_2017-11-04.bc m01_sc_2017-11-05.bc m01_sc_2017-11-06.bc m01_sc_2017-11-07.bc m01_sc_2017-11-08.bc m01_sc_2017-11-09.bc m01_sc_2017-11-10.bc m01_sc_2017-11-11.bc m01_sc_2017-11-12.bc m01_sc_2017-11-13.bc m01_sc_2017-11-14.bc m01_sc_2017-11-15.bc m01_sc_2017-11-16.bc m01_sc_2017-11-17.bc m01_sc_2017-11-18.bc m01_sc_2017-11-19.bc m01_sc_2017-11-20.bc m01_sc_2017-11-21.bc m01_sc_2017-11-22.bc m01_sc_2017-11-23.bc m01_sc_2017-11-24.bc m01_sc_2017-11-25.bc m01_sc_2017-11-26.bc m01_sc_2017-11-27.bc m01_sc_2017-11-28.bc m01_sc_2017-11-29.bc m01_sc_2017-11-30.bc m01_sc_2017-12-01.bc m01_sc_2017-12-02.bc m01_sc_2017-12-03.bc m01_sc_2017-12-04.bc m01_sc_2017-12-05.bc m01_sc_2017-12-06.bc m01_sc_2017-12-07.bc m01_sc_2017-12-08.bc m01_sc_2017-12-09.bc m01_sc_2017-12-10.bc m01_sc_2017-12-11.bc m01_sc_2017-12-12.bc m01_sc_2017-12-13.bc m01_sc_2017-12-14.bc m01_sc_2017-12-15.bc m01_sc_2017-12-16.bc m01_sc_2017-12-17.bc m01_sc_2017-12-18.bc m01_sc_2017-12-19.bc m01_sc_2017-12-20.bc m01_sc_2017-12-21.bc m01_sc_2017-12-22.bc m01_sc_2017-12-23.bc m01_sc_2017-12-24.bc m01_sc_2017-12-25.bc m01_sc_2017-12-26.bc m01_sc_2017-12-27.bc m01_sc_2017-12-28.bc m01_sc_2017-12-29.bc m01_sc_2017-12-30.bc m01_sc_2017-12-31.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 6.1.0, June 27, 2014 -- Toolkit Version N0066 Summary for: m01_sc_ext53.bc Segment No.: 1 Object: -53000 Interval Begin UTC Interval End UTC AV ------------------------ ------------------------ --- 2017-OCT-01 00:00:01.432 2017-OCT-04 06:59:37.197 Y 2017-OCT-04 07:08:32.294 2017-OCT-05 03:33:51.577 Y 2017-OCT-05 03:40:45.572 2017-OCT-06 02:00:11.571 Y Segment No.: 2 Object: -53000 Interval Begin UTC Interval End UTC AV ------------------------ ------------------------ --- 2017-OCT-06 02:00:11.571 2017-OCT-11 03:36:41.318 Y Segment No.: 3 Object: -53000 Interval Begin UTC Interval End UTC AV ------------------------ ------------------------ --- 2017-OCT-11 03:36:41.318 2017-OCT-12 06:54:22.097 Y 2017-OCT-12 12:19:20.055 2017-OCT-15 04:49:04.361 Y 2017-OCT-15 05:28:18.535 2017-OCT-16 12:42:32.133 Y Segment No.: 4 Object: -53000 Interval Begin UTC Interval End UTC AV ------------------------ ------------------------ --- 2017-OCT-16 12:42:32.133 2017-OCT-21 11:35:09.002 Y Segment No.: 5 Object: -53000 Interval Begin UTC Interval End UTC AV ------------------------ ------------------------ --- 2017-OCT-21 11:35:09.002 2017-OCT-23 01:40:51.992 Y 2017-OCT-23 02:07:18.874 2017-OCT-26 11:17:03.830 Y Segment No.: 6 Object: -53000 Interval Begin UTC Interval End UTC AV ------------------------ ------------------------ --- 2017-OCT-26 11:17:03.830 2017-OCT-27 12:45:19.182 Y 2017-OCT-27 13:56:36.729 2017-OCT-30 03:04:56.877 Y 2017-OCT-30 07:23:18.882 2017-OCT-30 07:31:40.174 Y 2017-OCT-30 07:37:06.869 2017-OCT-30 19:14:56.846 Y 2017-OCT-30 21:02:59.164 2017-OCT-30 23:23:17.059 Y 2017-OCT-30 23:33:05.051 2017-OCT-31 22:07:41.432 Y Segment No.: 7 Object: -53000 Interval Begin UTC Interval End UTC AV ------------------------ ------------------------ --- 2017-OCT-31 22:07:41.432 2017-NOV-06 00:22:56.884 Y Segment No.: 8 Object: -53000 Interval Begin UTC Interval End UTC AV ------------------------ ------------------------ --- 2017-NOV-06 00:22:56.884 2017-NOV-06 06:22:17.911 Y 2017-NOV-06 06:37:37.000 2017-NOV-11 03:06:17.366 Y 2017-NOV-11 03:09:11.366 2017-NOV-11 05:31:11.260 Y Segment No.: 9 Object: -53000 Interval Begin UTC Interval End UTC AV ------------------------ ------------------------ --- 2017-NOV-11 05:31:11.260 2017-NOV-16 08:23:07.292 Y Segment No.: 10 Object: -53000 Interval Begin UTC Interval End UTC AV ------------------------ ------------------------ --- 2017-NOV-16 08:23:07.292 2017-NOV-21 07:27:28.488 Y 2017-NOV-21 09:59:46.366 2017-NOV-21 20:56:00.365 Y Segment No.: 11 Object: -53000 Interval Begin UTC Interval End UTC AV ------------------------ ------------------------ --- 2017-NOV-21 20:56:00.365 2017-NOV-26 21:51:03.051 Y 2017-NOV-26 21:52:39.051 2017-NOV-27 00:06:26.946 Y Segment No.: 12 Object: -53000 Interval Begin UTC Interval End UTC AV ------------------------ ------------------------ --- 2017-NOV-27 00:06:26.946 2017-NOV-27 07:06:02.622 Y 2017-NOV-27 07:12:55.118 2017-DEC-01 15:26:58.890 Y 2017-DEC-01 15:35:46.882 2017-DEC-01 15:35:46.882 Y 2017-DEC-01 15:37:46.882 2017-DEC-01 15:56:40.865 Y 2017-DEC-01 15:59:28.865 2017-DEC-02 00:22:06.677 Y 2017-DEC-02 00:26:30.673 2017-DEC-02 03:44:54.525 Y Segment No.: 13 Object: -53000 Interval Begin UTC Interval End UTC AV ------------------------ ------------------------ --- 2017-DEC-02 03:44:54.525 2017-DEC-07 06:57:20.313 Y Segment No.: 14 Object: -53000 Interval Begin UTC Interval End UTC AV ------------------------ ------------------------ --- 2017-DEC-07 06:57:20.313 2017-DEC-12 09:46:52.538 Y Segment No.: 15 Object: -53000 Interval Begin UTC Interval End UTC AV ------------------------ ------------------------ --- 2017-DEC-12 09:46:52.538 2017-DEC-14 16:50:17.994 Y 2017-DEC-14 17:02:44.486 2017-DEC-16 17:33:24.752 Y 2017-DEC-16 17:39:13.447 2017-DEC-17 11:43:48.215 Y Segment No.: 16 Object: -53000 Interval Begin UTC Interval End UTC AV ------------------------ ------------------------ --- 2017-DEC-17 11:43:48.215 2017-DEC-22 13:32:01.830 Y 2017-DEC-22 13:33:55.830 2017-DEC-22 15:19:37.746 Y Segment No.: 17 Object: -53000 Interval Begin UTC Interval End UTC AV ------------------------ ------------------------ --- 2017-DEC-22 15:19:37.746 2017-DEC-24 21:31:46.373 Y 2017-DEC-24 21:43:07.462 2017-DEC-27 17:00:26.702 Y Segment No.: 18 Object: -53000 Interval Begin UTC Interval End UTC AV ------------------------ ------------------------ --- 2017-DEC-27 17:00:26.702 2017-DEC-31 23:59:56.156 Y