M01 Spacecraft Orientation CK File for Extended, 2015-01 ... 2015-03 =========================================================================== Created by Boris Semenov, NAIF/JPL, Thu Jun 4 15:46:16 PDT 2015 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 ------------------------ ------------------------ 2015-JAN-01 00:00:04.560 2015-MAR-31 23:59:55.563 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: naif0011.tls ORB1_SCLKSCET.00210.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_2015-01-01.bc m01_sc_2015-01-02.bc m01_sc_2015-01-03.bc m01_sc_2015-01-04.bc m01_sc_2015-01-05.bc m01_sc_2015-01-06.bc m01_sc_2015-01-07.bc m01_sc_2015-01-08.bc m01_sc_2015-01-09.bc m01_sc_2015-01-10.bc m01_sc_2015-01-11.bc m01_sc_2015-01-12.bc m01_sc_2015-01-13.bc m01_sc_2015-01-14.bc m01_sc_2015-01-15.bc m01_sc_2015-01-16.bc m01_sc_2015-01-17.bc m01_sc_2015-01-18.bc m01_sc_2015-01-19.bc m01_sc_2015-01-20.bc m01_sc_2015-01-21.bc m01_sc_2015-01-22.bc m01_sc_2015-01-23.bc m01_sc_2015-01-24.bc m01_sc_2015-01-25.bc m01_sc_2015-01-26.bc m01_sc_2015-01-27.bc m01_sc_2015-01-28.bc m01_sc_2015-01-29.bc m01_sc_2015-01-30.bc m01_sc_2015-01-31.bc m01_sc_2015-02-01.bc m01_sc_2015-02-02.bc m01_sc_2015-02-03.bc m01_sc_2015-02-04.bc m01_sc_2015-02-05.bc m01_sc_2015-02-06.bc m01_sc_2015-02-07.bc m01_sc_2015-02-08.bc m01_sc_2015-02-09.bc m01_sc_2015-02-10.bc m01_sc_2015-02-11.bc m01_sc_2015-02-12.bc m01_sc_2015-02-13.bc m01_sc_2015-02-14.bc m01_sc_2015-02-15.bc m01_sc_2015-02-16.bc m01_sc_2015-02-17.bc m01_sc_2015-02-18.bc m01_sc_2015-02-19.bc m01_sc_2015-02-20.bc m01_sc_2015-02-21.bc m01_sc_2015-02-22.bc m01_sc_2015-02-23.bc m01_sc_2015-02-24.bc m01_sc_2015-02-25.bc m01_sc_2015-02-26.bc m01_sc_2015-02-27.bc m01_sc_2015-02-28.bc m01_sc_2015-03-01.bc m01_sc_2015-03-02.bc m01_sc_2015-03-03.bc m01_sc_2015-03-04.bc m01_sc_2015-03-05.bc m01_sc_2015-03-06.bc m01_sc_2015-03-07.bc m01_sc_2015-03-08.bc m01_sc_2015-03-09.bc m01_sc_2015-03-10.bc m01_sc_2015-03-11.bc m01_sc_2015-03-12.bc m01_sc_2015-03-13.bc m01_sc_2015-03-14.bc m01_sc_2015-03-15.bc m01_sc_2015-03-16.bc m01_sc_2015-03-17.bc m01_sc_2015-03-18.bc m01_sc_2015-03-19.bc m01_sc_2015-03-20.bc m01_sc_2015-03-21.bc m01_sc_2015-03-22.bc m01_sc_2015-03-23.bc m01_sc_2015-03-24.bc m01_sc_2015-03-25.bc m01_sc_2015-03-26.bc m01_sc_2015-03-27.bc m01_sc_2015-03-28.bc m01_sc_2015-03-29.bc m01_sc_2015-03-30.bc m01_sc_2015-03-31.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 N0065 Summary for: m01_sc_ext42.bc Segment No.: 1 Object: -53000 Interval Begin UTC Interval End UTC AV ------------------------ ------------------------ --- 2015-JAN-01 00:00:04.560 2015-JAN-02 08:52:54.689 Y 2015-JAN-02 08:54:29.990 2015-JAN-02 08:54:47.990 Y 2015-JAN-02 08:59:59.986 2015-JAN-02 09:07:53.981 Y 2015-JAN-02 09:09:05.981 2015-JAN-02 09:09:29.981 Y 2015-JAN-02 09:10:53.977 2015-JAN-02 09:13:41.977 Y 2015-JAN-02 09:15:17.977 2015-JAN-02 09:15:35.977 Y 2015-JAN-02 09:43:35.960 2015-JAN-02 09:44:41.960 Y 2015-JAN-02 09:49:09.256 2015-JAN-06 00:56:39.553 Y Segment No.: 2 Object: -53000 Interval Begin UTC Interval End UTC AV ------------------------ ------------------------ --- 2015-JAN-06 00:56:39.553 2015-JAN-09 05:00:03.924 Y 2015-JAN-09 05:02:51.924 2015-JAN-09 06:43:59.363 Y 2015-JAN-09 06:45:15.863 2015-JAN-09 07:20:15.841 Y 2015-JAN-09 07:23:21.841 2015-JAN-11 03:06:29.373 Y Segment No.: 3 Object: -53000 Interval Begin UTC Interval End UTC AV ------------------------ ------------------------ --- 2015-JAN-11 03:06:29.373 2015-JAN-13 09:43:07.809 Y 2015-JAN-13 09:50:03.805 2015-JAN-13 09:55:45.902 Y 2015-JAN-13 10:00:39.898 2015-JAN-16 07:03:31.800 Y Segment No.: 4 Object: -53000 Interval Begin UTC Interval End UTC AV ------------------------ ------------------------ --- 2015-JAN-16 07:03:31.800 2015-JAN-21 08:30:38.892 Y Segment No.: 5 Object: -53000 Interval Begin UTC Interval End UTC AV ------------------------ ------------------------ --- 2015-JAN-21 08:30:38.892 2015-JAN-22 13:34:43.836 Y 2015-JAN-22 15:14:19.079 2015-JAN-26 15:59:47.549 Y Segment No.: 6 Object: -53000 Interval Begin UTC Interval End UTC AV ------------------------ ------------------------ --- 2015-JAN-26 15:59:47.549 2015-JAN-31 19:00:56.751 Y Segment No.: 7 Object: -53000 Interval Begin UTC Interval End UTC AV ------------------------ ------------------------ --- 2015-JAN-31 19:00:56.751 2015-FEB-01 04:51:21.595 Y 2015-FEB-01 04:59:11.286 2015-FEB-01 06:40:33.530 Y 2015-FEB-01 06:42:15.530 2015-FEB-01 06:43:21.623 Y 2015-FEB-01 06:45:51.529 2015-FEB-01 07:01:51.513 Y 2015-FEB-01 07:05:57.512 2015-FEB-05 23:27:46.999 Y Segment No.: 8 Object: -53000 Interval Begin UTC Interval End UTC AV ------------------------ ------------------------ --- 2015-FEB-05 23:27:46.999 2015-FEB-11 03:12:59.678 Y Segment No.: 9 Object: -53000 Interval Begin UTC Interval End UTC AV ------------------------ ------------------------ --- 2015-FEB-11 03:12:59.678 2015-FEB-15 02:38:25.497 Y 2015-FEB-15 03:01:31.484 2015-FEB-16 18:26:59.356 Y Segment No.: 10 Object: -53000 Interval Begin UTC Interval End UTC AV ------------------------ ------------------------ --- 2015-FEB-16 18:26:59.356 2015-FEB-21 20:21:38.492 Y Segment No.: 11 Object: -53000 Interval Begin UTC Interval End UTC AV ------------------------ ------------------------ --- 2015-FEB-21 20:21:38.492 2015-FEB-22 10:56:43.677 Y 2015-FEB-22 16:00:45.993 2015-FEB-23 08:12:05.726 Y 2015-FEB-23 08:27:14.815 2015-FEB-23 08:29:22.814 Y 2015-FEB-23 08:30:23.713 2015-FEB-23 08:30:23.713 Y 2015-FEB-23 08:31:35.713 2015-FEB-24 15:12:41.529 Y 2015-FEB-24 15:20:07.025 2015-FEB-27 04:27:52.373 Y Segment No.: 12 Object: -53000 Interval Begin UTC Interval End UTC AV ------------------------ ------------------------ --- 2015-FEB-27 04:27:52.373 2015-MAR-01 07:02:20.803 Y 2015-MAR-01 07:13:54.591 2015-MAR-01 07:57:00.565 Y 2015-MAR-01 07:58:48.565 2015-MAR-04 01:14:11.179 Y Segment No.: 13 Object: -53000 Interval Begin UTC Interval End UTC AV ------------------------ ------------------------ --- 2015-MAR-04 01:14:11.179 2015-MAR-09 00:59:40.561 Y Segment No.: 14 Object: -53000 Interval Begin UTC Interval End UTC AV ------------------------ ------------------------ --- 2015-MAR-09 00:59:40.561 2015-MAR-14 01:35:56.571 Y Segment No.: 15 Object: -53000 Interval Begin UTC Interval End UTC AV ------------------------ ------------------------ --- 2015-MAR-14 01:35:56.571 2015-MAR-19 04:01:36.282 Y Segment No.: 16 Object: -53000 Interval Begin UTC Interval End UTC AV ------------------------ ------------------------ --- 2015-MAR-19 04:01:36.282 2015-MAR-24 06:26:19.942 Y Segment No.: 17 Object: -53000 Interval Begin UTC Interval End UTC AV ------------------------ ------------------------ --- 2015-MAR-24 06:26:19.942 2015-MAR-25 16:45:22.996 Y 2015-MAR-25 16:53:00.991 2015-MAR-29 08:13:48.499 Y Segment No.: 18 Object: -53000 Interval Begin UTC Interval End UTC AV ------------------------ ------------------------ --- 2015-MAR-29 08:13:48.499 2015-MAR-31 23:59:55.563 Y