M01 Spacecraft Orientation CK File for Extended, 2009-01 ... 2009-03 =========================================================================== Created by Boris Semenov, NAIF/JPL, Sun May 10 11:49:31 PDT 2009 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 ------------------------ ------------------------ 2009-JAN-01 00:00:01.934 2009-MAR-31 23:59:59.118 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: naif0009.tls ORB1_SCLKSCET.00160.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_2009-01-01.bc m01_sc_2009-01-02.bc m01_sc_2009-01-03.bc m01_sc_2009-01-04.bc m01_sc_2009-01-05.bc m01_sc_2009-01-06.bc m01_sc_2009-01-07.bc m01_sc_2009-01-08.bc m01_sc_2009-01-09.bc m01_sc_2009-01-10.bc m01_sc_2009-01-11.bc m01_sc_2009-01-12.bc m01_sc_2009-01-13.bc m01_sc_2009-01-14.bc m01_sc_2009-01-15.bc m01_sc_2009-01-16.bc m01_sc_2009-01-17.bc m01_sc_2009-01-18.bc m01_sc_2009-01-19.bc m01_sc_2009-01-20.bc m01_sc_2009-01-21.bc m01_sc_2009-01-22.bc m01_sc_2009-01-23.bc m01_sc_2009-01-24.bc m01_sc_2009-01-25.bc m01_sc_2009-01-26.bc m01_sc_2009-01-27.bc m01_sc_2009-01-28.bc m01_sc_2009-01-29.bc m01_sc_2009-01-30.bc m01_sc_2009-01-31.bc m01_sc_2009-02-01.bc m01_sc_2009-02-02.bc m01_sc_2009-02-03.bc m01_sc_2009-02-04.bc m01_sc_2009-02-05.bc m01_sc_2009-02-06.bc m01_sc_2009-02-07.bc m01_sc_2009-02-08.bc m01_sc_2009-02-09.bc m01_sc_2009-02-10.bc m01_sc_2009-02-11.bc m01_sc_2009-02-12.bc m01_sc_2009-02-13.bc m01_sc_2009-02-14.bc m01_sc_2009-02-15.bc m01_sc_2009-02-16.bc m01_sc_2009-02-17.bc m01_sc_2009-02-18.bc m01_sc_2009-02-19.bc m01_sc_2009-02-20.bc m01_sc_2009-02-21.bc m01_sc_2009-02-22.bc m01_sc_2009-02-23.bc m01_sc_2009-02-24.bc m01_sc_2009-02-25.bc m01_sc_2009-02-26.bc m01_sc_2009-02-27.bc m01_sc_2009-02-28.bc m01_sc_2009-03-01.bc m01_sc_2009-03-02.bc m01_sc_2009-03-03.bc m01_sc_2009-03-04.bc m01_sc_2009-03-05.bc m01_sc_2009-03-06.bc m01_sc_2009-03-07.bc m01_sc_2009-03-08.bc m01_sc_2009-03-09.bc m01_sc_2009-03-10.bc m01_sc_2009-03-11.bc m01_sc_2009-03-12.bc m01_sc_2009-03-13.bc m01_sc_2009-03-14.bc m01_sc_2009-03-15.bc m01_sc_2009-03-16.bc m01_sc_2009-03-17.bc m01_sc_2009-03-18.bc m01_sc_2009-03-19.bc m01_sc_2009-03-20.bc m01_sc_2009-03-21.bc m01_sc_2009-03-22.bc m01_sc_2009-03-23.bc m01_sc_2009-03-24.bc m01_sc_2009-03-25.bc m01_sc_2009-03-26.bc m01_sc_2009-03-27.bc m01_sc_2009-03-28.bc m01_sc_2009-03-29.bc m01_sc_2009-03-30.bc m01_sc_2009-03-31.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 5.0.0, February 11, 2009 -- Toolkit Version N0063 Summary for: m01_sc_ext18.bc Segment No.: 1 Object: -53000 Interval Begin UTC Interval End UTC AV ------------------------ ------------------------ --- 2009-JAN-01 00:00:01.934 2009-JAN-03 04:41:45.091 Y 2009-JAN-03 08:17:07.290 2009-JAN-03 08:17:07.290 Y 2009-JAN-03 08:20:31.290 2009-JAN-03 08:21:31.290 Y 2009-JAN-03 08:26:49.285 2009-JAN-03 08:26:49.285 Y 2009-JAN-03 08:36:19.284 2009-JAN-06 06:30:02.781 Y Segment No.: 2 Object: -53000 Interval Begin UTC Interval End UTC AV ------------------------ ------------------------ --- 2009-JAN-06 06:30:02.781 2009-JAN-07 00:02:58.045 Y 2009-JAN-07 00:05:34.045 2009-JAN-11 09:19:27.311 Y Segment No.: 3 Object: -53000 Interval Begin UTC Interval End UTC AV ------------------------ ------------------------ --- 2009-JAN-11 09:19:27.311 2009-JAN-16 15:46:29.218 Y Segment No.: 4 Object: -53000 Interval Begin UTC Interval End UTC AV ------------------------ ------------------------ --- 2009-JAN-16 15:46:29.218 2009-JAN-18 02:42:41.406 Y 2009-JAN-18 07:24:20.696 2009-JAN-18 16:48:47.877 Y 2009-JAN-18 16:49:53.877 2009-JAN-18 19:06:23.825 Y 2009-JAN-18 21:55:23.758 2009-JAN-18 22:40:47.742 Y 2009-JAN-18 22:42:59.741 2009-JAN-22 01:07:11.228 Y Segment No.: 5 Object: -53000 Interval Begin UTC Interval End UTC AV ------------------------ ------------------------ --- 2009-JAN-22 01:07:11.228 2009-JAN-22 23:50:08.708 Y 2009-JAN-23 07:29:26.536 2009-JAN-25 10:03:56.494 Y 2009-JAN-25 10:05:26.494 2009-JAN-27 10:02:14.322 Y Segment No.: 6 Object: -53000 Interval Begin UTC Interval End UTC AV ------------------------ ------------------------ --- 2009-JAN-27 10:02:14.322 2009-JAN-27 17:21:21.062 Y 2009-JAN-27 18:17:15.045 2009-JAN-27 19:00:21.025 Y 2009-JAN-27 19:04:27.025 2009-JAN-28 15:09:06.786 Y 2009-JAN-28 15:14:03.680 2009-JAN-28 15:57:15.562 Y 2009-JAN-28 15:59:18.765 2009-FEB-01 04:26:15.339 Y 2009-FEB-01 14:54:41.912 2009-FEB-02 02:06:35.673 Y Segment No.: 7 Object: -53000 Interval Begin UTC Interval End UTC AV ------------------------ ------------------------ --- 2009-FEB-02 02:06:35.673 2009-FEB-07 02:10:41.735 Y 2009-FEB-07 02:29:39.730 2009-FEB-07 04:12:41.693 Y Segment No.: 8 Object: -53000 Interval Begin UTC Interval End UTC AV ------------------------ ------------------------ --- 2009-FEB-07 04:12:41.693 2009-FEB-07 22:36:57.810 Y 2009-FEB-07 22:39:21.810 2009-FEB-12 06:15:37.869 Y Segment No.: 9 Object: -53000 Interval Begin UTC Interval End UTC AV ------------------------ ------------------------ --- 2009-FEB-12 06:15:37.869 2009-FEB-17 07:50:19.193 Y Segment No.: 10 Object: -53000 Interval Begin UTC Interval End UTC AV ------------------------ ------------------------ --- 2009-FEB-17 07:50:19.193 2009-FEB-22 11:24:47.326 Y Segment No.: 11 Object: -53000 Interval Begin UTC Interval End UTC AV ------------------------ ------------------------ --- 2009-FEB-22 11:24:47.326 2009-FEB-26 09:41:17.262 Y 2009-FEB-26 10:40:45.444 2009-FEB-27 15:04:14.785 Y Segment No.: 12 Object: -53000 Interval Begin UTC Interval End UTC AV ------------------------ ------------------------ --- 2009-FEB-27 15:04:14.785 2009-FEB-28 12:43:34.360 Y 2009-FEB-28 17:00:09.180 2009-MAR-04 21:07:00.618 Y Segment No.: 13 Object: -53000 Interval Begin UTC Interval End UTC AV ------------------------ ------------------------ --- 2009-MAR-04 21:07:00.618 2009-MAR-10 01:57:38.391 Y Segment No.: 14 Object: -53000 Interval Begin UTC Interval End UTC AV ------------------------ ------------------------ --- 2009-MAR-10 01:57:38.391 2009-MAR-11 19:57:21.133 Y 2009-MAR-11 20:29:17.119 2009-MAR-11 20:30:33.118 Y 2009-MAR-11 20:32:41.118 2009-MAR-11 21:11:41.099 Y 2009-MAR-11 21:15:02.567 2009-MAR-12 21:28:36.550 Y 2009-MAR-12 22:11:08.538 2009-MAR-12 22:12:24.538 Y 2009-MAR-12 22:14:24.538 2009-MAR-12 23:27:16.515 Y 2009-MAR-13 02:25:54.272 2009-MAR-13 06:17:25.903 Y 2009-MAR-13 06:52:59.193 2009-MAR-13 07:23:49.287 Y 2009-MAR-13 08:09:25.869 2009-MAR-16 03:27:35.253 Y Segment No.: 15 Object: -53000 Interval Begin UTC Interval End UTC AV ------------------------ ------------------------ --- 2009-MAR-16 03:27:35.253 2009-MAR-21 02:23:27.054 Y Segment No.: 16 Object: -53000 Interval Begin UTC Interval End UTC AV ------------------------ ------------------------ --- 2009-MAR-21 02:23:27.054 2009-MAR-22 19:36:25.733 Y 2009-MAR-22 22:15:02.384 2009-MAR-25 05:53:19.589 Y 2009-MAR-25 06:38:51.573 2009-MAR-25 06:39:11.573 Y 2009-MAR-25 06:40:19.573 2009-MAR-25 06:40:27.573 Y 2009-MAR-25 06:42:39.573 2009-MAR-25 06:42:47.573 Y 2009-MAR-25 06:46:23.971 2009-MAR-25 06:59:11.970 Y 2009-MAR-25 07:38:24.955 2009-MAR-26 07:32:20.428 Y Segment No.: 17 Object: -53000 Interval Begin UTC Interval End UTC AV ------------------------ ------------------------ --- 2009-MAR-26 07:32:20.428 2009-MAR-30 06:25:44.288 Y 2009-MAR-30 07:27:42.771 2009-MAR-31 04:07:27.288 Y Segment No.: 18 Object: -53000 Interval Begin UTC Interval End UTC AV ------------------------ ------------------------ --- 2009-MAR-31 04:07:27.288 2009-MAR-31 23:59:59.118 Y