MEX ASPERA Scanner Example, [] "seconds-per-scan" Rate =========================================================================== Orientation Data in the File (Segment) -------------------------------------------------------- This example CK file contains orientation of the MEX ASPERA Sensor Assembly frame, MEX_ASPERA_SAF (NAIF ID -41111), relative to MEX ASPERA Unit Reference Frame, MEX_ASPERA_URF (NAIF ID -41110). The orientation provided in this file is for the scanner moving at [] "seconds-per-scan" rate. Status -------------------------------------------------------- This file is a special example orientation CK file. It was made to illustrate how a CK representing the scanner orientation can be made from a series of time-tagged scanners angles. Pedigree -------------------------------------------------------- This file was generated manually by running MSOPCK program on the input containing rotation from the 'MEX_ASPERA_URF' to 'MEX_ASPERA_SAF' frame. The rotation represented continuous scanning -- from scanner position "0" to position "180" and back without any delay at the end points -- with [] "seconds-per-scan" rate. Approximate Time Coverage -------------------------------------------------------- This file is a type 3 CK file (segment) providing continuous pointing during the whole interval covered by the file. It covers from the start time to the stop time specified in the segment summary provided at the end of these comments. Usage Note -------------------------------------------------------- In order to use this file a MEX SCLK file, containing coefficients mapping MEX on-board time to ET, standard LSK file, providing UTC to ET mapping, and MEX Frame Definitions file must be loaded into a user's program. Contacts -------------------------------------------------------- If you have any questions regarding this data contact NAIF at JPL: Boris V. Semenov (818)-354-8136 boris.semenov@jpl.nasa.gov Appendix 1 -- MSOPCK Inputs -------------------------------------------------------- \begindata LSK_FILE_NAME = 'naif0007.tls' SCLK_FILE_NAME = 'mex_030915_step.tsc' FRAMES_FILE_NAME = 'mex_v05.tf' INTERNAL_FILE_NAME = 'ASPERA Scanner CK' CK_TYPE = 3 CK_SEGMENT_ID = 'ASPERA Scanner Orientation' INSTRUMENT_ID = -41111 REFERENCE_FRAME_NAME = 'MEX_ASPERA_URF' ANGULAR_RATE_PRESENT = 'MAKE UP/NO AVERAGING' MAXIMUM_VALID_INTERVAL = 600 INPUT_TIME_TYPE = 'UTC' INPUT_DATA_TYPE = 'EULER ANGLES' EULER_ANGLE_UNITS = 'DEGREES' EULER_ROTATIONS_ORDER = ( 'Z' 'Y' 'X' ) PRODUCER_ID = 'Boris Semenov, NAIF/JPL' \begintext Appendix 2 -- File/Segment Metainformation --------------------------------------------------------