KPL/IK MAVEN SEP Instrument Kernel =============================================================================== This Instrument Kernel (IK) file contains parameters for MAVEN SEP instrument. Version and Date ------------------------------------------------------------------------------- Version 0.0 -- February 11, 2014 -- Davin Larson, MAVEN SEP Team References ------------------------------------------------------------------------------- 1. Kernel Pool Required Reading 2. GETFOV, getfoc_c, cspice_getfov headers 3. MAVEN FK file, latest version 4. Contact Information ------------------------------------------------------------------------------- Davin Larson, MAVEN SEP, 510-642-7558, davin@ssl.berkeley.edu Implementation Notes ------------------------------------------------------------------------------- This file is used by the SPICE system as follows: programs that make use of this kernel must ``load'' the kernel, normally during program initialization. The SPICE routine FURNSH loads a kernel file into the pool as shown below. CALL FURNSH ( 'frame_kernel_name; ) -- FORTRAN furnsh_c ( "frame_kernel_name" ); -- C cspice_furnsh, frame_kernel_name -- IDL cspice_furnsh( 'frame_kernel_name' ) -- MATLAB Once the file has been loaded, the SPICE routine GETFOV (getfov_c in C, cspice_getfov in IDL and MATLAB) can be used to retrieve FOV parameters for a given instrument or structure. This file was created and may be updated with a text editor or word processor. Naming Conventions ---------------------------------------------------------- All names referencing values in this IK file start with the characters `INS' followed by the NAIF MAVEN ID number (-202) followed by a NAIF three digit ID code for SEP or one of its detectors or components. This is the full list of names and IDs described by this IK file: MAVEN_SEP1 -202120 MAVEN_SEP1_FWD1 -202121 MAVEN_SEP1_FWD2 -202122 MAVEN_SEP1_AFT1 -202123 MAVEN_SEP1_AFT2 -202124 MAVEN_SEP2 -202125 MAVEN_SEP2_FWD1 -202126 MAVEN_SEP2_FWD2 -202127 MAVEN_SEP2_AFT1 -202128 MAVEN_SEP2_AFT2 -202129 The remainder of the keyword name is an underscore character followed by the unique name of the data item. For example, the -202129 boresight direction provided as a part of its FOV definition is specified by: INS-202129_BORESIGHT The upper bound on the length of the name of any data item is 32 characters. If the same item is included in more than one file, or if the same item appears more than once within a single file, the latest value supersedes any earlier values. Mounting Alignment -------------------------------------------------------- Refer to the latest version of the MAVEN Frames Definition Kernel (FK) [3] for the MAVEN structures reference frame definitions and mounting alignment information. Instrument Description --------------------------------------------------------- SEP consists of two separate sensors: SEP1 and SEP2. Each Sensor detects energetic electrons and ions using Solid State planer Silicon detectors. Each sensor is a dual, double ended telescope. Each double ended telescope has 2 FOVs: one primarily intended for electrons and an oppositely directed FOV for ions. When combined with the adjacent telescope, each sensor sees both ions and electrons in the forward and aft direction. Instrument FOV Definition(s) ---------------------------------------------------------- This section defines the following FOVs: ID SHAPE FRAME SIZE1 SIZE2 BSIGHT ------- -------- --------------------- ----- ----- ------ -202121 RECTANGLE MAVEN_SEP2 50. 41. +X -202122 RECTANGLE MAVEN_SEP2 50. 41. +X -202123 RECTANGLE MAVEN_SEP2 50. 41. -X -202124 RECTANGLE MAVEN_SEP2 50. 41. -X -202126 RECTANGLE MAVEN_SEP1 50. 41. +X -202127 RECTANGLE MAVEN_SEP1 50. 41. +X -202128 RECTANGLE MAVEN_SEP1 50. 41. -X -202129 RECTANGLE MAVEN_SEP1 50. 41. -X The FOVs are defined in this data block. \begindata INS-202121_FOV_CLASS_SPEC = 'ANGLES' INS-202121_FOV_SHAPE = 'RECTANGLE' INS-202121_FOV_FRAME = 'MAVEN_SEP1' INS-202121_BORESIGHT = ( 1.0, 0.0, 0.0 ) INS-202121_FOV_REF_VECTOR = ( 0.0, 0.0, 1.0 ) INS-202121_FOV_REF_ANGLE = ( 20.5 ) INS-202121_FOV_CROSS_ANGLE = ( 25.0 ) INS-202121_FOV_ANGLE_UNITS = ( 'DEGREES' ) INS-202122_FOV_CLASS_SPEC = 'ANGLES' INS-202122_FOV_SHAPE = 'RECTANGLE' INS-202122_FOV_FRAME = 'MAVEN_SEP1' INS-202122_BORESIGHT = ( 1.0, 0.0, 0.0 ) INS-202122_FOV_REF_VECTOR = ( 0.0, 0.0, 1.0 ) INS-202122_FOV_REF_ANGLE = ( 20.5 ) INS-202122_FOV_CROSS_ANGLE = ( 25.0 ) INS-202122_FOV_ANGLE_UNITS = ( 'DEGREES' ) INS-202123_FOV_CLASS_SPEC = 'ANGLES' INS-202123_FOV_SHAPE = 'RECTANGLE' INS-202123_FOV_FRAME = 'MAVEN_SEP1' INS-202123_BORESIGHT = ( -1.0, 0.0, 0.0 ) INS-202123_FOV_REF_VECTOR = ( 0.0, 0.0, 1.0 ) INS-202123_FOV_REF_ANGLE = ( 20.5 ) INS-202123_FOV_CROSS_ANGLE = ( 25.0 ) INS-202123_FOV_ANGLE_UNITS = ( 'DEGREES' ) INS-202124_FOV_CLASS_SPEC = 'ANGLES' INS-202124_FOV_SHAPE = 'RECTANGLE' INS-202124_FOV_FRAME = 'MAVEN_SEP1' INS-202124_BORESIGHT = ( -1.0, 0.0, 0.0 ) INS-202124_FOV_REF_VECTOR = ( 0.0, 0.0, 1.0 ) INS-202124_FOV_REF_ANGLE = ( 20.5 ) INS-202124_FOV_CROSS_ANGLE = ( 25.0 ) INS-202124_FOV_ANGLE_UNITS = ( 'DEGREES' ) INS-202126_FOV_CLASS_SPEC = 'ANGLES' INS-202126_FOV_SHAPE = 'RECTANGLE' INS-202126_FOV_FRAME = 'MAVEN_SEP2' INS-202126_BORESIGHT = ( 1.0, 0.0, 0.0 ) INS-202126_FOV_REF_VECTOR = ( 0.0, 0.0, 1.0 ) INS-202126_FOV_REF_ANGLE = ( 20.5 ) INS-202126_FOV_CROSS_ANGLE = ( 25.0 ) INS-202126_FOV_ANGLE_UNITS = ( 'DEGREES' ) INS-202127_FOV_CLASS_SPEC = 'ANGLES' INS-202127_FOV_SHAPE = 'RECTANGLE' INS-202127_FOV_FRAME = 'MAVEN_SEP2' INS-202127_BORESIGHT = ( 1.0, 0.0, 0.0 ) INS-202127_FOV_REF_VECTOR = ( 0.0, 0.0, 1.0 ) INS-202127_FOV_REF_ANGLE = ( 20.5 ) INS-202127_FOV_CROSS_ANGLE = ( 25.0 ) INS-202127_FOV_ANGLE_UNITS = ( 'DEGREES' ) INS-202128_FOV_CLASS_SPEC = 'ANGLES' INS-202128_FOV_SHAPE = 'RECTANGLE' INS-202128_FOV_FRAME = 'MAVEN_SEP2' INS-202128_BORESIGHT = ( -1.0, 0.0, 0.0 ) INS-202128_FOV_REF_VECTOR = ( 0.0, 0.0, 1.0 ) INS-202128_FOV_REF_ANGLE = ( 20.5 ) INS-202128_FOV_CROSS_ANGLE = ( 25.0 ) INS-202128_FOV_ANGLE_UNITS = ( 'DEGREES' ) INS-202129_FOV_CLASS_SPEC = 'ANGLES' INS-202129_FOV_SHAPE = 'RECTANGLE' INS-202129_FOV_FRAME = 'MAVEN_SEP2' INS-202129_BORESIGHT = ( -1.0, 0.0, 0.0 ) INS-202129_FOV_REF_VECTOR = ( 0.0, 0.0, 1.0 ) INS-202129_FOV_REF_ANGLE = ( 20.5 ) INS-202129_FOV_CROSS_ANGLE = ( 25.0 ) INS-202129_FOV_ANGLE_UNITS = ( 'DEGREES' ) \begintext End of the IK file.