KPL/IK Europa Clipper Medium Gain Antenna Instrument Kernel ============================================================================== This instrument kernel (I-kernel) contains Field-Of-View (FOV) and other geometric parameter definitions for the Medium Gain Antenna (MGA). Version and Date ---------------------------------------------------------- Version 0.2 -- February 26, 2018 -- Boris Semenov, NAIF Reformatted and updated comments. Version 0.1 -- January 9, 2014 -- Eric W. Ferguson, JPL Initial version. References ---------------------------------------------------------- 1. ``Kernel Pool Required Reading'' 2. ``C-kernel Required Reading'' Contact Information ---------------------------------------------------------- Eric W. Ferguson, JPL, (818)-634-1928, eric.w.ferguson@jpl.nasa.gov Boris V. Semenov, JPL, (818)-354-8136, boris.semenov@jpl.nasa.gov 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. Conventions for Specifying Data ---------------------------------------------------------- All names referencing values in this I-kernel start with the characters `INS' followed by the NAIF ID code for the particular instrument detector or keep out zone: EUROPAM_MGA -159060 The remainder of the name is an underscore character followed by the unique name of the data item. For example, the MGA boresight direction is specified by: INS-159060_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. Instrument Description ---------------------------------------------------------- Mounting Alignment ---------------------------------------------------------- Refer to the latest version of the Europa Mission Frames Definition Kernel (FK) for reference frame definitions and mounting alignment information. Medium Gain Antenna FOV Definition ---------------------------------------------------------- The MGA has a circular FOV with 10.0 degree half angular extent centered in the Z axis of the MGA frame. \begindata INS-159060_FOV_FRAME = 'EUROPAM_MGA' INS-159060_FOV_SHAPE = 'CIRCLE' INS-159060_BORESIGHT = ( 0.0, 0.0, 1.0 ) INS-159060_FOV_CLASS_SPEC = 'ANGLES' INS-159060_FOV_REF_VECTOR = ( 1.0, 0.0, 0.0 ) INS-159060_FOV_REF_ANGLE = ( 10.0 ) INS-159060_FOV_ANGLE_UNITS = 'DEGREES' \begintext End of IK.