KPL/IK MIXS Instrument kernel =========================================================================== This instrument kernel (I-kernel) contains BepiColombo MIXS optics, detector, and field-of-view parameters for the two telescopes (MIXS-T and MIXS-C) that made up the instrument. Version and Date --------------------------------------------------------------------------- The TEXT_KERNEL_ID stores version information of loaded project text kernels. Each entry associated with the keyword is a string that consists of four parts: the kernel name, version, entry date, and type. MIXS I-kernel Version: \begindata TEXT_KERNEL_ID += 'MPO_MIXS V0.0.1 28-FEB-2013 IK' \begintext Change Log History: Version 0.0.0 -- Feb 18, 2013 -- R. Moissl, ESAC/ESA Updated ID's, Names and cleaned up some parts Version 0.0.0-draft -- May 29, 2009 -- J. Vazquez/J. McAuliffe, ESAC/ESA Initial draft. References --------------------------------------------------------------------------- 1. "Kernel Pool Required Reading" 2. "C-kernel Required Reading" 3. "MIXS EID, Part B", BC-EST-RS-2517 Issue 1, July 11, 2012 4. BepiColombo Frames Definition Kernel (FK), latest version. Implementation Notes -------------------------------------------------------- Applications that need SPICE I-kernel data must ``load'' the I-kernel file, normally during program initialization. Loading the kernel using the SPICELIB routine FURNSH causes the data items and their associated values present in the kernel to become associated with a data structure called the ``kernel pool''. The application program may then obtain the value(s) for any IK data item using the SPICELIB routines GDPOOL, GIPOOL, GCPOOL. Routine GETFOV may be used if the file contains instrument field-of-view (FOV) specification. See [1] for details. This file was created with, and can be updated with a text editor or word processor. Conventions for Specifying Data -------------------------------------------------------- Data items are specified using ''keyword=value'' assignments [1]. All keywords referencing values in this I-kernel start with the characters `INS' followed by the NAIF BepiColombo instrument ID code, constructed using the spacecraft ID number (-69) followed by the NAIF three digit ID number for MIXS-C (350) or MIXS-T (355). These IDs are defined in [4] as follows: Instrument name ID -------------------- ------- MPO_MIXS_C -69350 MPO_MIXS_T -69355 The remainder of the keyword is an underscore character followed by the unique name of the data item. For example, the focal length of the MIXS-T is specified by INS-69355_FOCAL_LENGTH The upper bound on the length of all keywords is 32 characters. If a keyword is included in more than one file, or if the same keyword appears more than once within a single file, the last assignment supersedes any earlier assignments. Overview -------------------------------------------------------- [TBW] Mounting Alignment -------------------------------------------------------- [TBW] Apparent FOV Layout -------------------------------------------------------- WARNING -- the description/diagram is this section have not been verified This section provides a diagram illustrating the MIXS-T and MIXS-C apparent FOV layout in the corresponding reference frames. ^ +Xmixs-t | +Xmixs-c Pixel | --- (1,1)-------|---------+ ^ | | | | 1 deg | | | 64 lines | (mixs-t) | | | (MIXS-T) | | | | 1 line | | x-------------> +Ymixs-t (MIXS-C) | | +Zmixs-t | +Ymixs-c | | +Zmixs-c | | 10 deg | | V (mixs-c) | | --- +-------------------+ 64 pixels/line (MIXS-T) 1 pixel/line (MIXS-C) | 1 deg (mixs-t) | Boresight (+Z axis) |<----------------->| is into the page | 10 deg (mixs-c) | Optical Parameters [TBC] -------------------------------------------------------- [TBW] \begindata INS-69350_FOCAL_LENGTH = ( 550.0 ) INS-69350_F/RATIO = ( 0.145455 ) INS-69350_FOV_ANGULAR_SIZE = ( 0.17453293, 0.17453293 ) INS-69350_IFOV = ( 0.17453293 ) INS-69355_FOCAL_LENGTH = ( 1000.0 ) INS-69355_F/RATIO = ( 4.76190 ) INS-69355_FOV_ANGULAR_SIZE = ( 0.017453293, 0.017453293 ) INS-69355_IFOV = ( 0.000272708 ) \begintext Detector Parameters -------------------------------------------------------- [TBW] \begindata INS-69350_PIXEL_SIZE = ( 300, 300 ) INS-69350_PIXEL_SAMPLES = ( 1 ) INS-69350_PIXEL_LINES = ( 1 ) INS-69350_CCD_CENTER = ( 0.5, 0.5 ) INS-69355_PIXEL_SIZE = ( 300, 300 ) INS-69355_PIXEL_SAMPLES = ( 64 ) INS-69355_PIXEL_LINES = ( 64 ) INS-69355_CCD_CENTER = ( 31.5, 31.5 ) \begintext FOV Definitions --------------------------------------------------------------------------- This section contains definitions for the MIXS-C and MIXS-T FOVs. These definitions are provided in the format required by the SPICE (CSPICE) function GETFOV (getfov_c). MIXS-C FOV ---------- The set of assignments in the data section below defines the MIXS-C FOV with respect to the MPO_MIXS_C frame to be a rectangle with the corners defined by the first and last pixels of the first and last lines of the CCD and the boresight along the +Z axis of the instrument frame. This FOV definition uses angular extent style specification with the cross and along track angular sizes taken from the ``Optics Parameters'' section above. \begindata INS-69350_FOV_FRAME = 'MPO_MIXS_C' INS-69350_FOV_SHAPE = 'RECTANGLE' INS-69350_BORESIGHT = ( 0.0 0.0 1.0 ) INS-69350_FOV_CLASS_SPEC = 'ANGLES' INS-69350_FOV_REF_VECTOR = ( 1.0 0.0 0.0 ) INS-69350_FOV_REF_ANGLE = ( 5.0 ) INS-69350_FOV_CROSS_ANGLE = ( 5.0 ) INS-69350_FOV_ANGLE_UNITS = 'DEGREES' \begintext MIXS-T FOV ---------- The set of assignments in the data section below defines the MIXS-T FOV with respect to the MPO_MIXS_T frame to be a rectangle with the corners defined by the first and last pixels of the first and last lines of the CCD and the boresight along the +Z axis of the MPO_MIXS_T frame. This FOV definition uses angular extent style specification with the cross and along track angular sizes taken from the ``Optics Parameters'' section above. \begindata INS-69355_FOV_FRAME = 'MPO_MIXS_T' INS-69355_FOV_SHAPE = 'RECTANGLE' INS-69355_BORESIGHT = ( 0.0 0.0 1000.0 ) INS-69355_FOV_CLASS_SPEC = 'ANGLES' INS-69355_FOV_REF_VECTOR = ( 1.0 0.0 0.0 ) INS-69355_FOV_REF_ANGLE = ( 0.5 ) INS-69355_FOV_CROSS_ANGLE = ( 0.5 ) INS-69355_FOV_ANGLE_UNITS = 'DEGREES' \begintext Optical Distortion -------------------------------------------------------- This section provides optical distortion and geometric calibration data for MIXS-C and MIXS-T. MIX-C [TBW]. MIX-T [TBW]. Platform ID --------------------------------------------------------------------------- This number is the NAIF instrument ID of the platform on which the instrument(s) are mounted. For both channels this platform is the spacecraft. \begindata INS-69351_PLATFORM_ID = ( -69000 ) INS-69352_PLATFORM_ID = ( -69000 ) \begintext