KPL/IK Hayabusa2 Mascot Radiometer Instrument Kernel ============================================= Version and Date ---------------------------------------------------------------------- Version 2.0 -- Tue Jul 30 2024 -- Shin-ya Murakami (JAXA) Added Naming Conventions section. Version 1.0 -- Tue Apr 29 2019 -- Klaus-Dieter Matz (DLR) Initial Release. Contact Information ---------------------------------------------------------------------- If you have any questions regarding this file contact Thomas Roatsch (DLR) (+49) 30 67055 339 References ---------------------------------------------------------------------- 1. ``Frames Required Reading'' 2. Hayabusa2 Mascot Lander Frames Kernel, Latest Version 3. ``CAD drawings of the nominal position of MARA and Cam'', Email from M. Grott, August 10, 2016 4. ``The MASCOT Radiometer MARA for the Hayabusa 2 Mission'', Grott, M., Knollenberg, J., Borgs, B. et al. Space Sci Rev (2017) 208: 413 Naming Conventions ---------------------------------------------------------- All names referencing values in this IK file start with the characters `INS' followed by the NAIF Hayabusa2 ID number (-37) followed by a NAIF three digit ID code for one of the structures. This is the full list of names and IDs for the structures described by this IK file: HAYABUSA2_MASCOT -37700 HAYABUSA2_MASCOT_MARA -37740 HAYABUSA2_MASCOT_MARA_SILP -37741 HAYABUSA2_MASCOT_MARA_LP8 -37742 HAYABUSA2_MASCOT_MARA_BP5 -37743 HAYABUSA2_MASCOT_MARA_BP8 -37744 HAYABUSA2_MASCOT_MARA_BP9 -37745 HAYABUSA2_MASCOT_MARA_BP13 -37746 The remainder of the keyword name is an underscore character followed by the unique name of the data item. For example, the MASCOT MARA SILP boresight direction in the HAYABUSA2_MASCOT_MARA frame is specified by: INS-37741_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. Overview ------------------------------------------------------------------------------ From [4]: The MASCOT radiometer MARA is a multi-spectral instrument which measures net radiative flux in six wavelength bands. MARA uses thermopile sensors as sensing elements, and the net flux between the instrument and the surface in the circular 18 degrees field of view is determined by evaluating the thermoelectric potential between the sensors' absorbing surface and the thermopile's cold-junction. MARA houses 4 bandpass channels in the spectral range of 5.5-7, 8-9.5, 9.5-11.5, and 13.5-15.5 micrometer, as well as one long-pass channel, which is sensitive in the > 3 micrometer range. In addition, one channel is similar to that used by the Hayabusa 2 orbiter thermal mapper, which uses a wavelength range of 8-12 micrometer. Optical Parameters and FOV Definitions ------------------------------------------------------------------------------ Parameters extracted from [3] and [4]. All MARA sensors have a circular field-of-view with a FWHM-Diameter of 18 degrees (0.314159 rad). MARA_SILP \begindata INS-37741_FOV_FRAME = 'HAYABUSA2_MASCOT_MARA' INS-37741_FOV_SHAPE = 'CIRCLE' INS-37741_IFOV = 0.314159 INS-37741_BORESIGHT = ( 0.0, 0.0, 1.0 ) INS-37741_FOV_CLASS_SPEC = 'ANGLES' INS-37741_FOV_REF_VECTOR = ( 0.0, 1.0, 0.0 ) INS-37741_FOV_REF_ANGLE = ( 9.0 ) INS-37741_FOV_ANGLE_UNITS = ( 'DEGREES' ) INS-37741_FOV_CENTER_PIXEL = ( 0, 0 ) INS-37741_PIXEL_SAMPLES = ( 1 ) INS-37741_PIXEL_LINES = ( 1 ) \begintext MARA_LP8 \begindata INS-37742_FOV_FRAME = 'HAYABUSA2_MASCOT_MARA' INS-37742_FOV_SHAPE = 'CIRCLE' INS-37742_IFOV = 0.314159 INS-37742_BORESIGHT = ( 0.0, 0.0, 1.0 ) INS-37742_FOV_CLASS_SPEC = 'ANGLES' INS-37742_FOV_REF_VECTOR = ( 0.0, 1.0, 0.0 ) INS-37742_FOV_REF_ANGLE = ( 9.0 ) INS-37742_FOV_ANGLE_UNITS = ( 'DEGREES' ) INS-37742_FOV_CENTER_PIXEL = ( 0, 0 ) INS-37742_PIXEL_SAMPLES = ( 1 ) INS-37742_PIXEL_LINES = ( 1 ) \begintext MARA_BP5 \begindata INS-37743_FOV_FRAME = 'HAYABUSA2_MASCOT_MARA' INS-37743_FOV_SHAPE = 'CIRCLE' INS-37743_IFOV = 0.314159 INS-37743_BORESIGHT = ( 0.0, 0.0, 1.0 ) INS-37743_FOV_CLASS_SPEC = 'ANGLES' INS-37743_FOV_REF_VECTOR = ( 0.0, 1.0, 0.0 ) INS-37743_FOV_REF_ANGLE = ( 9.0 ) INS-37743_FOV_ANGLE_UNITS = ( 'DEGREES' ) INS-37743_FOV_CENTER_PIXEL = ( 0, 0 ) INS-37743_PIXEL_SAMPLES = ( 1 ) INS-37743_PIXEL_LINES = ( 1 ) \begintext MARA_BP8 \begindata INS-37744_FOV_FRAME = 'HAYABUSA2_MASCOT_MARA' INS-37744_FOV_SHAPE = 'CIRCLE' INS-37744_IFOV = 0.314159 INS-37744_BORESIGHT = ( 0.0, 0.0, 1.0 ) INS-37744_FOV_CLASS_SPEC = 'ANGLES' INS-37744_FOV_REF_VECTOR = ( 0.0, 1.0, 0.0 ) INS-37744_FOV_REF_ANGLE = ( 9.0 ) INS-37744_FOV_ANGLE_UNITS = ( 'DEGREES' ) INS-37744_FOV_CENTER_PIXEL = ( 0, 0 ) INS-37744_PIXEL_SAMPLES = ( 1 ) INS-37744_PIXEL_LINES = ( 1 ) \begintext MARA_BP9 \begindata INS-37745_FOV_FRAME = 'HAYABUSA2_MASCOT_MARA' INS-37745_FOV_SHAPE = 'CIRCLE' INS-37745_IFOV = 0.314159 INS-37745_BORESIGHT = ( 0.0, 0.0, 1.0 ) INS-37745_FOV_CLASS_SPEC = 'ANGLES' INS-37745_FOV_REF_VECTOR = ( 0.0, 1.0, 0.0 ) INS-37745_FOV_REF_ANGLE = ( 9.0 ) INS-37745_FOV_ANGLE_UNITS = ( 'DEGREES' ) INS-37745_FOV_CENTER_PIXEL = ( 0, 0 ) INS-37745_PIXEL_SAMPLES = ( 1 ) INS-37745_PIXEL_LINES = ( 1 ) \begintext MARA_BP13 \begindata INS-37746_FOV_FRAME = 'HAYABUSA2_MASCOT_MARA' INS-37746_FOV_SHAPE = 'CIRCLE' INS-37746_IFOV = 0.314159 INS-37746_BORESIGHT = ( 0.0, 0.0, 1.0 ) INS-37746_FOV_CLASS_SPEC = 'ANGLES' INS-37746_FOV_REF_VECTOR = ( 0.0, 1.0, 0.0 ) INS-37746_FOV_REF_ANGLE = ( 9.0 ) INS-37746_FOV_ANGLE_UNITS = ( 'DEGREES' ) INS-37746_FOV_CENTER_PIXEL = ( 0, 0 ) INS-37746_PIXEL_SAMPLES = ( 1 ) INS-37746_PIXEL_LINES = ( 1 ) \begintext End of IK file.