JUNO Structures SPK File =============================================================================== This SPK file contains locations of various JUNO structures and science and engineering instruments. Version and Date -------------------------------------------------------- Version 1.4 -- Tue Jan 17 17:11:16 PST 2017 -- Boris Semenov/NAIF Updated FGM_IB and _OB locations based on FGM MICD [5]. Updated CG location based the latest post JOI maneuver performance file [6]. Version 1.3 -- Wed Jan 4 13:35:49 PST 2017 -- Boris Semenov/NAIF Extended coverage for all objects to 2030. Version 1.2 -- Fri Oct 10 07:23:23 PDT 2014 -- Boris Semenov/NAIF Extended coverage for all objects to 2020. Version 1.1 -- Sat Jul 2 09:41:07 PDT 2011 -- Boris Semenov/NAIF Added estimated positions of HGA and SA1. Version 1.0 -- Mon Jul 13 16:51:42 PDT 2009 -- Boris Semenov/NAIF Initial Release. Due to lack of documentation all locations are estimated. Contact Information ---------------------------------------------------------------------- Boris Semenov, NAIF/JPL, Boris.Semenov@jpl.nasa.gov References ---------------------------------------------------------------------- 1. ``Frames Required Reading'' 2. ``SP-Kernel Required Reading'' 3. ``C-Kernel Required Reading'' 4. JUNO Frame Kernel, Latest Version 5. FGM MIDC, JUNA0800699, 2009-12-14 6. MPF juno_mpdf_btm03_prelim, 2016-12-09 Related SPICE Kernels ---------------------------------------------------------------------- Descriptions/definitions from the JUNO Frames Kernel (FK) file are required in order to understand objects and frames with respect to which the locations are defined in this SPK file. Coordinates ---------------------------------------------------------------------- This table lists ID codes, center ID codes, and reference frame names for JUNO structures, the locations of which are provided in this SPK file: STRUCTURE ID CENTER FRAME ------------------------- ------- ------- ------------------------- JUNO_SPACECRAFT (1) -61000 -61 JUNO (2) JUNO_FGM_IB -61114 -61000 JUNO_SPACECRAFT JUNO_FGM_OB -61124 -61000 JUNO_SPACECRAFT JUNO_SA1 -61011 -61000 JUNO_SPACECRAFT JUNO_HGA -61040 -61000 JUNO_SPACECRAFT (1) JUNO_SPACECRAFT designates the spacecraft frame origin (the center of the outer plane of the launch vehicle interface ring) (2) JUNO designates the spacecraft's center of gravity Diagrams ---------------------------------------------------------------------- This diagram illustrates the locations of the spacecraft's CG and IB and OB FGMs: Spacecraft -Y side view: ------------------------ o / HGA --- .--------@--------, HGA ^ \ / |3.5m(est) `. .' | `-------' Solar Array 1 Magnetometer | | | Boom | | | | --- =======o==o==o==o-----------o======o======@======o=====@====@* | ^ | | | SA1 FGM/IB FGM/OB | | 1.733 m | | s/c CG | | | --- | |@ | | | ^ | | | | |1.37 m| +Zsc ^ | | | | | | | | | | | | | V V V | | | --------- `----- +Ysc x------> -' /_____\ +Xsc || 0.01 m ->||<------------ || | 6 m (estimated) | |<----------------------->| | | | 9.929 m | |<------------------------------------>| | | | 11.929 m | |<----------------------------------------->| | | Data section of the file. ---------------------------------------------------------------------- \begindata SITES += ( 'JUNO_SPACECRAFT' ) JUNO_SPACECRAFT_IDCODE = -61000 JUNO_SPACECRAFT_CENTER = -61 JUNO_SPACECRAFT_FRAME = 'JUNO_SPACECRAFT' JUNO_SPACECRAFT_XYZ = ( -0.00001 0.0 -0.00137 ) JUNO_SPACECRAFT_BOUNDS = ( @2011-08-01, @2030-01-01 ) SITES += ( 'JUNO_FGM_IB' ) JUNO_FGM_IB_IDCODE = -61114 JUNO_FGM_IB_CENTER = -61000 JUNO_FGM_IB_FRAME = 'JUNO_SPACECRAFT' JUNO_FGM_IB_XYZ = ( 0.009929 0.000 0.001733 ) JUNO_FGM_IB_BOUNDS = ( @2011-08-01, @2030-01-01 ) SITES += ( 'JUNO_FGM_OB' ) JUNO_FGM_OB_IDCODE = -61124 JUNO_FGM_OB_CENTER = -61000 JUNO_FGM_OB_FRAME = 'JUNO_SPACECRAFT' JUNO_FGM_OB_XYZ = ( 0.011929 0.000 0.001733 ) JUNO_FGM_OB_BOUNDS = ( @2011-08-01, @2030-01-01 ) SITES += ( 'JUNO_SA1' ) JUNO_SA1_IDCODE = -61011 JUNO_SA1_CENTER = -61000 JUNO_SA1_FRAME = 'JUNO_SPACECRAFT' JUNO_SA1_XYZ = ( 0.006 0.000 0.001733 ) JUNO_SA1_BOUNDS = ( @2011-08-01, @2030-01-01 ) SITES += ( 'JUNO_HGA' ) JUNO_HGA_IDCODE = -61040 JUNO_HGA_CENTER = -61000 JUNO_HGA_FRAME = 'JUNO_SPACECRAFT' JUNO_HGA_XYZ = ( 0.0 0.0 0.0035 ) JUNO_HGA_BOUNDS = ( @2011-08-01, @2030-01-01 ) \begintext