KPL/FK FILE: clipper_stations_v01.tf This file was created by PINPOINT. PINPOINT Version 3.2.0 --- September 6, 2016 PINPOINT RUN DATE/TIME: 2019-08-20T10:07:20 PINPOINT DEFINITIONS FILE: clipper_stations_v01.pinpoint PINPOINT PCK FILE: earth_wgs84.tpc PINPOINT SPK FILE: clipper_stations_v01.bsp The input definitions file is appended to this file as a comment block. Body-name mapping follows: \begindata NAIF_BODY_NAME += 'OVRO-LWA' NAIF_BODY_CODE += -159931 NAIF_BODY_NAME += 'JICARMARCA' NAIF_BODY_CODE += -159932 \begintext Reference frame specifications follow: Topocentric frame OVRO-LWA_TOPO The Z axis of this frame points toward the zenith. The X axis of this frame points North. Topocentric frame OVRO-LWA_TOPO is centered at the site OVRO-LWA, which has Cartesian coordinates X (km): -0.2409253600000E+04 Y (km): -0.4477900300000E+04 Z (km): 0.3839317100000E+04 and planetodetic coordinates Longitude (deg): -118.2816728383474 Latitude (deg): 37.2396322578526 Altitude (km): 0.1186928483984E+01 These planetodetic coordinates are expressed relative to a reference spheroid having the dimensions Equatorial radius (km): 6.3781370000000E+03 Polar radius (km): 6.3567523140000E+03 All of the above coordinates are relative to the frame ITRF93. \begindata FRAME_OVRO-LWA_TOPO = 840069 FRAME_840069_NAME = 'OVRO-LWA_TOPO' FRAME_840069_CLASS = 4 FRAME_840069_CLASS_ID = 840069 FRAME_840069_CENTER = -159931 OBJECT_-159931_FRAME = 'OVRO-LWA_TOPO' TKFRAME_840069_RELATIVE = 'ITRF93' TKFRAME_840069_SPEC = 'ANGLES' TKFRAME_840069_UNITS = 'DEGREES' TKFRAME_840069_AXES = ( 3, 2, 3 ) TKFRAME_840069_ANGLES = ( -241.7183271616526, -52.7603677421474, 180.0000000000000 ) \begintext Topocentric frame JICARMARCA_TOPO The Z axis of this frame points toward the zenith. The X axis of this frame points North. Topocentric frame JICARMARCA_TOPO is centered at the site JICARMARCA, which has Cartesian coordinates X (km): 0.1417303700000E+04 Y (km): -0.6078230400000E+04 Z (km): -0.1312258000000E+04 and planetodetic coordinates Longitude (deg): -76.8744712157429 Latitude (deg): -11.9514655016581 Altitude (km): 0.5196168604582E+00 These planetodetic coordinates are expressed relative to a reference spheroid having the dimensions Equatorial radius (km): 6.3781370000000E+03 Polar radius (km): 6.3567523140000E+03 All of the above coordinates are relative to the frame ITRF93. \begindata FRAME_JICARMARCA_TOPO = 840068 FRAME_840068_NAME = 'JICARMARCA_TOPO' FRAME_840068_CLASS = 4 FRAME_840068_CLASS_ID = 840068 FRAME_840068_CENTER = -159932 OBJECT_-159932_FRAME = 'JICARMARCA_TOPO' TKFRAME_840068_RELATIVE = 'ITRF93' TKFRAME_840068_SPEC = 'ANGLES' TKFRAME_840068_UNITS = 'DEGREES' TKFRAME_840068_AXES = ( 3, 2, 3 ) TKFRAME_840068_ANGLES = ( -283.1255287842571, -101.9514655016581, 180.0000000000000 ) \begintext Definitions file clipper_stations_v01.pinpoint -------------------------------------------------------------------------------- SPK/FK for Ground Stations/Observatories of Interest to Europa Clipper ===================================================================== Original SPK file name: clipper_stations_v01.bsp Original FK file name: clipper_stations_v01.tf Creation date: 20-AUG-2019 Created by: Boris Semenov (NAIF/JPL) This SPK/FK contains locations/topocentric frame definitions for additional ground stations and observatories of interest to the Europa Clipper mission. It is intended to be used only for the Europa Clipper mission planning/design applications. Locations of the OVRO-LWA and Jicarmarca radio observatories from Europa Clipper JIRA Issue AP-754, retrieved on 08/20/19, are: OVRO-LWA: X: -2409.2536 Y: -4477.9003 Z: 3839.3171 Jicarmarca: X: 1417.3037 Y: -6078.2304 Z: -1312.2580 These coordinates were specified in AP-754 w.r.t. ITRF2008. In these SPK/FK they are used w.r.t. ITRF93, which was the only high-precision Earth orientation frame available in SPICE at the time when these SPK/FK were created. This introduces an error of a few centimeters/milliarseconds, most likely insignificant in applications for which this SPK/FK are intended. No velocity data were provided with the position information. The IDs for these stations/observatories and their frames are picked from the Europa Clipper NAIF ID range (-15993x). begindata SITES += 'OVRO-LWA' OVRO-LWA_FRAME = 'ITRF93' OVRO-LWA_CENTER = 399 OVRO-LWA_IDCODE = -159931 OVRO-LWA_BOUNDS = ( @1950-JAN-01/00:00, @2050-JAN-01/00:00 ) OVRO-LWA_XYZ = ( -2409.2536 -4477.9003 3839.3171 ) OVRO-LWA_UP = 'Z' OVRO-LWA_NORTH = 'X' SITES += 'JICARMARCA' JICARMARCA_FRAME = 'ITRF93' JICARMARCA_CENTER = 399 JICARMARCA_IDCODE = -159932 JICARMARCA_BOUNDS = ( @1950-JAN-01/00:00, @2050-JAN-01/00:00 ) JICARMARCA_XYZ = ( 1417.3037 -6078.2304 -1312.2580 ) JICARMARCA_UP = 'Z' JICARMARCA_NORTH = 'X' begintext Earth RADII for FK generation ===================================================================== Author: Boris Semenov (NAIF/JPL) File creation date: 20-AUG-2019 Reference Spheroid ------------------ The WGS84 reference spheroid radii used to generate rotations for the topocentric frames are provided below for the record. begindata BODY399_RADII = ( 6378.137, 6378.137, 6356.752314 ) begintext begintext [End of definitions file]