SPK/FK for Preliminary DSS-35, DSS-36 Station Locations ===================================================================== Original SPK file name: dss_35_36_prelim_itrf93_140604.bsp Original FK file name: dss_35_36_prelim_itrf93_140604.tf Creation date: 2014 June 4 17:37 Created by: Nat Bachman (NAIF/JPL) Data are based on an email from Dr. William Folkner, dated May 28, 2014. The position data from that email are shown below: > Cartesian coordinates (m) >35 DSS-35 -4461275.7042 2682570.7255 -3674154.8301 >36 DSS-36 -4461170.2358 2682816.0240 -3674085.9737 Note that site velocity data are not included. Topocentric frame orientations were derived using earth radii included below. \begindata SITES += 'DSS-35' DSS-35_FRAME = 'ITRF93' DSS-35_CENTER = 399 DSS-35_IDCODE = 399035 DSS-35_BOUNDS = ( @1950-JAN-01/00:00, @2050-JAN-01/00:00 ) DSS-35_XYZ = ( -4461.2757042 2682.5707255 -3674.1548301 ) DSS-35_UP = 'Z' DSS-35_NORTH = 'X' SITES += 'DSS-36' DSS-36_FRAME = 'ITRF93' DSS-36_CENTER = 399 DSS-36_IDCODE = 399036 DSS-36_BOUNDS = ( @1950-JAN-01/00:00, @2050-JAN-01/00:00 ) DSS-36_XYZ = ( -4461.1702358 2682.8160240 -3674.0859737 ) DSS-36_UP = 'Z' DSS-36_NORTH = 'X' \begintext Earth radii for DSN kernel generation ===================================== Author: Nat Bachman File creation date: 03-JUN-2014 Reference Spheroid ------------------ The reference bi-axial spheroid is defined by an equatorial and a polar radius. Calling these Re and Rp respectively, the flattening factor f is defined as f = ( Re - Rp ) / Re For the reference spheroid used by this file, the equatorial radius Re and inverse flattening factor 1/f are Re = 6378136.3 m 1/f = 298.257 Derived Rp = 6356.7516005629377 \begindata BODY399_RADII = ( 6378.1363, 6378.1363, 6356.7516005629377 ) \begintext