******************************************************************************* JPL/HORIZONS 16 Psyche (A852 FA) 2024-Apr-27 12:24:41 Rec #: 16 (+COV) Soln.date: 2022-Feb-03_10:45:03 # obs: 2693 (1984-2021) IAU76/J2000 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs): EPOCH= 2451879.5 ! 2000-Dec-01.00 (TDB) Residual RMS= .24563 EC= .1393384271405424 QR= 2.516226343776919 TP= 2451667.8644549712 OM= 150.40760051435 W= 228.9721614956426 IN= 3.092472666018101 A= 2.923595549197139 MA= 41.72696012121644 ADIST= 3.330964754617358 PER= 4.99901 N= .197164234 ANGMOM= .029126122 DAN= 3.15545 DDN= 2.62659 L= 19.3384101 B= -2.3324443 MOID= 1.51862001 TP= 2000-May-03.3644549712 Asteroid physical parameters (km, seconds, rotational period in hours): GM= 1.53 RAD= 111. ROTPER= 4.196 H= 6.21 G= .200 B-V= .729 ALBEDO= .1203 STYP= X ASTEROID comments: 1: soln ref.= JPL#91, OCC=0 2: source=ORB ******************************************************************************* ******************************************************************************* Ephemeris / WWW_USER Sat Apr 27 12:24:41 2024 Pasadena, USA / Horizons ******************************************************************************* Target body name: 16 Psyche (A852 FA) {source: JPL#91} Center body name: Earth (399) {source: DE441} Center-site name: GEOCENTRIC ******************************************************************************* Start time : A.D. 2024-Jul-29 00:00:00.0000 UT Stop time : A.D. 2024-Aug-12 00:00:00.0000 UT Step-size : 60 steps ******************************************************************************* Target pole/equ : undefined Target radii : 111. km Center geodetic : 0.0, 0.0, -6378.137 {E-lon(deg),Lat(deg),Alt(km)} Center cylindric: 0.0, 0.0, 0.0 {E-lon(deg),Dxy(km),Dz(km)} Center pole/equ : ITRF93 {East-longitude positive} Center radii : 6378.137, 6378.137, 6356.752 km {Equator_a, b, pole_c} Target primary : Sun Vis. interferer : MOON (R_eq= 1737.400) km {source: DE441} Rel. light bend : Sun {source: DE441} Rel. lght bnd GM: 1.3271E+11 km^3/s^2 Small-body perts: Yes {source: SB441-N16} Atmos refraction: NO (AIRLESS) RA format : HMS Time format : CAL Calendar mode : Mixed Julian/Gregorian EOP file : eop.240426.p240720 EOP coverage : DATA-BASED 1962-JAN-20 TO 2024-APR-26. PREDICTS-> 2024-JUL-19 Units conversion: 1 au= 149597870.700 km, c= 299792.458 km/s, 1 day= 86400.0 s Table cut-offs 1: Elevation (-90.0deg=NO ),Airmass (>38.000=NO), Daylight (NO ) Table cut-offs 2: Solar elongation ( 0.0,180.0=NO ),Local Hour Angle( 0.0=NO ) Table cut-offs 3: RA/DEC angular rate ( 0.0=NO ) ******************************************************************************* Initial IAU76/J2000 heliocentric ecliptic osculating elements (au, days, deg.): EPOCH= 2451879.5 ! 2000-Dec-01.00 (TDB) Residual RMS= .24563 EC= .1393384271405424 QR= 2.516226343776919 TP= 2451667.8644549712 OM= 150.40760051435 W= 228.9721614956426 IN= 3.092472666018101 Equivalent ICRF heliocentric cartesian coordinates (au, au/d): X= 7.629742051392228E-01 Y= 2.379367963962851E+00 Z= 8.796973218322852E-01 VX=-1.019581247683162E-02 VY= 3.889626132314117E-03 VZ= 1.764181101592729E-03 Asteroid physical parameters (km, seconds, rotational period in hours): GM= 1.53 RAD= 111. ROTPER= 4.196 H= 6.21 G= .200 B-V= .729 ALBEDO= .1203 STYP= X ******************************************************************************* Date__(UT)__HR:MN:SC.fff delta deldot S-O-T /r *********************************************************************** $$SOE 2024-Jul-29 00:00:00.000 1.72393323927047 -5.7412526 170.2949 /L 2024-Jul-29 05:36:00.000 1.72316674020285 -5.6343368 170.5618 /L 2024-Jul-29 11:12:00.000 1.72241466071396 -5.5272510 170.8287 /L 2024-Jul-29 16:48:00.000 1.72167702344143 -5.4199993 171.0955 /L 2024-Jul-29 22:24:00.000 1.72095385046921 -5.3125858 171.3623 /L 2024-Jul-30 04:00:00.000 1.72024516330988 -5.2050149 171.6290 /L 2024-Jul-30 09:36:00.000 1.71955098288791 -5.0972910 171.8956 /L 2024-Jul-30 15:12:00.000 1.71887132952409 -4.9894186 172.1621 /L 2024-Jul-30 20:48:00.000 1.71820622292078 -4.8814023 172.4284 /L 2024-Jul-31 02:24:00.000 1.71755568214833 -4.7732469 172.6945 /L 2024-Jul-31 08:00:00.000 1.71691972563239 -4.6649573 172.9603 /L 2024-Jul-31 13:36:00.000 1.71629837114224 -4.5565382 173.2259 /L 2024-Jul-31 19:12:00.000 1.71569163578003 -4.4479948 173.4911 /L 2024-Aug-01 00:48:00.000 1.71509953597108 -4.3393321 173.7560 /L 2024-Aug-01 06:24:00.000 1.71452208745500 -4.2305551 174.0204 /L 2024-Aug-01 12:00:00.000 1.71395930527782 -4.1216691 174.2842 /L 2024-Aug-01 17:36:00.000 1.71341120378507 -4.0126793 174.5474 /L 2024-Aug-01 23:12:00.000 1.71287779661575 -3.9035909 174.8098 /L 2024-Aug-02 04:48:00.000 1.71235909669716 -3.7944093 175.0713 /L 2024-Aug-02 10:24:00.000 1.71185511624076 -3.6851398 175.3318 /L 2024-Aug-02 16:00:00.000 1.71136586673877 -3.5757877 175.5910 /L 2024-Aug-02 21:36:00.000 1.71089135896177 -3.4663583 175.8486 /L 2024-Aug-03 03:12:00.000 1.71043160295702 -3.3568572 176.1044 /L 2024-Aug-03 08:48:00.000 1.70998660804771 -3.2472895 176.3578 /L 2024-Aug-03 14:24:00.000 1.70955638283295 -3.1376607 176.6085 /L 2024-Aug-03 20:00:00.000 1.70914093518853 -3.0279762 176.8557 /L 2024-Aug-04 01:36:00.000 1.70874027226842 -2.9182414 177.0984 /L 2024-Aug-04 07:12:00.000 1.70835440050694 -2.8084614 177.3355 /L 2024-Aug-04 12:48:00.000 1.70798332562159 -2.6986417 177.5652 /L 2024-Aug-04 18:24:00.000 1.70762705261646 -2.5887875 177.7853 /L 2024-Aug-05 00:00:00.000 1.70728558578619 -2.4789041 177.9926 /L 2024-Aug-05 05:36:00.000 1.70695892872042 -2.3689967 178.1826 /L 2024-Aug-05 11:12:00.000 1.70664708430872 -2.2590705 178.3494 /L 2024-Aug-05 16:48:00.000 1.70635005474579 -2.1491306 178.4851 /L 2024-Aug-05 22:24:00.000 1.70606784153715 -2.0391820 178.5810 /T 2024-Aug-06 04:00:00.000 1.70580044550493 -1.9292299 178.6285 /T 2024-Aug-06 09:36:00.000 1.70554786679401 -1.8192793 178.6226 /T 2024-Aug-06 15:12:00.000 1.70531010487827 -1.7093350 178.5640 /T 2024-Aug-06 20:48:00.000 1.70508715856694 -1.5994021 178.4586 /T 2024-Aug-07 02:24:00.000 1.70487902601100 -1.4894853 178.3153 /T 2024-Aug-07 08:00:00.000 1.70468570470969 -1.3795895 178.1427 /T 2024-Aug-07 13:36:00.000 1.70450719151688 -1.2697195 177.9482 /T 2024-Aug-07 19:12:00.000 1.70434348264746 -1.1598799 177.7375 /T 2024-Aug-08 00:48:00.000 1.70419457368363 -1.0500755 177.5147 /T 2024-Aug-08 06:24:00.000 1.70406045958101 -0.9403108 177.2828 /T 2024-Aug-08 12:00:00.000 1.70394113467472 -0.8305905 177.0438 /T 2024-Aug-08 17:36:00.000 1.70383659268518 -0.7209190 176.7995 /T 2024-Aug-08 23:12:00.000 1.70374682672388 -0.6113010 176.5509 /T 2024-Aug-09 04:48:00.000 1.70367182929884 -0.5017408 176.2989 /T 2024-Aug-09 10:24:00.000 1.70361159231998 -0.3922428 176.0441 /T 2024-Aug-09 16:00:00.000 1.70356610710432 -0.2828115 175.7872 /T 2024-Aug-09 21:36:00.000 1.70353536438101 -0.1734512 175.5283 /T 2024-Aug-10 03:12:00.000 1.70351935429620 -0.0641662 175.2680 /T 2024-Aug-10 08:48:00.000 1.70351806641784 0.0450393 175.0063 /T 2024-Aug-10 14:24:00.000 1.70353148974035 0.1541609 174.7435 /T 2024-Aug-10 20:00:00.000 1.70355961268930 0.2631946 174.4799 /T 2024-Aug-11 01:36:00.000 1.70360242312598 0.3721360 174.2154 /T 2024-Aug-11 07:12:00.000 1.70365990835209 0.4809812 173.9503 /T 2024-Aug-11 12:48:00.000 1.70373205511450 0.5897259 173.6845 /T 2024-Aug-11 18:24:00.000 1.70381884961008 0.6983662 173.4183 /T 2024-Aug-12 00:00:00.000 1.70392027749082 0.8068979 173.1516 /T $$EOE ******************************************************************************* Column meaning: TIME Times PRIOR to 1962 are UT1, a mean-solar time closely related to the prior but now-deprecated GMT. Times AFTER 1962 are in UTC, the current civil or "wall-clock" time-scale. UTC is kept within 0.9 seconds of UT1 using integer leap-seconds for 1972 and later years. Conversion from the internal Barycentric Dynamical Time (TDB) of solar system dynamics to the non-uniform civil UT time-scale requested for output has not been determined for UTC times after the next July or January 1st. Therefore, the last known leap-second is used as a constant over future intervals. Time tags refer to the UT time-scale conversion from TDB on Earth regardless of observer location within the solar system, although clock rates may differ due to the local gravity field and no analog to "UT" may be defined for that location. Any 'b' symbol in the 1st-column denotes a B.C. date. First-column blank (" ") denotes an A.D. date. CALENDAR SYSTEM Mixed calendar mode was active such that calendar dates after AD 1582-Oct-15 (if any) are in the modern Gregorian system. Dates prior to 1582-Oct-5 (if any) are in the Julian calendar system, which is automatically extended for dates prior to its adoption on 45-Jan-1 BC. The Julian calendar is useful for matching historical dates. The Gregorian calendar more accurately corresponds to the Earth's orbital motion and seasons. A "Gregorian-only" calendar mode is available if such physical events are the primary interest. NOTE: "n.a." in output means quantity "not available" at the print-time. 'delta deldot' = Apparent range ("delta", light-time aberrated) and range-rate ("delta-dot") of the target center relative to the observer. A positive "deldot" means the target center is moving away from the observer, negative indicates movement toward the observer. Units: AU and KM/S 'S-O-T /r' = Sun-Observer-Target apparent SOLAR ELONGATION ANGLE seen from the observers' location at print-time. The '/r' column provides a code indicating the targets' apparent position relative to the Sun in the observers' sky, as described below: Case A: For an observing location on the surface of a rotating body, that body rotational sense is considered: /T indicates target TRAILS Sun (evening sky: rises and sets AFTER Sun) /L indicates target LEADS Sun (morning sky: rises and sets BEFORE Sun) Case B: For an observing point that does not have a rotational model (such as a spacecraft), the "leading" and "trailing" condition is defined by the observers' heliocentric ORBITAL motion: * If continuing in the observers' current direction of heliocentric motion would encounter the targets' apparent longitude first, followed by the Sun's, the target LEADS the Sun as seen by the observer. * If the Sun's apparent longitude would be encountered first, followed by the targets', the target TRAILS the Sun. Two other codes can be output: /* indicates observer is Sun-centered (undefined) /? Target is aligned with Sun center (no lead or trail) The S-O-T solar elongation angle is numerically the minimum separation angle of the Sun and target in the sky in any direction. It does NOT indicate the amount of separation in the leading or trailing directions, which would be defined along the equator of a spherical coordinate system. Units: DEGREES Computations by ... Solar System Dynamics Group, Horizons On-Line Ephemeris System 4800 Oak Grove Drive, Jet Propulsion Laboratory Pasadena, CA 91109 USA General site: https://ssd.jpl.nasa.gov/ Mailing list: https://ssd.jpl.nasa.gov/email_list.html System news : https://ssd.jpl.nasa.gov/horizons/news.html User Guide : https://ssd.jpl.nasa.gov/horizons/manual.html Connect : browser https://ssd.jpl.nasa.gov/horizons/app.html#/x API https://ssd-api.jpl.nasa.gov/doc/horizons.html command-line telnet ssd.jpl.nasa.gov 6775 e-mail/batch https://ssd.jpl.nasa.gov/ftp/ssd/hrzn_batch.txt scripts https://ssd.jpl.nasa.gov/ftp/ssd/SCRIPTS Author : Jon.D.Giorgini@jpl.nasa.gov ******************************************************************************* !$$SOF COMMAND = '16' START_TIME = '2024-Jul-29' STOP_TIME = '2024-Aug-12' STEP_SIZE = '60' QUANTITIES = '20,23'