API VERSION: 1.2 API SOURCE: NASA/JPL Horizons API ******************************************************************************* JPL/HORIZONS 38628 Huya (2000 EB173) 2024-Apr-28 10:55:08 Rec #: 38628 (+COV) Soln.date: 2024-Apr-17_11:43:51 # obs: 865 (1996-2023) IAU76/J2000 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs): EPOCH= 2457722.5 ! 2016-Nov-30.00 (TDB) Residual RMS= .065646 EC= .2817671087353859 QR= 28.53435924898228 TP= 2457034.8375345939 OM= 169.2321169515275 W= 67.72814734450766 IN= 15.46404488598865 A= 39.72856102251316 MA= 2.706606629301818 ADIST= 50.92276279604404 PER= 250.41622 N= .003935952 ANGMOM= .104032747 DAN= 33.04547 DDN= 40.94716 L= 236.2095469 B= 14.2847852 MOID= 27.55369949 TP= 2015-Jan-12.3375345939 Asteroid physical parameters (km, seconds, rotational period in hours): GM= n.a. RAD= n.a. ROTPER= 5.28 H= 4.82 G= .150 B-V= n.a. ALBEDO= n.a. STYP= n.a. ASTEROID comments: 1: soln ref.= JPL#45, OCC=1 2: source=ORB ******************************************************************************* ******************************************************************************* Ephemeris / API_USER Sun Apr 28 10:55:08 2024 Pasadena, USA / Horizons ******************************************************************************* Target body name: 38628 Huya (2000 EB173) {source: JPL#45} Center body name: Earth (399) {source: DE441} Center-site name: GEOCENTRIC ******************************************************************************* Start time : A.D. 2014-Dec-12 00:00:00.0000 UT Stop time : A.D. 2014-Dec-16 00:00:00.0000 UT Step-size : 180 minutes ******************************************************************************* Target pole/equ : undefined Target radii : undefined 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= 2457722.5 ! 2016-Nov-30.00 (TDB) Residual RMS= .065646 EC= .2817671087353859 QR= 28.53435924898228 TP= 2457034.8375345939 OM= 169.2321169515275 W= 67.72814734450766 IN= 15.46404488598865 Equivalent ICRF heliocentric cartesian coordinates (au, au/d): X=-1.322662665078185E+01 Y=-2.513601445456396E+01 Z=-2.971171366065875E+00 VX= 3.190890046392143E-03 VY=-1.710641238389447E-03 VZ=-4.083795575121540E-04 Asteroid physical parameters (km, seconds, rotational period in hours): GM= n.a. RAD= n.a. ROTPER= 5.28 H= 4.82 G= .150 B-V= n.a. ALBEDO= n.a. STYP= n.a. ******************************************************************************* Date__(UT)__HR:MN r rdot ************************************************** $$SOE 2014-Dec-12 00:00 28.53306132982 -0.0004864 2014-Dec-12 03:00 28.53306129550 -0.0004644 2014-Dec-12 06:00 28.53306126277 -0.0004425 2014-Dec-12 09:00 28.53306123161 -0.0004205 2014-Dec-12 12:00 28.53306120205 -0.0003986 2014-Dec-12 15:00 28.53306117407 -0.0003766 2014-Dec-12 18:00 28.53306114767 -0.0003546 2014-Dec-12 21:00 28.53306112286 -0.0003327 2014-Dec-13 00:00 28.53306109963 -0.0003107 2014-Dec-13 03:00 28.53306107799 -0.0002888 2014-Dec-13 06:00 28.53306105793 -0.0002668 2014-Dec-13 09:00 28.53306103946 -0.0002449 2014-Dec-13 12:00 28.53306102258 -0.0002229 2014-Dec-13 15:00 28.53306100728 -0.0002009 2014-Dec-13 18:00 28.53306099356 -0.0001790 2014-Dec-13 21:00 28.53306098143 -0.0001570 2014-Dec-14 00:00 28.53306097089 -0.0001351 2014-Dec-14 03:00 28.53306096193 -0.0001131 2014-Dec-14 06:00 28.53306095456 -0.0000911 2014-Dec-14 09:00 28.53306094877 -0.0000692 2014-Dec-14 12:00 28.53306094457 -0.0000472 2014-Dec-14 15:00 28.53306094195 -0.0000253 2014-Dec-14 18:00 28.53306094092 -0.0000033 2014-Dec-14 21:00 28.53306094148 0.0000187 2014-Dec-15 00:00 28.53306094362 0.0000406 2014-Dec-15 03:00 28.53306094735 0.0000626 2014-Dec-15 06:00 28.53306095266 0.0000846 2014-Dec-15 09:00 28.53306095956 0.0001065 2014-Dec-15 12:00 28.53306096804 0.0001285 2014-Dec-15 15:00 28.53306097812 0.0001505 2014-Dec-15 18:00 28.53306098977 0.0001724 2014-Dec-15 21:00 28.53306100302 0.0001944 2014-Dec-16 00:00 28.53306101784 0.0002164 $$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. 'r rdot' = The Sun's apparent range ("r", light-time aberrated) and range-rate ("rdot") relative to the target center, as seen by the observer. A positive "rdot" means the target center was moving away from the Sun, negative means moving toward the Sun. Units: AU and KM/S 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 *******************************************************************************