API VERSION: 1.2 API SOURCE: NASA/JPL Horizons API ******************************************************************************* JPL/HORIZONS 136199 Eris (2003 UB313) 2024-Apr-27 02:09:41 Rec #: 136199 (+COV) Soln.date: 2024-Apr-17_03:38:14 # obs: 3128 (1954-2024) IAU76/J2000 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs): EPOCH= 2457963.5 ! 2017-Jul-29.00 (TDB) Residual RMS= .17674 EC= .441800917285697 QR= 37.76089639149636 TP= 2545558.1555774985 OM= 35.87789652982578 W= 151.5132571975698 IN= 44.20393321716322 A= 67.64772204189218 MA= 204.8320873386429 ADIST= 97.534547692288 PER= 556.40108 N= .001771431 ANGMOM= .126927357 DAN= 89.00551 DDN= 39.21578 L= 194.621365 B= 19.4230241 MOID= 36.8158989 TP= 2257-May-26.6555774985 Asteroid physical parameters (km, seconds, rotational period in hours): GM= n.a. RAD= n.a. ROTPER= 25.9 H= -1.23 G= .150 B-V= n.a. ALBEDO= n.a. STYP= n.a. ASTEROID comments: 1: soln ref.= JPL#89, OCC=3 2: source=ORB ******************************************************************************* ******************************************************************************* Ephemeris / API_USER Sat Apr 27 02:09:41 2024 Pasadena, USA / Horizons ******************************************************************************* Target body name: 136199 Eris (2003 UB313) {source: JPL#89} Center body name: Earth (399) {source: DE441} Center-site name: GEOCENTRIC ******************************************************************************* Start time : A.D. 2257-Nov-29 00:00:00.0000 UT Stop time : A.D. 2257-Dec-04 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= 2457963.5 ! 2017-Jul-29.00 (TDB) Residual RMS= .17674 EC= .441800917285697 QR= 37.76089639149636 TP= 2545558.1555774985 OM= 35.87789652982578 W= 151.5132571975698 IN= 44.20393321716322 Equivalent ICRF heliocentric cartesian coordinates (au, au/d): X= 8.652167894733418E+01 Y= 4.181531507116976E+01 Z=-4.056464779216746E+00 VX=-3.775818497766279E-04 VY= 4.527174025787553E-04 VZ= 1.196386193610629E-03 Asteroid physical parameters (km, seconds, rotational period in hours): GM= n.a. RAD= n.a. ROTPER= 25.9 H= -1.23 G= .150 B-V= n.a. ALBEDO= n.a. STYP= n.a. ******************************************************************************* Date__(UT)__HR:MN r rdot ************************************************** $$SOE 2257-Nov-29 00:00 38.09330046936 -0.0016089 2257-Nov-29 03:00 38.09330035391 -0.0015891 2257-Nov-29 06:00 38.09330023989 -0.0015694 2257-Nov-29 09:00 38.09330012729 -0.0015497 2257-Nov-29 12:00 38.09330001612 -0.0015299 2257-Nov-29 15:00 38.09329990638 -0.0015102 2257-Nov-29 18:00 38.09329979806 -0.0014905 2257-Nov-29 21:00 38.09329969116 -0.0014707 2257-Nov-30 00:00 38.09329958569 -0.0014510 2257-Nov-30 03:00 38.09329948164 -0.0014312 2257-Nov-30 06:00 38.09329937902 -0.0014115 2257-Nov-30 09:00 38.09329927783 -0.0013918 2257-Nov-30 12:00 38.09329917806 -0.0013720 2257-Nov-30 15:00 38.09329907971 -0.0013523 2257-Nov-30 18:00 38.09329898279 -0.0013325 2257-Nov-30 21:00 38.09329888730 -0.0013128 2257-Dec-01 00:00 38.09329879323 -0.0012930 2257-Dec-01 03:00 38.09329870059 -0.0012733 2257-Dec-01 06:00 38.09329860937 -0.0012535 2257-Dec-01 09:00 38.09329851958 -0.0012338 2257-Dec-01 12:00 38.09329843122 -0.0012140 2257-Dec-01 15:00 38.09329834428 -0.0011943 2257-Dec-01 18:00 38.09329825877 -0.0011745 2257-Dec-01 21:00 38.09329817469 -0.0011547 2257-Dec-02 00:00 38.09329809203 -0.0011350 2257-Dec-02 03:00 38.09329801080 -0.0011152 2257-Dec-02 06:00 38.09329793099 -0.0010955 2257-Dec-02 09:00 38.09329785262 -0.0010757 2257-Dec-02 12:00 38.09329777566 -0.0010559 2257-Dec-02 15:00 38.09329770014 -0.0010362 2257-Dec-02 18:00 38.09329762604 -0.0010164 2257-Dec-02 21:00 38.09329755337 -0.0009966 2257-Dec-03 00:00 38.09329748213 -0.0009769 2257-Dec-03 03:00 38.09329741232 -0.0009571 2257-Dec-03 06:00 38.09329734393 -0.0009373 2257-Dec-03 09:00 38.09329727697 -0.0009176 2257-Dec-03 12:00 38.09329721143 -0.0008978 2257-Dec-03 15:00 38.09329714733 -0.0008780 2257-Dec-03 18:00 38.09329708465 -0.0008582 2257-Dec-03 21:00 38.09329702340 -0.0008385 2257-Dec-04 00:00 38.09329696358 -0.0008187 $$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 *******************************************************************************