******************************************************************************* JPL/HORIZONS ATLAS (C/2024 G3) 2025-Mar-20 02:18:44 Rec #:90004834 (+COV) Soln.date: 2025-Jan-02_20:12:35 # obs: 294 (267 days) IAU76/J2000 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs): EPOCH= 2460477.5 ! 2024-Jun-16.0000000 (TDB) RMSW= n.a. EC= 1.000012925234078 QR= .09349036517414534 TP= 2460688.9235078674 OM= 220.3314998961675 W= 108.1251972214506 IN= 116.8514809421045 A= -7233.166116027929 MA= -.000338738600857943ADIST= 9.999999E99 PER= 9.999999E99 N= 1.602E-6 ANGMOM= .00743843 DAN= .27142 DDN= .14261 L= 94.40022569999999 B= 57.9850146 MOID= .48256299 TP= 2025-Jan-13.4235078674 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= n.a. M1= 7.6 M2= 12.4 k1= 12.5 k2= 5. PHCOF= .030 COMET comments 1: soln ref.= JPL#28, data arc: 2024-04-05 to 2024-12-28 2: k1=12.5, k2=5., phase coef.=0.03; ******************************************************************************* ******************************************************************************* Ephemeris / WWW_USER Thu Mar 20 02:18:44 2025 Pasadena, USA / Horizons ******************************************************************************* Target body name: ATLAS (C/2024 G3) {source: JPL#28} Center body name: Solar System Barycenter (0) {source: DE441} Center-site name: BODY CENTER ******************************************************************************* Start time : A.D. 1800-Jan-01 00:00:00.0000 TDB Stop time : A.D. 2200-Jan-01 00:00:00.0000 TDB Step-size : 400 calendar years ******************************************************************************* Center geodetic : 0.0, 0.0, 0.0 {E-lon(deg),Lat(deg),Alt(km)} Center cylindric: 0.0, 0.0, 0.0 {E-lon(deg),Dxy(km),Dz(km)} Center radii : (undefined) Keplerian GM : 2.9630927493968080E-04 au^3/d^2 Small perturbers: Yes {source: SB441-N16} Output units : AU-D, deg, Julian Day Number (Tp) Calendar mode : Mixed Julian/Gregorian Output type : GEOMETRIC osculating elements Output format : 10 Reference frame : Ecliptic of J2000.0 ******************************************************************************* Initial IAU76/J2000 heliocentric ecliptic osculating elements (au, days, deg.): EPOCH= 2460477.5 ! 2024-Jun-16.0000000 (TDB) RMSW= n.a. EC= 1.000012925234078 QR= .09349036517414534 TP= 2460688.9235078674 OM= 220.3314998961675 W= 108.1251972214506 IN= 116.8514809421045 Equivalent ICRF heliocentric cartesian coordinates (au, au/d): X=-8.143834430587191E-01 Y=-1.215559094222772E+00 Z=-3.521592443128855E+00 VX= 1.090858395108290E-03 VY= 2.942324030392180E-03 VZ= 1.205767560497205E-02 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= n.a. M1= 7.6 M2= 12.4 k1= 12.5 k2= 5. PHCOF= .030 ******************************************************************************* JDTDB EC QR IN OM W Tp N MA TA A AD PR ******************************************************************************* $$SOE 2378496.500000000 = A.D. 1800-Jan-01 00:00:00.0000 TDB EC= 9.999704428404445E-01 QR= 9.445505951563210E-02 IN= 1.167429262121128E+02 OM= 2.204625285367815E+02 W = 1.081853542121325E+02 Tp= 2460688.790549952071 N = 5.459482274762653E-06 MA= 3.595512726466204E+02 TA= 1.824103656091370E+02 A = 3.195674446911307E+03 AD= 6.391254438763099E+03 PR= 6.594031849213225E+07 2524593.500000000 = A.D. 2200-Jan-01 00:00:00.0000 TDB EC= 9.999871095827106E-01 QR= 9.173930865399686E-02 IN= 1.168552255665957E+02 OM= 2.204795895460558E+02 W = 1.080870457202087E+02 Tp= 2460689.428107064683 N = 1.642716145922529E-06 MA= 1.049762506886996E-01 TA= 1.773952923764511E+02 A = 7.116861044181466E+03 AD= 1.423363034905428E+04 PR= 2.191492430956953E+08 $$EOE ******************************************************************************* TIME Barycentric Dynamical Time ("TDB" or T_eph) output was requested. This continuous coordinate time is equivalent to the relativistic proper time of a clock at rest in a reference frame co-moving with the solar system barycenter but outside the system's gravity well. It is the independent variable in the solar system relativistic equations of motion. TDB runs at a uniform rate of one SI second per second and is independent of irregularities in Earth's rotation. 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. REFERENCE FRAME AND COORDINATES Ecliptic at the standard reference epoch Reference epoch: J2000.0 X-Y plane: adopted Earth orbital plane at the reference epoch Note: IAU76 obliquity of 84381.448 arcseconds wrt ICRF X-Y plane X-axis : ICRF Z-axis : perpendicular to the X-Y plane in the directional (+ or -) sense of Earth's north pole at the reference epoch. Symbol meaning [1 au= 149597870.700 km, 1 day= 86400.0 s]: JDTDB Julian Day Number, Barycentric Dynamical Time EC Eccentricity, e QR Periapsis distance, q (au) IN Inclination w.r.t X-Y plane, i (degrees) OM Longitude of Ascending Node, OMEGA, (degrees) W Argument of Perifocus, w (degrees) Tp Time of periapsis (Julian Day Number) N Mean motion, n (degrees/day) MA Mean anomaly, M (degrees) TA True anomaly, nu (degrees) A Semi-major axis, a (au) AD Apoapsis distance (au) PR Sidereal orbit period (day) ABERRATIONS AND CORRECTIONS Geometric osculating elements have NO corrections or aberrations applied. 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/horizons_batch.txt scripts https://ssd.jpl.nasa.gov/ftp/ssd/SCRIPTS Author : Jon.D.Giorgini@jpl.nasa.gov ******************************************************************************* !$$SOF COMMAND = '2024 G3' TABLE_TYPE = 'ELEMENTS' START_TIME = '1800-01-01' STOP_TIME = '2200-01-01' STEP_SIZE = '400 years' CENTER = '@0' OUT_UNITS = 'AU-D'