******************************************************************************* JPL/HORIZONS ATLAS (C/2024 G3) 2025-Dec-12 18:00:47 Rec #:90004848 (+COV) Soln.date: 2025-Apr-11_14:44:56 # obs: 299 (2024-2025) IAU76/J2000 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs): EPOCH= 2460480.5 ! 2024-Jun-19.0000000 (TDB) RMSW= n.a. EC= 1.000012291218472 QR= .09349257647677604 TP= 2460688.9243240277 OM= 220.3320911080488 W= 108.1253732077035 IN= 116.8510954925091 A= -7606.45306976526 MA= -.000309655779623573ADIST= 9.999999E99 PER= 9.999999E99 N= 1.486E-6 ANGMOM= .007438517 DAN= .27143 DDN= .14262 L= 94.40017229999999 B= 57.9852346 MOID= .482454 TP= 2025-Jan-13.4243240277 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#29, data arc: 2024-04-05 to 2025-01-01 2: k1=12.5, k2=5., phase coef.=0.03; ******************************************************************************* ******************************************************************************* Ephemeris / WWW_USER Fri Dec 12 18:00:47 2025 Pasadena, USA / Horizons ******************************************************************************* Target body name: ATLAS (C/2024 G3) {source: JPL#29} 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= 2460480.5 ! 2024-Jun-19.0000000 (TDB) RMSW= n.a. EC= 1.000012291218472 QR= .09349257647677604 TP= 2460688.9243240277 OM= 220.3320911080488 W= 108.1253732077035 IN= 116.8510954925091 Equivalent ICRF heliocentric cartesian coordinates (au, au/d): X=-8.110914847299020E-01 Y=-1.206702602943228E+00 Z=-3.485331923178904E+00 VX= 1.104039324886021E-03 VY= 2.961942770481332E-03 VZ= 1.211451916091908E-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 ******************************************************************************* $$SOE 2378496.500000000 = A.D. 1800-Jan-01 00:00:00.0000 TDB EC= 9.999698727892450E-01 QR= 9.445554096863862E-02 IN= 1.167427151177581E+02 OM= 2.204628500384102E+02 W = 1.081855632955685E+02 Tp= 2460688.791076392867 N = 5.618139053721918E-06 MA= 3.595382322795888E+02 TA= 1.824097539651663E+02 A = 3.135223560417277E+03 AD= 6.270352665293587E+03 PR= 6.407815765284526E+07 2524593.500000000 = A.D. 2200-Jan-01 00:00:00.0000 TDB EC= 9.999865554096647E-01 QR= 9.173983762555733E-02 IN= 1.168550126989865E+02 OM= 2.204799195943970E+02 W = 1.080872598282649E+02 Tp= 2460689.428732448723 N = 1.749764757208874E-06 MA= 1.118170917461045E-01 TA= 1.773958422747331E+02 A = 6.823550241014964E+03 AD= 1.364700874219230E+04 PR= 2.057419424621694E+08 $$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 CENTER = '@0' COMMAND = '2024 G3' OUT_UNITS = 'AU-D' START_TIME = '1800-01-01' STEP_SIZE = '400 years' STOP_TIME = '2200-01-01' TABLE_TYPE = 'ELEMENTS'