******************************************************************************* JPL/HORIZONS Tsuchinshan-ATLAS (C/2023 A3) 2024-May-22 18:41:54 Rec #:90004764 (+COV) Soln.date: 2024-May-14_12:42:19 # obs: 3837 (2022-2024) IAU76/J2000 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs): EPOCH= 2460219.5 ! 2023-Oct-02.0000000 (TDB) RMSW= n.a. EC= 1.000155171469764 QR= .3914635380948364 TP= 2460581.2178213792 OM= 21.55615109250219 W= 308.4823264889816 IN= 139.1201582526815 A= -2522.780371224393 MA= -.00281355115297587 ADIST= 9.999999E99 PER= 9.999999E99 N= 7.778000000000001E-6 ANGMOM= .015221552 DAN= .48262 DDN= 2.07342 L= 65.1213515 B= -30.8186878 MOID= .2753 TP= 2024-Sep-27.7178213792 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= n.a. M1= 7.3 M2= 9.3 k1= 7. k2= 5. PHCOF= .030 COMET comments 1: soln ref.= JPL#44, data arc: 2022-04-09 to 2024-05-13 2: k1=7., k2=5., phase coef.=0.03; ******************************************************************************* ******************************************************************************* Ephemeris / WWW_USER Wed May 22 18:41:54 2024 Pasadena, USA / Horizons ******************************************************************************* Target body name: Tsuchinshan-ATLAS (C/2023 A3) {source: JPL#44} Center body name: Sun (10) {source: DE441} Center-site name: BODY CENTER ******************************************************************************* Start time : A.D. 2024-Sep-01 00:00:00.0000 TDB Stop time : A.D. 2024-Sep-02 00:00:00.0000 TDB Step-size : 1 calendar months ******************************************************************************* 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 : 695700.0, 695700.0, 695700.0 km {Equator_a, b, pole_c} Keplerian GM : 2.9591220828411951E-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= 2460219.5 ! 2023-Oct-02.0000000 (TDB) RMSW= n.a. EC= 1.000155171469764 QR= .3914635380948364 TP= 2460581.2178213792 OM= 21.55615109250219 W= 308.4823264889816 IN= 139.1201582526815 Equivalent ICRF heliocentric cartesian coordinates (au, au/d): X=-4.083418990547158E+00 Y=-3.254125434083653E+00 Z=-1.530873913099517E-01 VX= 6.330433113174530E-03 VY= 8.533206521587086E-03 VZ=-7.233544139171947E-04 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= n.a. M1= 7.3 M2= 9.3 k1= 7. k2= 5. PHCOF= .030 ******************************************************************************* JDTDB EC QR IN OM W Tp N MA TA A AD PR ******************************************************************************* $$SOE 2460554.500000000 = A.D. 2024-Sep-01 00:00:00.0000 TDB EC= 1.000092704589935E+00 QR= 3.914128974401655E-01 IN= 1.391103415964791E+02 OM= 2.155951799709446E+01 W = 3.084934877261367E+02 Tp= 2460581.240524813533 N = 3.592553395727271E-06 MA=-9.606676322200889E-05 TA= 2.701461827239065E+02 A =-4.222152298131439E+03 AD= 9.999999999999998E+99 PR= 9.999999999999998E+99 $$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/hrzn_batch.txt scripts https://ssd.jpl.nasa.gov/ftp/ssd/SCRIPTS Author : Jon.D.Giorgini@jpl.nasa.gov ******************************************************************************* !$$SOF CENTER = '@Sun' COMMAND = '2023 A3' OUT_UNITS = 'AU-D' START_TIME = '2024-09-01' STEP_SIZE = '1 month' STOP_TIME = '2024-09-02' TABLE_TYPE = 'ELEMENTS'