******************************************************************************* JPL/HORIZONS ZTF (C/2020 V2) 2025-Dec-12 17:57:38 Rec #:90004648 (+COV) Soln.date: 2025-Sep-30_13:39:21 # obs: 5767 (2020-2025) IAU76/J2000 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs): EPOCH= 2459859.5 ! 2022-Oct-07.0000000 (TDB) RMSW= n.a. EC= 1.00089953037377 QR= 2.227959873700067 TP= 2460073.0565899527 OM= 212.3712351547342 W= 162.4243172377264 IN= 131.6110418896687 A= -2476.803383928579 MA= -.001707574862428149ADIST= 9.999999E99 PER= 9.999999E99 N= 7.995999999999999E-6 ANGMOM= .036320161 DAN= 97.28456 DDN= 2.28123 L= 44.2499643 B= 13.0481872 MOID= 1.26013994 TP= 2023-May-08.5565899527 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= n.a. M1= 8.7 M2= n.a. k1= 4.5 k2= n.a. PHCOF= n.a. Comet non-gravitational force model (AMRAT=m^2/kg;A1-A3=au/d^2;DT=days;R0=au): AMRAT= 0. DT= -195.4587 A1= 5.352464675903E-8 A2= 8.752855658531E-9 A3= -5.690488219261E-9 Standard model: ALN= .1112620426 NK= 4.6142 NM= 2.15 NN= 5.093 R0= 2.808 COMET comments 1: soln ref.= JPL#151, data arc: 2020-04-18 to 2025-09-29 2: k1=4.5; ******************************************************************************* ******************************************************************************* Ephemeris / WWW_USER Fri Dec 12 17:57:38 2025 Pasadena, USA / Horizons ******************************************************************************* Target body name: ZTF (C/2020 V2) {source: JPL#151} 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= 2459859.5 ! 2022-Oct-07.0000000 (TDB) RMSW= n.a. EC= 1.00089953037377 QR= 2.227959873700067 TP= 2460073.0565899527 OM= 212.3712351547342 W= 162.4243172377264 IN= 131.6110418896687 Equivalent ICRF heliocentric cartesian coordinates (au, au/d): X=-9.523601635943135E-01 Y= 8.208844361419482E-01 Z= 2.998370286635819E+00 VX= 1.191813759953126E-02 VY= 3.383455036680487E-03 VZ=-5.353104827290538E-03 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= n.a. M1= 8.7 M2= n.a. k1= 4.5 k2= n.a. PHCOF= n.a. Comet non-gravitational force model (AMRAT=m^2/kg;A1-A3=au/d^2;DT=days;R0=au): AMRAT= 0. DT= -195.4587 A1= 5.352464675903E-8 A2= 8.752855658531E-9 A3= -5.690488219261E-9 Standard model: ALN= .1112620426 NK= 4.6142 NM= 2.15 NN= 5.093 R0= 2.808 ******************************************************************************* JDTDB EC QR IN OM W Tp N MA TA A AD PR ******************************************************************************* $$SOE 2378496.500000000 = A.D. 1800-Jan-01 00:00:00.0000 TDB EC= 9.999379032070400E-01 QR= 2.224914280755567E+00 IN= 1.316491664594110E+02 OM= 2.123318485442972E+02 W = 1.625401653013820E+02 Tp= 2460074.234702048358 N = 1.454216563071134E-07 MA= 3.599881368307019E+02 TA= 1.919512473905883E+02 A = 3.582977758937931E+04 AD= 7.165733026447786E+04 PR= 2.475559755967312E+09 2524593.500000000 = A.D. 2200-Jan-01 00:00:00.0000 TDB EC= 1.000424129585119E+00 QR= 2.218996192102534E+00 IN= 1.316144842429809E+02 OM= 2.124546107866840E+02 W = 1.623267873045189E+02 Tp= 2460073.333919416182 N = 2.606203186143902E-06 MA= 1.681526624097511E-01 TA= 1.669793204194801E+02 A =-5.231882589568145E+03 AD= 9.999999999999998E+99 PR= 9.999999999999998E+99 $$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/horizons_batch.txt scripts https://ssd.jpl.nasa.gov/ftp/ssd/SCRIPTS Author : Jon.D.Giorgini@jpl.nasa.gov ******************************************************************************* !$$SOF CENTER = '@0' COMMAND = '2020 V2' OUT_UNITS = 'AU-D' START_TIME = '1800-01-01' STEP_SIZE = '400 years' STOP_TIME = '2200-01-01' TABLE_TYPE = 'ELEMENTS'