******************************************************************************* JPL/HORIZONS ZTF (C/2022 E3) 2023-Jun-07 15:50:09 Rec #:90004695 (+COV) Soln.date: 2023-May-03_22:43:35 # obs: 4746 (2021-2023) IAU76/J2000 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs): EPOCH= 2459865.5 ! 2022-Oct-13.0000000 (TDB) RMSW= n.a. EC= 1.000303201155111 QR= 1.112238340259233 TP= 2459957.2842239258 OM= 302.5547286194922 W= 145.8148720233891 IN= 109.1691628575107 A= -3668.318281479553 MA= -.000407166087429664ADIST= 9.999999E99 PER= 9.999999E99 N= 4.436E-6 ANGMOM= .025658324 DAN= 12.89577 DDN= 1.21742 L= 135.1274974 B= 32.0537688 MOID= .22126 TP= 2023-Jan-12.7842239258 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= n.a. M1= 10.8 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= 0. A1= 9.049359560013E-9 A2= -7.706755399704E-9 A3= 1.911192089319E-9 Standard model: ALN= .1112620426 NK= 4.6142 NM= 2.15 NN= 5.093 R0= 2.808 COMET comments 1: soln ref.= JPL#52, data arc: 2021-10-25 to 2023-04-24 2: k1=4.5; ******************************************************************************* ******************************************************************************* Ephemeris / WWW_USER Wed Jun 7 15:50:09 2023 Pasadena, USA / Horizons ******************************************************************************* Target body name: ZTF (C/2022 E3) {source: JPL#52} Center body name: Solar System Barycenter (0) {source: DE441} Center-site name: BODY CENTER ******************************************************************************* Start time : A.D. 1950-Jan-01 00:00:00.0000 TDB Stop time : A.D. 2050-Jan-01 00:00:00.0000 TDB Step-size : 100 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 : 2.9630927493983752E-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= 2459865.5 ! 2022-Oct-13.0000000 (TDB) RMSW= n.a. EC= 1.000303201155111 QR= 1.112238340259233 TP= 2459957.2842239258 OM= 302.5547286194922 W= 145.8148720233891 IN= 109.1691628575107 Equivalent ICRF heliocentric cartesian coordinates (au, au/d): X=-1.240727453726989E-01 Y=-1.400427463056758E+00 Z= 1.130069444151405E+00 VX=-7.780079444312764E-03 VY= 1.629692991470247E-02 VZ= 1.436013129230523E-03 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= n.a. M1= 10.8 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= 0. A1= 9.049359560013E-9 A2= -7.706755399704E-9 A3= 1.911192089319E-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 ******************************************************************************* $$SOE 2433282.500000000 = A.D. 1950-Jan-01 00:00:00.0000 TDB EC= 9.992073869165355E-01 QR= 1.119735541393863E+00 IN= 1.091187815471882E+02 OM= 3.025561512529769E+02 W = 1.457088956611437E+02 Tp= 2459957.239795137662 N = 1.857436243780275E-05 MA= 3.595045337151111E+02 TA= 1.921582264320579E+02 A = 1.412713926572006E+03 AD= 2.824308117602618E+03 PR= 1.938155353678918E+07 2469807.500000000 = A.D. 2050-Jan-01 00:00:00.0000 TDB EC= 9.998920571555751E-01 QR= 1.114953871262546E+00 IN= 1.090862318192041E+02 OM= 3.026993008689157E+02 W = 1.459207395225421E+02 Tp= 2459957.943893925287 N = 9.395084547397024E-07 MA= 9.253741237095027E-03 TA= 1.627500140627266E+02 A = 1.032911331182767E+04 AD= 2.065711166978408E+04 PR= 3.831790956045634E+08 $$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/hrzn_batch.txt scripts https://ssd.jpl.nasa.gov/ftp/ssd/SCRIPTS Author : Jon.D.Giorgini@jpl.nasa.gov ******************************************************************************* !$$SOF COMMAND = '2022 E3' TABLE_TYPE = 'ELEMENTS' START_TIME = '1950-01-01' STOP_TIME = '2050-01-01' STEP_SIZE = '100 years' CENTER = '@0' OUT_UNITS = 'AU-D'