******************************************************************************* JPL/HORIZONS ZTF (C/2022 E3) 2024-Mar-19 00:04:48 Rec #:90004717 (+COV) Soln.date: 2024-Jan-26_23:43:10 # obs: 5315 (2021-2024) IAU76/J2000 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs): EPOCH= 2459873.5 ! 2022-Oct-21.0000000 (TDB) RMSW= n.a. EC= 1.000301841479404 QR= 1.112244353595888 TP= 2459957.2852011295 OM= 302.5550188720955 W= 145.8149303351015 IN= 109.1694804071026 A= -3684.862517212391 MA= -.000369181097956957ADIST= 9.999999E99 PER= 9.999999E99 N= 4.406E-6 ANGMOM= .025658385 DAN= 12.89579 DDN= 1.21743 L= 135.1279551 B= 32.0536459 MOID= .219806 TP= 2023-Jan-12.7852011295 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= 0. A2= -5.732946097851E-10 A3= -1.68365329504E-9 Standard model: ALN= .1112620426 NK= 4.6142 NM= 2.15 NN= 5.093 R0= 2.808 COMET comments 1: soln ref.= JPL#79, data arc: 2021-10-25 to 2024-01-12 2: k1=4.5; ******************************************************************************* ******************************************************************************* Ephemeris / WWW_USER Tue Mar 19 00:04:48 2024 Pasadena, USA / Horizons ******************************************************************************* Target body name: ZTF (C/2022 E3) {source: JPL#79} 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= 2459873.5 ! 2022-Oct-21.0000000 (TDB) RMSW= n.a. EC= 1.000301841479404 QR= 1.112244353595888 TP= 2459957.2852011295 OM= 302.5550188720955 W= 145.8149303351015 IN= 109.1694804071026 Equivalent ICRF heliocentric cartesian coordinates (au, au/d): X=-1.860700769526946E-01 Y=-1.267765256694422E+00 Z= 1.139634551708589E+00 VX=-7.712229409257830E-03 VY= 1.687713706421903E-02 VZ= 9.417114639460678E-04 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= 0. A2= -5.732946097851E-10 A3= -1.68365329504E-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 ******************************************************************************* $$SOE 2433282.500000000 = A.D. 1950-Jan-01 00:00:00.0000 TDB EC= 9.991956085980196E-01 QR= 1.119738411366850E+00 IN= 1.091191201902930E+02 OM= 3.025564637773821E+02 W = 1.457093379967122E+02 Tp= 2459957.241216259543 N = 1.898984939278654E-05 MA= 3.594934506817117E+02 TA= 1.921557397172693E+02 A = 1.392031800202688E+03 AD= 2.782943861994010E+03 PR= 1.895749632099500E+07 2469807.500000000 = A.D. 2050-Jan-01 00:00:00.0000 TDB EC= 9.999866624296595E-01 QR= 1.114985169784742E+00 IN= 1.090871548082128E+02 OM= 3.026992255070073E+02 W = 1.459241720742668E+02 Tp= 2459957.946405337658 N = 4.080437246478551E-08 MA= 4.019048534896583E-04 TA= 1.627357284347736E+02 A = 8.359732254574206E+04 AD= 1.671935301063143E+05 PR= 8.822583910846388E+09 $$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'