******************************************************************************* JPL/HORIZONS Lovejoy (C/2011 W3) 2024-Apr-27 16:42:51 Rec #:90004115 (+COV) Soln.date: 2012-Jun-04_12:31:54 # obs: 123 (2011-2012) IAU76/J2000 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs): EPOCH= 2455901.5 ! 2011-Dec-06.0000000 (TDB) RMSW= n.a. EC= .9999294152687144 QR= .005553814151232848 TP= 2455911.5118089998 OM= 326.3691470244605 W= 53.50921241435645 IN= 134.3558107377023 A= 78.68293963971914 MA= 359.9858617465074 ADIST= 157.360325465287 PER= 697.95764373996 N= .001412158 ANGMOM= .001812944 DAN= .00697 DDN= .0274 L= 282.985468 B= 35.08813 MOID= .490179 TP= 2011-Dec-16.0118089998 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= n.a. M1= 15.3 M2= 20.6 k1= 9.3 k2= 5. PHCOF= .030 COMET comments 1: soln ref.= JPL#58, data arc: 2011-11-27 to 2012-01-06 2: k1=9.3, k2=5., phase coef.=0.03; ******************************************************************************* ******************************************************************************* Ephemeris / WWW_USER Sat Apr 27 16:42:51 2024 Pasadena, USA / Horizons ******************************************************************************* Target body name: Lovejoy (C/2011 W3) {source: JPL#58} 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= 2455901.5 ! 2011-Dec-06.0000000 (TDB) RMSW= n.a. EC= .9999294152687144 QR= .005553814151232848 TP= 2455911.5118089998 OM= 326.3691470244605 W= 53.50921241435645 IN= 134.3558107377023 Equivalent ICRF heliocentric cartesian coordinates (au, au/d): X= 3.777408211027497E-03 Y= 4.827201187256207E-01 Z=-1.490745024244305E-01 VX= 3.040833769315030E-03 VY=-3.291068817977454E-02 VZ= 8.676278963108908E-03 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= n.a. M1= 15.3 M2= 20.6 k1= 9.3 k2= 5. PHCOF= .030 ******************************************************************************* JDTDB EC QR IN OM W Tp N MA TA A AD PR ******************************************************************************* $$SOE 2378496.500000000 = A.D. 1800-Jan-01 00:00:00.0000 TDB EC= 9.999290612643819E-01 QR= 5.503597947617812E-03 IN= 1.336637802216146E+02 OM= 3.249705223888314E+02 W = 5.252739405381524E+01 Tp= 2455911.487225114834 N = 1.443279259065251E-03 MA= 2.482685545971906E+02 TA= 1.802166515949762E+02 A = 7.758240825191329E+01 AD= 1.551593129058789E+02 PR= 2.494319777263039E+05 2524593.500000000 = A.D. 2200-Jan-01 00:00:00.0000 TDB EC= 9.999215110293708E-01 QR= 5.721740379537905E-03 IN= 1.356544030633953E+02 OM= 3.286957700467948E+02 W = 5.520799638636404E+01 Tp= 2455911.669732494745 N = 1.584586615721840E-03 MA= 1.088323089851678E+02 TA= 1.797610053852554E+02 A = 7.289865485123764E+01 AD= 1.457915879620957E+02 PR= 2.271885906571325E+05 $$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 = '2011 W3' TABLE_TYPE = 'ELEMENTS' START_TIME = '1800-01-01' STOP_TIME = '2200-01-01' STEP_SIZE = '400 years' CENTER = '@0' OUT_UNITS = 'AU-D'