******************************************************************************* JPL/HORIZONS Catalina (C/1999 F1) 2024-Apr-16 05:07:06 Rec #:90002450 (+COV) Soln.date: 2021-Apr-15_23:29:57 # obs: 166 (1999-2005) IAU76/J2000 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs): EPOCH= 2452054.5 ! 2001-May-25.0000000 (TDB) RMSW= n.a. EC= .9991295234393676 QR= 5.787018611359847 TP= 2452319.1440778025 OM= 20.02313274635543 W= 255.157503764398 IN= 92.03538807790534 A= 6648.103892832371 MA= 359.9995188067162 ADIST= 13290.42076705338 PER= 542069.40870041 N= 1.818E-6 ANGMOM= .058509899 DAN= 15.54847 DDN= 9.21143 L= 192.3896717 B= -75.02170219999999 MOID= 5.45342016 TP= 2002-Feb-13.6440778025 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= n.a. M1= 5.9 M2= 9. k1= 7.5 k2= 5. PHCOF= .030 COMET comments 1: soln ref.= JPL#45, data arc: 1999-03-13 to 2005-08-28 2: k1=7.5, k2=5., phase coef.=0.03; ******************************************************************************* ******************************************************************************* Ephemeris / WWW_USER Tue Apr 16 05:07:06 2024 Pasadena, USA / Horizons ******************************************************************************* Target body name: Catalina (C/1999 F1) {source: JPL#45} 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 : 2.9630927493968080E-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= 2452054.5 ! 2001-May-25.0000000 (TDB) RMSW= n.a. EC= .9991295234393676 QR= 5.787018611359847 TP= 2452319.1440778025 OM= 20.02313274635543 W= 255.157503764398 IN= 92.03538807790534 Equivalent ICRF heliocentric cartesian coordinates (au, au/d): X=-3.766090267702720E+00 Y= 7.423706275838444E-01 Z=-4.722535467430159E+00 VX= 8.149498648801773E-03 VY= 4.702477656638935E-03 VZ=-2.945289653202130E-03 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= n.a. M1= 5.9 M2= 9. k1= 7.5 k2= 5. PHCOF= .030 ******************************************************************************* JDTDB EC QR IN OM W Tp N MA TA A AD PR ******************************************************************************* $$SOE 2433282.500000000 = A.D. 1950-Jan-01 00:00:00.0000 TDB EC= 9.997872595514825E-01 QR= 5.788459967594579E+00 IN= 9.197385643981873E+01 OM= 2.002486749816134E+01 W = 2.551926544664590E+02 Tp= 2452319.602807774674 N = 2.197484446784836E-07 MA= 3.599958166262668E+02 TA= 2.126645435483640E+02 A = 2.720902399108369E+04 AD= 5.441225952219978E+04 PR= 1.638236850898854E+09 2469807.500000000 = A.D. 2050-Jan-01 00:00:00.0000 TDB EC= 9.998243565344760E-01 QR= 5.783952031963323E+00 IN= 9.198993583422292E+01 OM= 2.000169996263070E+01 W = 2.551668703600597E+02 Tp= 2452320.137814877089 N = 1.650464651917324E-07 MA= 2.886227314204341E-03 TA= 1.463140482408000E+02 A = 3.293007237539009E+04 AD= 6.585436079874822E+04 PR= 2.181203939034941E+09 $$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 = '1999 F1' TABLE_TYPE = 'ELEMENTS' START_TIME = '1950-01-01' STOP_TIME = '2050-01-01' STEP_SIZE = '100 years' CENTER = '@0' OUT_UNITS = 'AU-D'