******************************************************************************* JPL/HORIZONS Spacewatch (C/1992 J1) 2024-May-05 19:54:33 Rec #:90002164 (+COV) Soln.date: 2021-Apr-15_23:29:41 # obs: 240 (1992-1995) IAU76/J2000 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs): EPOCH= 2449202.5 ! 1993-Aug-03.0000000 (TDB) RMSW= n.a. EC= .9999734913795164 QR= 3.007011030180084 TP= 2449236.0419731606 OM= 203.3241326250259 W= 83.39944199005573 IN= 124.3187544758918 A= 113435.2137276099 MA= 359.9999991346917 ADIST= 226867.4204441897 PER= 38205865.525159 N= 2.6E-8 ANGMOM= .042185293 DAN= 5.39394 DDN= 6.79498 L= 124.922478 B= 55.128798 MOID= 2.54094005 TP= 1993-Sep-05.5419731606 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= n.a. M1= 8.3 M2= 14.2 k1= 9.25 k2= 5. PHCOF= .030 COMET comments 1: soln ref.= JPL#2, data arc: 1992-05-01 to 1995-02-02 2: k1=9.25, k2=5., phase coef.=0.03; ******************************************************************************* ******************************************************************************* Ephemeris / WWW_USER Sun May 5 19:54:33 2024 Pasadena, USA / Horizons ******************************************************************************* Target body name: Spacewatch (C/1992 J1) {source: JPL#2} 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= 2449202.5 ! 1993-Aug-03.0000000 (TDB) RMSW= n.a. EC= .9999734913795164 QR= 3.007011030180084 TP= 2449236.0419731606 OM= 203.3241326250259 W= 83.39944199005573 IN= 124.3187544758918 Equivalent ICRF heliocentric cartesian coordinates (au, au/d): X=-1.394511504951659E+00 Y= 1.326959296386498E-01 Z= 2.681500324813410E+00 VX= 1.200541938297402E-02 VY= 5.379446144618371E-03 VZ= 4.748784832674634E-03 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= n.a. M1= 8.3 M2= 14.2 k1= 9.25 k2= 5. PHCOF= .030 ******************************************************************************* JDTDB EC QR IN OM W Tp N MA TA A AD PR ******************************************************************************* $$SOE 2378496.500000000 = A.D. 1800-Jan-01 00:00:00.0000 TDB EC= 9.999198288782825E-01 QR= 3.000477498732761E+00 IN= 1.242875755101351E+02 OM= 2.032730518909398E+02 W = 8.345354397188515E+01 Tp= 2449234.688615837134 N = 1.362186695078985E-07 MA= 3.599903641380633E+02 TA= 1.946069972056812E+02 A = 3.742591390091515E+04 AD= 7.484882732433156E+04 PR= 2.642809545127189E+09 2524593.500000000 = A.D. 2200-Jan-01 00:00:00.0000 TDB EC= 9.983594080745783E-01 QR= 3.003825536626399E+00 IN= 1.244063872936226E+02 OM= 2.034210657557336E+02 W = 8.333082687092366E+01 Tp= 2449236.067374715116 N = 1.258879183709629E-05 MA= 9.486590326977379E-01 TA= 1.659801635662514E+02 A = 1.830940095511620E+03 AD= 3.658876365486615E+03 PR= 2.859686653481412E+07 $$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 = '1992 J1' TABLE_TYPE = 'ELEMENTS' START_TIME = '1800-01-01' STOP_TIME = '2200-01-01' STEP_SIZE = '400 years' CENTER = '@0' OUT_UNITS = 'AU-D'