******************************************************************************* JPL/HORIZONS C/1680 V1 (C/1680 V1) 2024-May-03 15:51:50 Rec #:90001534 Soln.date: - # obs: 30 (1680-1681) IAU76/J2000 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs): EPOCH= 2335000.5 ! 1680-Nov-29.0000000 (TDB) RMSW= n.a. EC= .999986 QR= .006222 TP= 2335019.9876000001 OM= 276.6339 W= 350.6128 IN= 60.6784 A= 444.4285714298892 MA= 359.9979499735049 ADIST= 888.8509208597784 PER= 9369.3865937998 N= .000105196 ANGMOM= .001918933 DAN= .00626 DDN= .9282899999999999 L= 272.0053992 B= -8.175705799999999 TP= 1680-Dec-18.4876000001 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= n.a. M1= n.a. M2= n.a. k1= n.a. k2= n.a. PHCOF= n.a. COMET comments 1: soln ref.= SAO_2008, data arc: 1680-11-14 to 1681-03-19 2: epoch may be 2335001.0 (hour ambiguous: 12h/0h); time units are UT, but set to E ******************************************************************************* ******************************************************************************* Ephemeris / WWW_USER Fri May 3 15:51:50 2024 Pasadena, USA / Horizons ******************************************************************************* Target body name: C/1680 V1 (C/1680 V1) {source: DASTCOM} Center body name: Solar System Barycenter (0) {source: DE441} Center-site name: BODY CENTER ******************************************************************************* Start time : A.D. 1600-Jan-01 00:00:00.0000 TDB Stop time : A.D. 1800-Jan-01 00:00:00.0000 TDB Step-size : 200 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= 2335000.5 ! 1680-Nov-29.0000000 (TDB) RMSW= n.a. EC= .999986 QR= .006222 TP= 2335019.9876000001 OM= 276.6339 W= 350.6128 IN= 60.6784 Equivalent ICRF heliocentric cartesian coordinates (au, au/d): X=-9.659371615788363E-02 Y= 7.234527519096344E-01 Z= 3.033150270998748E-01 VX= 2.152452340730176E-03 VY=-2.425098769675853E-02 VZ=-1.246463674616776E-02 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= n.a. M1= n.a. M2= n.a. k1= n.a. k2= n.a. PHCOF= n.a. ******************************************************************************* JDTDB EC QR IN OM W Tp N MA TA A AD PR ******************************************************************************* $$SOE 2305447.500000000 = A.D. 1600-Jan-01 00:00:00.0000 TDB EC= 9.999868754852161E-01 QR= 6.105279524406293E-03 IN= 5.721140668190946E+01 OM= 2.771247155887621E+02 W = 3.504037768151552E+02 Tp= 2335019.351880121510 N = 9.830187717393481E-05 MA= 3.570930314486745E+02 TA= 1.808326965073879E+02 A = 4.651813514416212E+02 AD= 9.303565976037179E+02 PR= 3.662188458141221E+06 2378496.500000000 = A.D. 1800-Jan-01 00:00:00.0000 TDB EC= 9.999853738997913E-01 QR= 6.980862113559086E-03 IN= 6.058900033518010E+01 OM= 2.766507732113718E+02 W = 3.508291906537385E+02 Tp= 2335020.617028673179 N = 9.458548223396099E-05 MA= 4.112187356390231E+00 TA= 1.792269312048171E+02 A = 4.772879998078844E+02 AD= 9.545690187536552E+02 PR= 3.806080928038464E+06 $$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 = '1680 V1' TABLE_TYPE = 'ELEMENTS' START_TIME = '1600-01-01' STOP_TIME = '1800-01-01' STEP_SIZE = '200 years' CENTER = '@0' OUT_UNITS = 'AU-D'