******************************************************************************* JPL/HORIZONS Fabry (C/1885 X1) 2025-Dec-12 18:02:50 Rec #:90001797 (+COV) Soln.date: 2021-Apr-15_23:28:53 # obs: 46 (1885-1886) IAU76/J2000 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs): EPOCH= 2409924.5 ! 1886-Jan-18.0000000 (TDB) RMSW= n.a. EC= 1.000387113881838 QR= .642382938451641 TP= 2410002.9556111791 OM= 37.96246203477163 W= 126.5889757158978 IN= 82.62977642782661 A= -1659.415920197626 MA= -.001143918820525651ADIST= 9.999999E99 PER= 9.999999E99 N= 1.458E-5 ANGMOM= .019500038 DAN= 3.1831 DDN= .805 L= 208.1586283 B= 52.7780582 MOID= .181171 TP= 1886-Apr-06.4556111791 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.= JPL#3, data arc: 1885-12-03 to 1886-04-24 2: ******************************************************************************* ******************************************************************************* Ephemeris / WWW_USER Fri Dec 12 18:02:50 2025 Pasadena, USA / Horizons ******************************************************************************* Target body name: Fabry (C/1885 X1) {source: JPL#3} 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= 2409924.5 ! 1886-Jan-18.0000000 (TDB) RMSW= n.a. EC= 1.000387113881838 QR= .642382938451641 TP= 2410002.9556111791 OM= 37.96246203477163 W= 126.5889757158978 IN= 82.62977642782661 Equivalent ICRF heliocentric cartesian coordinates (au, au/d): X= 1.103960533804063E+00 Y= 6.242595355713005E-01 Z= 1.002447088020556E+00 VX=-1.499391129788444E-02 VY=-1.189352257058757E-02 VZ=-4.225918440563595E-05 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 ******************************************************************************* $$SOE 2378496.500000000 = A.D. 1800-Jan-01 00:00:00.0000 TDB EC= 9.999379333080428E-01 QR= 6.400546635801813E-01 IN= 8.275844331053612E+01 OM= 3.785277270642792E+01 W = 1.266758084309120E+02 Tp= 2410002.378100009635 N = 9.417975453587231E-07 MA= 3.599703278413410E+02 TA= 1.887648624537192E+02 A = 1.031236953996005E+04 AD= 2.062409902525652E+04 PR= 3.822477577841625E+08 2524593.500000000 = A.D. 2200-Jan-01 00:00:00.0000 TDB EC= 1.000100583880689E+00 QR= 6.406401319788717E-01 IN= 8.260932777668278E+01 OM= 3.813645000142095E+01 W = 1.265264960781536E+02 Tp= 2410003.559830947779 N = 1.940289908862167E-06 MA= 2.223377045671311E-01 TA= 1.742527242612067E+02 A =-6.369212716719366E+03 AD= 9.999999999999998E+99 PR= 9.999999999999998E+99 $$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/horizons_batch.txt scripts https://ssd.jpl.nasa.gov/ftp/ssd/SCRIPTS Author : Jon.D.Giorgini@jpl.nasa.gov ******************************************************************************* !$$SOF CENTER = '@0' COMMAND = '1885 X1' OUT_UNITS = 'AU-D' START_TIME = '1800-01-01' STEP_SIZE = '400 years' STOP_TIME = '2200-01-01' TABLE_TYPE = 'ELEMENTS'