******************************************************************************* JPL/HORIZONS Bernardinelli-Bernstein (C/2014 UN271) 2024-May-02 12:54:07 Rec #:90004270 (+COV) Soln.date: 2024-Apr-29_13:12:17 # obs: 595 (2010-2024) IAU76/J2000 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs): EPOCH= 2458400.5 ! 2018-Oct-09.0000000 (TDB) RMSW= n.a. EC= .9980368672495172 QR= 10.93804028229074 TP= 2462894.627714253 OM= 190.058540472261 W= 326.3842399842929 IN= 95.5321316051965 A= 5571.727270914766 MA= 359.9893496296782 ADIST= 11132.51650154724 PER= 415903.88523233 N= 2.37E-6 ANGMOM= .08041794100000001 DAN= 11.93501 DDN= 129.41994 L= 193.7255469 B= -33.4385301 MOID= 10.08950043 TP= 2031-Jan-28.1277142530 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= n.a. M1= 6. M2= n.a. k1= 4.75 k2= n.a. PHCOF= n.a. COMET comments 1: soln ref.= JPL#63, data arc: 2010-11-15 to 2024-04-09 2: k1=4.75; ******************************************************************************* ******************************************************************************* Ephemeris / WWW_USER Thu May 2 12:54:07 2024 Pasadena, USA / Horizons ******************************************************************************* Target body name: Bernardinelli-Bernstein (C/2014 UN271) {source: JPL#63} Center body name: Sun (10) {source: DE441} Center-site name: BODY CENTER ******************************************************************************* Start time : A.D. 2021-Jul-01 00:00:00.0000 TDB Stop time : A.D. 2100-Jan-01 00:00:00.0000 TDB Step-size : 150 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 : 695700.0, 695700.0, 695700.0 km {Equator_a, b, pole_c} Keplerian GM : 2.9591220828411951E-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= 2458400.5 ! 2018-Oct-09.0000000 (TDB) RMSW= n.a. EC= .9980368672495172 QR= 10.93804028229074 TP= 2462894.627714253 OM= 190.058540472261 W= 326.3842399842929 IN= 95.5321316051965 Equivalent ICRF heliocentric cartesian coordinates (au, au/d): X= 1.484084902356860E+01 Y= 8.131230833139627E+00 Z=-1.673328023999834E+01 VX=-4.857920029252829E-03 VY=-1.028492261076356E-03 VZ= 3.972498277191598E-04 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= n.a. M1= 6. M2= n.a. k1= 4.75 k2= n.a. PHCOF= n.a. ******************************************************************************* JDTDB EC QR IN OM W Tp N MA TA A AD PR ******************************************************************************* $$SOE 2459396.500000000 = A.D. 2021-Jul-01 00:00:00.0000 TDB EC= 9.984851491552045E-01 QR= 1.093378382507978E+01 IN= 9.544596719739306E+01 OM= 1.899294392392874E+02 W = 3.263806212263927E+02 Tp= 2462893.744509209879 N = 1.607323000590771E-06 MA= 3.599943787984617E+02 TA= 2.748660659814981E+02 A = 7.217729628394202E+03 AD= 1.442452547296333E+04 PR= 2.239748948205693E+08 $$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 = '2014 UN271' TABLE_TYPE = 'ELEMENTS' START_TIME = '2021-Jul-01' STOP_TIME = '2100-01-01' STEP_SIZE = '150 years' CENTER = '@sun' OUT_UNITS = 'AU-D'