******************************************************************************* JPL/HORIZONS Bernardinelli-Bernstein (C/2014 UN271) 2023-Sep-22 01:01:33 Rec #:90004250 (+COV) Soln.date: 2023-Sep-06_00:42:34 # obs: 396 (2014-2023) IAU76/J2000 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs): EPOCH= 2458195.5 ! 2018-Mar-18.0000000 (TDB) RMSW= n.a. EC= .9985331782945464 QR= 10.94348845224363 TP= 2462893.32829386 OM= 190.0798003508541 W= 326.3445677148678 IN= 95.54929417152914 A= 7460.680743648469 MA= 359.9928148882197 ADIST= 14910.41799884469 PER= 644430.20272333 N= 1.529E-6 ANGMOM= .080447956 DAN= 11.94372 DDN= 129.53984 L= 193.7636281 B= -33.4768356 MOID= 10.09679985 TP= 2031-Jan-26.8282938600 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= n.a. M1= 6.2 M2= n.a. k1= 4.75 k2= n.a. PHCOF= n.a. COMET comments 1: soln ref.= JPL#43, data arc: 2014-08-14 to 2023-09-01 2: k1=4.75; ******************************************************************************* ******************************************************************************* Ephemeris / WWW_USER Fri Sep 22 01:01:34 2023 Pasadena, USA / Horizons ******************************************************************************* Target body name: Bernardinelli-Bernstein (C/2014 UN271) {source: JPL#43} 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. 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 : (undefined) Keplerian GM : 2.9630927493983752E-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= 2458195.5 ! 2018-Mar-18.0000000 (TDB) RMSW= n.a. EC= .9985331782945464 QR= 10.94348845224363 TP= 2462893.32829386 OM= 190.0798003508541 W= 326.3445677148678 IN= 95.54929417152914 Equivalent ICRF heliocentric cartesian coordinates (au, au/d): X= 1.583000791245327E+01 Y= 8.338573662741698E+00 Z=-1.680711192306088E+01 VX=-4.793173905189417E-03 VY=-9.947562990505674E-04 VZ= 3.243956121055970E-04 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= n.a. M1= 6.2 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 ******************************************************************************* $$SOE 2433282.500000000 = A.D. 1950-Jan-01 00:00:00.0000 TDB EC= 9.994476913126533E-01 QR= 1.094907648622393E+01 IN= 9.546599451289633E+01 OM= 1.900025352493430E+02 W = 3.262796827629795E+02 Tp= 2462887.966005538125 N = 3.533473450024511E-07 MA= 3.599895389871893E+02 TA= 2.195300056127495E+02 A = 1.982419747700341E+04 AD= 3.963744587752060E+04 PR= 1.018827522243029E+09 2488069.500000000 = A.D. 2100-Jan-01 00:00:00.0000 TDB EC= 9.995994770299796E-01 QR= 1.094870088077528E+01 IN= 9.546029915560058E+01 OM= 1.900089465330065E+02 W = 3.262453988668270E+02 Tp= 2462887.919927342329 N = 2.182189746250140E-07 MA= 5.495098582918495E-03 TA= 1.379494686641259E+02 A = 2.733601241455023E+04 AD= 5.466107612821968E+04 PR= 1.649719052243837E+09 $$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 = '2014 UN271' TABLE_TYPE = 'ELEMENTS' START_TIME = '1950-01-01' STOP_TIME = '2100-01-01' STEP_SIZE = '150 years' CENTER = '@0' OUT_UNITS = 'AU-D'