******************************************************************************* JPL/HORIZONS PANSTARRS (C/2015 O1) 2024-Apr-28 03:54:00 Rec #:90004319 (+COV) Soln.date: 2021-Apr-15_23:33:13 # obs: 3677 (2015-2020) IAU76/J2000 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs): EPOCH= 2458161.5 ! 2018-Feb-12.0000000 (TDB) RMSW= n.a. EC= .9999942726886238 QR= 3.729638328146878 TP= 2458168.5294216713 OM= 299.8558487296183 W= 89.5938608233934 IN= 127.2110782162259 A= 651202.2977610121 MA= 359.9999999868159 ADIST= 1302400.865883696 PER= 525511335.88328 N= 2.E-9 ANGMOM= .046981749 DAN= 7.40675 DDN= 7.51251 L= 210.5274077 B= 52.7870262 MOID= 3.22224998 TP= 2018-Feb-19.0294216713 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= n.a. M1= 7.2 M2= 10. k1= 8.5 k2= 5. PHCOF= .030 Comet non-gravitational force model (AMRAT=m^2/kg;A1-A3=au/d^2;DT=days;R0=au): AMRAT= 0. DT= 0. A1= 8.216986656189E-8 A2= -3.691365480423E-8 A3= 6.356848478317E-9 Non-standard or simulated/proxy model: ALN= .04083733261 NK= 2.6 NM= 2. NN= 3. R0= 5. COMET comments 1: soln ref.= JPL#51, data arc: 2015-06-15 to 2020-03-20 2: k1=8.5, k2=5., phase coef.=0.03;Nongrav. accels. using CO driven g(r) ******************************************************************************* ******************************************************************************* Ephemeris / WWW_USER Sun Apr 28 03:54:00 2024 Pasadena, USA / Horizons ******************************************************************************* Target body name: PANSTARRS (C/2015 O1) {source: JPL#51} 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= 2458161.5 ! 2018-Feb-12.0000000 (TDB) RMSW= n.a. EC= .9999942726886238 QR= 3.729638328146878 TP= 2458168.5294216713 OM= 299.8558487296183 W= 89.5938608233934 IN= 127.2110782162259 Equivalent ICRF heliocentric cartesian coordinates (au, au/d): X=-1.898269301475889E+00 Y=-2.302461876680737E+00 Z= 2.238161154779026E+00 VX=-6.394637308501608E-03 VY= 9.879397787856781E-03 VZ= 4.490518044539001E-03 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= n.a. M1= 7.2 M2= 10. k1= 8.5 k2= 5. PHCOF= .030 Comet non-gravitational force model (AMRAT=m^2/kg;A1-A3=au/d^2;DT=days;R0=au): AMRAT= 0. DT= 0. A1= 8.216986656189E-8 A2= -3.691365480423E-8 A3= 6.356848478317E-9 Non-standard or simulated/proxy model: ALN= .04083733261 NK= 2.6 NM= 2. NN= 3. R0= 5. ******************************************************************************* JDTDB EC QR IN OM W Tp N MA TA A AD PR ******************************************************************************* $$SOE 2378496.500000000 = A.D. 1800-Jan-01 00:00:00.0000 TDB EC= 9.998775267414012E-01 QR= 3.721109100122276E+00 IN= 1.271765697082405E+02 OM= 2.998718906441927E+02 W = 8.969358094728102E+01 Tp= 2458167.546408222523 N = 1.862295354263817E-07 MA= 3.599851628980405E+02 TA= 1.956538158703597E+02 A = 3.038303334678513E+04 AD= 6.076234558447013E+04 PR= 1.933098308900155E+09 2524593.500000000 = A.D. 2200-Jan-01 00:00:00.0000 TDB EC= 9.994957301225682E-01 QR= 3.727489189693207E+00 IN= 1.271623775168177E+02 OM= 2.998605353744059E+02 W = 8.950672720260845E+01 Tp= 2458167.794531928375 N = 1.551905262836981E-06 MA= 1.030864019035741E-01 TA= 1.633835863772766E+02 A = 7.391853760282634E+03 AD= 1.477998003137557E+04 PR= 2.319729229746262E+08 $$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 = '2015 O1' TABLE_TYPE = 'ELEMENTS' START_TIME = '1800-01-01' STOP_TIME = '2200-01-01' STEP_SIZE = '400 years' CENTER = '@0' OUT_UNITS = 'AU-D'