******************************************************************************* JPL/HORIZONS McNaught (C/2006 P1) 2024-Apr-23 09:06:30 Rec #:90003642 (+COV) Soln.date: 2021-Apr-15_23:30:59 # obs: 331 (2006-2007) IAU76/J2000 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs): EPOCH= 2454065.5 ! 2006-Nov-26.0000000 (TDB) RMSW= n.a. EC= 1.000018815882278 QR= .1707364648528884 TP= 2454113.2988436329 OM= 267.4148026435385 W= 155.9749681149126 IN= 77.83700054890942 A= -9074.061068728695 MA= -5.4502812965308E-5 ADIST= 9.999999E99 PER= 9.999999E99 N= 1.14E-6 ANGMOM= .010052212 DAN= 3.94245 DDN= .17847 L= 82.04948520000001 B= 23.4529837 MOID= .40940601 TP= 2007-Jan-12.7988436329 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= n.a. M1= 5.4 M2= 12.9 k1= 20.75 k2= 5. PHCOF= .030 COMET comments 1: soln ref.= JPL#27, data arc: 2006-08-07 to 2007-07-11 2: k1=20.75, k2=5., phase coef.=0.03; ******************************************************************************* ******************************************************************************* Ephemeris / WWW_USER Tue Apr 23 09:06:30 2024 Pasadena, USA / Horizons ******************************************************************************* Target body name: McNaught (C/2006 P1) {source: JPL#27} 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. 2050-Jan-01 00:00:00.0000 TDB Step-size : 100 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= 2454065.5 ! 2006-Nov-26.0000000 (TDB) RMSW= n.a. EC= 1.000018815882278 QR= .1707364648528884 TP= 2454113.2988436329 OM= 267.4148026435385 W= 155.9749681149126 IN= 77.83700054890942 Equivalent ICRF heliocentric cartesian coordinates (au, au/d): X= 3.108169182050542E-02 Y=-1.293847674003737E+00 Z=-1.220881115605168E-01 VX= 1.178722771799021E-03 VY= 1.912334650954304E-02 VZ= 9.391595170035781E-03 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= n.a. M1= 5.4 M2= 12.9 k1= 20.75 k2= 5. PHCOF= .030 ******************************************************************************* JDTDB EC QR IN OM W Tp N MA TA A AD PR ******************************************************************************* $$SOE 2433282.500000000 = A.D. 1950-Jan-01 00:00:00.0000 TDB EC= 9.999948999651155E-01 QR= 1.700542334984887E-01 IN= 7.765336782518384E+01 OM= 2.674576435010650E+02 W = 1.559953968645183E+02 Tp= 2454112.809524307959 N = 1.619846281095678E-07 MA= 3.599966258100583E+02 TA= 1.851811906491428E+02 A = 3.334373927600805E+04 AD= 6.668730849778261E+04 PR= 2.222433104927049E+09 2469807.500000000 = A.D. 2050-Jan-01 00:00:00.0000 TDB EC= 9.999157817758176E-01 QR= 1.721375593703869E-01 IN= 7.799946917275150E+01 OM= 2.672608109657098E+02 W = 1.560452184394500E+02 Tp= 2454113.734860558994 N = 1.067310822538309E-05 MA= 1.675012537969725E-01 TA= 1.743051776972640E+02 A = 2.043946675948790E+03 AD= 4.087721214338210E+03 PR= 3.372963080650094E+07 $$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 = '2006 P1' TABLE_TYPE = 'ELEMENTS' START_TIME = '1950-01-01' STOP_TIME = '2050-01-01' STEP_SIZE = '100 years' CENTER = '@0' OUT_UNITS = 'AU-D'