******************************************************************************* JPL/HORIZONS PANSTARRS (C/2017 K2) 2024-May-20 15:00:27 Rec #:90004410 (+COV) Soln.date: 2024-May-07_13:42:21 # obs: 2062 (2013-2024) IAU76/J2000 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs): EPOCH= 2459329.5 ! 2021-Apr-25.0000000 (TDB) RMSW= n.a. EC= 1.000535772980367 QR= 1.797685223434788 TP= 2459933.2797761173 OM= 88.24647445961963 W= 236.1871953433862 IN= 87.55139001918343 A= -3355.311464574771 MA= -.003061846220956608ADIST= 9.999999E99 PER= 9.999999E99 N= 5.071E-6 ANGMOM= .032622063 DAN= 8.114100000000001 DDN= 2.31011 L= 271.8963389 B= -56.1091662 MOID= 1.09173 TP= 2022-Dec-19.7797761173 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= n.a. M1= 8.7 M2= n.a. k1= 4.5 k2= n.a. PHCOF= n.a. Comet non-gravitational force model (AMRAT=m^2/kg;A1-A3=au/d^2;DT=days;R0=au): AMRAT= 0. DT= 0. A1= 3.416313648224E-8 A2= -7.056936621666E-9 A3= -9.07410800457E-9 Standard model: ALN= .1112620426 NK= 4.6142 NM= 2.15 NN= 5.093 R0= 2.808 COMET comments 1: soln ref.= JPL#129, data arc: 2013-05-12 to 2024-04-28 2: k1=4.5; ******************************************************************************* ******************************************************************************* Ephemeris / WWW_USER Mon May 20 15:00:28 2024 Pasadena, USA / Horizons ******************************************************************************* Target body name: PANSTARRS (C/2017 K2) {source: JPL#129} Center body name: Sun (10) {source: DE441} Center-site name: BODY CENTER ******************************************************************************* Start time : A.D. 2023-Nov-01 00:00:00.0000 TDB Stop time : A.D. 2024-Jan-15 00:00:00.0000 TDB Step-size : 7200 minutes ******************************************************************************* 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= 2459329.5 ! 2021-Apr-25.0000000 (TDB) RMSW= n.a. EC= 1.000535772980367 QR= 1.797685223434788 TP= 2459933.2797761173 OM= 88.24647445961963 W= 236.1871953433862 IN= 87.55139001918343 Equivalent ICRF heliocentric cartesian coordinates (au, au/d): X=-3.412677182689189E-01 Y=-5.202561610097790E+00 Z= 3.937343829986496E+00 VX= 3.954777737475936E-04 VY= 3.444495758565750E-03 VZ=-8.868550240825866E-03 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= n.a. M1= 8.7 M2= n.a. k1= 4.5 k2= n.a. PHCOF= n.a. Comet non-gravitational force model (AMRAT=m^2/kg;A1-A3=au/d^2;DT=days;R0=au): AMRAT= 0. DT= 0. A1= 3.416313648224E-8 A2= -7.056936621666E-9 A3= -9.07410800457E-9 Standard model: ALN= .1112620426 NK= 4.6142 NM= 2.15 NN= 5.093 R0= 2.808 ******************************************************************************* JDTDB EC QR IN OM W Tp N MA TA A AD PR ******************************************************************************* $$SOE 2460249.500000000 = A.D. 2023-Nov-01 00:00:00.0000 TDB EC= 1.000609129908813E+00 QR= 1.797209923174215E+00 IN= 8.756611458273096E+01 OM= 8.823472087929251E+01 W = 2.361990695442387E+02 Tp= 2459933.164221805055 N = 6.149938155916636E-06 MA= 1.945445472401519E-03 TA= 9.666966718386372E+01 A =-2.950454241652488E+03 AD= 9.999999999999998E+99 PR= 9.999999999999998E+99 2460254.500000000 = A.D. 2023-Nov-06 00:00:00.0000 TDB EC= 1.000602801963393E+00 QR= 1.797219849996375E+00 IN= 8.756632653340668E+01 OM= 8.823461349865133E+01 W = 2.361991496024431E+02 Tp= 2459933.162814180832 N = 6.054304378332585E-06 MA= 1.945473131026242E-03 TA= 9.722798644484290E+01 A =-2.981443258547752E+03 AD= 9.999999999999998E+99 PR= 9.999999999999998E+99 2460259.500000000 = A.D. 2023-Nov-11 00:00:00.0000 TDB EC= 1.000596385794897E+00 QR= 1.797230067531262E+00 IN= 8.756655682002946E+01 OM= 8.823449960495655E+01 W = 2.361992304714072E+02 Tp= 2459933.161347483750 N = 5.957849058961005E-06 MA= 1.944276433797262E-03 TA= 9.777421342893085E+01 A =-3.013536007915045E+03 AD= 9.999999999999998E+99 PR= 9.999999999999998E+99 2460264.500000000 = A.D. 2023-Nov-16 00:00:00.0000 TDB EC= 1.000589897940150E+00 QR= 1.797240592107455E+00 IN= 8.756680595986471E+01 OM= 8.823437929842251E+01 W = 2.361993130363940E+02 Tp= 2459933.159823589493 N = 5.860842694301748E-06 MA= 1.941932652244843E-03 TA= 9.830875037576058E+01 A =-3.046697521356210E+03 AD= 9.999999999999998E+99 PR= 9.999999999999998E+99 2460269.500000000 = A.D. 2023-Nov-21 00:00:00.0000 TDB EC= 1.000583353166584E+00 QR= 1.797251440595047E+00 IN= 8.756707420259488E+01 OM= 8.823425280778574E+01 W = 2.361993981393428E+02 Tp= 2459933.158244130202 N = 5.763524621755626E-06 MA= 1.938513991281211E-03 TA= 9.883198239852753E+01 A =-3.080897719505997E+03 AD= 9.999999999999998E+99 PR= 9.999999999999998E+99 2460274.500000000 = A.D. 2023-Nov-26 00:00:00.0000 TDB EC= 1.000576761587926E+00 QR= 1.797262628374274E+00 IN= 8.756736152050296E+01 OM= 8.823412048305718E+01 W = 2.361994864246745E+02 Tp= 2459933.156609894242 N = 5.666061073629468E-06 MA= 1.934072495417921E-03 TA= 9.934427848110840E+01 A =-3.116127471037214E+03 AD= 9.999999999999998E+99 PR= 9.999999999999998E+99 2460279.500000000 = A.D. 2023-Dec-01 00:00:00.0000 TDB EC= 1.000570124486412E+00 QR= 1.797274165842955E+00 IN= 8.756766766593599E+01 OM= 8.823398275839247E+01 W = 2.361995781013855E+02 Tp= 2459933.154919890687 N = 5.568485809628977E-06 MA= 1.928617663824025E-03 TA= 9.984599251587576E+01 A =-3.152424091013377E+03 AD= 9.999999999999998E+99 PR= 9.999999999999998E+99 2460284.500000000 = A.D. 2023-Dec-06 00:00:00.0000 TDB EC= 1.000563428708314E+00 QR= 1.797286052338282E+00 IN= 8.756799243715487E+01 OM= 8.823384002731602E+01 W = 2.361996725890197E+02 Tp= 2459933.153170061298 N = 5.470622224981424E-06 MA= 1.922085776539880E-03 TA= 1.003374644187412E+02 A =-3.189908547108632E+03 AD= 9.999999999999998E+99 PR= 9.999999999999998E+99 2460289.500000000 = A.D. 2023-Dec-11 00:00:00.0000 TDB EC= 1.000556643596976E+00 QR= 1.797298268348786E+00 IN= 8.756833643474228E+01 OM= 8.823369232150061E+01 W = 2.361997682129034E+02 Tp= 2459933.151352547109 N = 5.372045306569471E-06 MA= 1.914321079052347E-03 TA= 1.008190211624509E+02 A =-3.228813334262260E+03 AD= 9.999999999999998E+99 PR= 9.999999999999998E+99 2460294.500000000 = A.D. 2023-Dec-16 00:00:00.0000 TDB EC= 1.000549736483405E+00 QR= 1.797310777405377E+00 IN= 8.756870237509305E+01 OM= 8.823353879233660E+01 W = 2.361998628108171E+02 Tp= 2459933.149459051434 N = 5.272312527724368E-06 MA= 1.905152983942317E-03 TA= 1.012909768695049E+02 A =-3.269404217586228E+03 AD= 9.999999999999998E+99 PR= 9.999999999999998E+99 2460299.500000000 = A.D. 2023-Dec-21 00:00:00.0000 TDB EC= 1.000542725360800E+00 QR= 1.797323563778123E+00 IN= 8.756909527969498E+01 OM= 8.823337771166094E+01 W = 2.361999565719554E+02 Tp= 2459933.147492630407 N = 5.171718116364024E-06 MA= 1.894671899339335E-03 TA= 1.017536306214959E+02 A =-3.311663123921255E+03 AD= 9.999999999999998E+99 PR= 9.999999999999998E+99 2460304.500000000 = A.D. 2023-Dec-26 00:00:00.0000 TDB EC= 1.000535716189856E+00 QR= 1.797336688804547E+00 IN= 8.756951856896536E+01 OM= 8.823320811642584E+01 W = 2.362000547775872E+02 Tp= 2459933.145476249978 N = 5.071799441642677E-06 MA= 1.883435666206520E-03 TA= 1.022072642753065E+02 A =-3.355016560706504E+03 AD= 9.999999999999998E+99 PR= 9.999999999999998E+99 2460309.500000000 = A.D. 2023-Dec-31 00:00:00.0000 TDB EC= 1.000528827337688E+00 QR= 1.797350265013187E+00 IN= 8.756996996493123E+01 OM= 8.823303135271806E+01 W = 2.362001644167607E+02 Tp= 2459933.143435908947 N = 4.974229750506636E-06 MA= 1.872084017900165E-03 TA= 1.026521463755104E+02 A =-3.398746881865784E+03 AD= 9.999999999999998E+99 PR= 9.999999999999998E+99 2460314.500000000 = A.D. 2024-Jan-05 00:00:00.0000 TDB EC= 1.000522098327580E+00 QR= 1.797364369470184E+00 IN= 8.757044410787040E+01 OM= 8.823284987317837E+01 W = 2.362002887348123E+02 Tp= 2459933.141379851382 N = 4.879533847006488E-06 MA= 1.860852294862271E-03 TA= 1.030885381995955E+02 A =-3.442578293252595E+03 AD= 9.999999999999998E+99 PR= 9.999999999999998E+99 2460319.500000000 = A.D. 2024-Jan-10 00:00:00.0000 TDB EC= 1.000515504755520E+00 QR= 1.797379023683509E+00 IN= 8.757093682137274E+01 OM= 8.823266553646410E+01 W = 2.362004272803732E+02 Tp= 2459933.139301721938 N = 4.787332416126922E-06 MA= 1.849637095184035E-03 TA= 1.035166942866588E+02 A =-3.486639074493786E+03 AD= 9.999999999999998E+99 PR= 9.999999999999998E+99 2460324.500000000 = A.D. 2024-Jan-15 00:00:00.0000 TDB EC= 1.000509006285825E+00 QR= 1.797394223385665E+00 IN= 8.757144590571356E+01 OM= 8.823247936214003E+01 W = 2.362005783831461E+02 Tp= 2459933.137191328686 N = 4.697034821754461E-06 MA= 1.838244740269497E-03 TA= 1.039368604536320E+02 A =-3.531182764217688E+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/hrzn_batch.txt scripts https://ssd.jpl.nasa.gov/ftp/ssd/SCRIPTS Author : Jon.D.Giorgini@jpl.nasa.gov ******************************************************************************* !$$SOF CENTER = '@sun' COMMAND = '2017 K2' OUT_UNITS = 'AU-D' START_TIME = '2023-11-01' STEP_SIZE = '5 day' STOP_TIME = '2024-01-15' TABLE_TYPE = 'ELEMENTS'