******************************************************************************* JPL/HORIZONS PANSTARRS (C/2017 K2) 2024-May-01 15:10:21 Rec #:90004410 (+COV) Soln.date: 2024-Apr-29_13:12:19 # obs: 2057 (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= 1.00053576687498 QR= 1.797685199158618 TP= 2459933.2797751967 OM= 88.24647446221712 W= 236.1871960014894 IN= 87.55139003479172 A= -3355.349655064081 MA= -.003061793941673874ADIST= 9.999999E99 PER= 9.999999E99 N= 5.071E-6 ANGMOM= .032622063 DAN= 8.114089999999999 DDN= 2.31011 L= 271.896339 B= -56.1091669 MOID= 1.09173 TP= 2022-Dec-19.7797751967 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= 3.417879343033E-8 A2= -7.062798142433E-9 A3= -9.073202013969E-9 Standard model: ALN= .1112620426 NK= 4.6142 NM= 2.15 NN= 5.093 R0= 2.808 COMET comments 1: soln ref.= JPL#128, data arc: 2013-05-12 to 2024-04-28 2: k1=4.5; ******************************************************************************* ******************************************************************************* Ephemeris / WWW_USER Wed May 1 15:10:21 2024 Pasadena, USA / Horizons ******************************************************************************* Target body name: PANSTARRS (C/2017 K2) {source: JPL#128} 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= 1.00053576687498 QR= 1.797685199158618 TP= 2459933.2797751967 OM= 88.24647446221712 W= 236.1871960014894 IN= 87.55139003479172 Equivalent ICRF heliocentric cartesian coordinates (au, au/d): X=-3.412677155131418E-01 Y=-5.202561594480747E+00 Z= 3.937343816908020E+00 VX= 3.954777698729885E-04 VY= 3.444495752771114E-03 VZ=-8.868550202650882E-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= 3.417879343033E-8 A2= -7.062798142433E-9 A3= -9.073202013969E-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= 1.000609087223612E+00 QR= 1.797209892858501E+00 IN= 8.756611455414480E+01 OM= 8.823472081575079E+01 W = 2.361990676399699E+02 Tp= 2459933.164217346348 N = 6.149291881067694E-06 MA= 1.945241059963864E-03 TA= 9.666966900366866E+01 A =-2.950660961494678E+03 AD= 9.999999999999998E+99 PR= 9.999999999999998E+99 2460254.500000000 = A.D. 2023-Nov-06 00:00:00.0000 TDB EC= 1.000602759278361E+00 QR= 1.797219819680581E+00 IN= 8.756632650482656E+01 OM= 8.823461343510613E+01 W = 2.361991476981674E+02 Tp= 2459933.162809723523 N = 6.053661475543457E-06 MA= 1.945266569434913E-03 TA= 9.722798826314916E+01 A =-2.981654342288141E+03 AD= 9.999999999999998E+99 PR= 9.999999999999998E+99 2460259.500000000 = A.D. 2023-Nov-11 00:00:00.0000 TDB EC= 1.000596343110032E+00 QR= 1.797230037215399E+00 IN= 8.756655679145629E+01 OM= 8.823449954140749E+01 W = 2.361992285671249E+02 Tp= 2459933.161343028303 N = 5.957209593264044E-06 MA= 1.944067777963342E-03 TA= 9.777421524600148E+01 A =-3.013751659040414E+03 AD= 9.999999999999998E+99 PR= 9.999999999999998E+99 2460264.500000000 = A.D. 2023-Nov-16 00:00:00.0000 TDB EC= 1.000589855255451E+00 QR= 1.797240561791539E+00 IN= 8.756680593129876E+01 OM= 8.823437923486949E+01 W = 2.361993111321054E+02 Tp= 2459933.159819131251 N = 5.860206722927556E-06 MA= 1.941721955503849E-03 TA= 9.830875219184566E+01 A =-3.046917943314746E+03 AD= 9.999999999999998E+99 PR= 9.999999999999998E+99 2460269.500000000 = A.D. 2023-Nov-21 00:00:00.0000 TDB EC= 1.000583310482052E+00 QR= 1.797251410279094E+00 IN= 8.756707417403676E+01 OM= 8.823425274422851E+01 W = 2.361993962350485E+02 Tp= 2459933.158239672892 N = 5.762892194887506E-06 MA= 1.938301305403428E-03 TA= 9.883198421386520E+01 A =-3.081123116383604E+03 AD= 9.999999999999998E+99 PR= 9.999999999999998E+99 2460274.500000000 = A.D. 2023-Nov-26 00:00:00.0000 TDB EC= 1.000576718903556E+00 QR= 1.797262598058296E+00 IN= 8.756736149195262E+01 OM= 8.823412041949584E+01 W = 2.361994845203747E+02 Tp= 2459933.156605438329 N = 5.665432236707511E-06 MA= 1.933857871336753E-03 TA= 9.934428029592559E+01 A =-3.116358050650244E+03 AD= 9.999999999999998E+99 PR= 9.999999999999998E+99 2460279.500000000 = A.D. 2023-Dec-01 00:00:00.0000 TDB EC= 1.000570081802233E+00 QR= 1.797274135526974E+00 IN= 8.756766763739540E+01 OM= 8.823398269482614E+01 W = 2.361995761970818E+02 Tp= 2459933.154915432446 N = 5.567860608663377E-06 MA= 1.928401153366609E-03 TA= 9.984599433038720E+01 A =-3.152660071741764E+03 AD= 9.999999999999998E+99 PR= 9.999999999999998E+99 2460284.500000000 = A.D. 2023-Dec-06 00:00:00.0000 TDB EC= 1.000563386024338E+00 QR= 1.797286022022340E+00 IN= 8.756799240862179E+01 OM= 8.823383996374579E+01 W = 2.361996706847137E+02 Tp= 2459933.153165605385 N = 5.470000713777880E-06 MA= 1.921867434923030E-03 TA= 1.003374662331514E+02 A =-3.190150171252419E+03 AD= 9.999999999999998E+99 PR= 9.999999999999998E+99 2460289.500000000 = A.D. 2023-Dec-11 00:00:00.0000 TDB EC= 1.000556600913283E+00 QR= 1.797298238032938E+00 IN= 8.756833640621849E+01 OM= 8.823369225792572E+01 W = 2.361997663085995E+02 Tp= 2459933.151348090731 N = 5.371427557876688E-06 MA= 1.914100969077311E-03 TA= 1.008190229769522E+02 A =-3.229060885708012E+03 AD= 9.999999999999998E+99 PR= 9.999999999999998E+99 2460294.500000000 = A.D. 2023-Dec-16 00:00:00.0000 TDB EC= 1.000549693799888E+00 QR= 1.797310747089542E+00 IN= 8.756870234657981E+01 OM= 8.823353872875663E+01 W = 2.361998609065090E+02 Tp= 2459933.149454591796 N = 5.271698631077945E-06 MA= 1.904931175568574E-03 TA= 1.012909786842902E+02 A =-3.269658030442763E+03 AD= 9.999999999999998E+99 PR= 9.999999999999998E+99 2460299.500000000 = A.D. 2023-Dec-21 00:00:00.0000 TDB EC= 1.000542682677472E+00 QR= 1.797323533462318E+00 IN= 8.756909525119252E+01 OM= 8.823337764807580E+01 W = 2.361999546676440E+02 Tp= 2459933.147488171235 N = 5.171108154641154E-06 MA= 1.894448461390907E-03 TA= 1.017536324367428E+02 A =-3.311923538513871E+03 AD= 9.999999999999998E+99 PR= 9.999999999999998E+99 2460304.500000000 = A.D. 2023-Dec-26 00:00:00.0000 TDB EC= 1.000535673506693E+00 QR= 1.797336658488760E+00 IN= 8.756951854047512E+01 OM= 8.823320805283507E+01 W = 2.362000528732714E+02 Tp= 2459933.145471794065 N = 5.071193438936335E-06 MA= 1.883210646957073E-03 TA= 1.022072660911856E+02 A =-3.355283836204078E+03 AD= 9.999999999999998E+99 PR= 9.999999999999998E+99 2460309.500000000 = A.D. 2023-Dec-31 00:00:00.0000 TDB EC= 1.000528784654700E+00 QR= 1.797350234697450E+00 IN= 8.756996993645367E+01 OM= 8.823303128912151E+01 W = 2.362001625124426E+02 Tp= 2459933.143431452569 N = 4.973627664549982E-06 MA= 1.871857441061926E-03 TA= 1.026521481921815E+02 A =-3.399021168110650E+03 AD= 9.999999999999998E+99 PR= 9.999999999999998E+99 2460314.500000000 = A.D. 2024-Jan-05 00:00:00.0000 TDB EC= 1.000522055644757E+00 QR= 1.797364339154517E+00 IN= 8.757044407940627E+01 OM= 8.823284980957584E+01 W = 2.362002868304930E+02 Tp= 2459933.141375392210 N = 4.878935611827506E-06 MA= 1.860624174476593E-03 TA= 1.030885400172116E+02 A =-3.442859697438567E+03 AD= 9.999999999999998E+99 PR= 9.999999999999998E+99 2460319.500000000 = A.D. 2024-Jan-10 00:00:00.0000 TDB EC= 1.000515462072851E+00 QR= 1.797378993367932E+00 IN= 8.757093679292294E+01 OM= 8.823266547285536E+01 W = 2.362004253760537E+02 Tp= 2459933.139297263231 N = 4.786737978521928E-06 MA= 1.849407449198788E-03 TA= 1.035166961053658E+02 A =-3.486927725692914E+03 AD= 9.999999999999998E+99 PR= 9.999999999999998E+99 2460324.500000000 = A.D. 2024-Jan-15 00:00:00.0000 TDB EC= 1.000508963603301E+00 QR= 1.797394193070195E+00 IN= 8.757144587727888E+01 OM= 8.823247929852492E+01 W = 2.362005764788272E+02 Tp= 2459933.137186871376 N = 4.696444150903899E-06 MA= 1.838013594599045E-03 TA= 1.039368622735688E+02 A =-3.531478835449620E+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 COMMAND = '2017 K2' TABLE_TYPE = 'ELEMENTS' START_TIME = '2023-11-01' STOP_TIME = '2024-01-15' STEP_SIZE = '5 day' CENTER = '@sun' OUT_UNITS = 'AU-D'