******************************************************************************* JPL/HORIZONS PANSTARRS (C/2017 K2) 2024-May-18 20:56:23 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 Sat May 18 20:56:23 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. 2024-Sep-11 00:00:00.0000 TDB Stop time : A.D. 2024-Sep-20 00:00:00.0000 TDB Step-size : 1440 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 2460564.500000000 = A.D. 2024-Sep-11 00:00:00.0000 TDB EC= 9.999736790103486E-01 QR= 1.798655047732172E+00 IN= 8.761642808734818E+01 OM= 8.822370541041622E+01 W = 2.362045577313414E+02 Tp= 2459932.860599081032 N = 5.517414022164154E-08 MA= 3.485016087412506E-05 TA= 1.178725336853556E+02 A = 6.833538827993622E+04 AD= 1.366689779048247E+05 PR= 6.524795829238738E+09 2460565.500000000 = A.D. 2024-Sep-12 00:00:00.0000 TDB EC= 9.999700916806519E-01 QR= 1.798661615427918E+00 IN= 8.761667367004634E+01 OM= 8.822367999934326E+01 W = 2.362045140849579E+02 Tp= 2459932.858360977378 N = 6.682945012574839E-08 MA= 4.227909287247794E-05 TA= 1.179134931777566E+02 A = 6.013917380258883E+04 AD= 1.202765489435622E+05 PR= 5.386846657014424E+09 2460566.500000000 = A.D. 2024-Sep-13 00:00:00.0000 TDB EC= 9.999664938278890E-01 QR= 1.798668175960449E+00 IN= 8.761691916514522E+01 OM= 8.822365477445244E+01 W = 2.362044695520892E+02 Tp= 2459932.856112899259 N = 7.924369547251389E-08 MA= 5.021228324113752E-05 TA= 1.179543567368650E+02 A = 5.368169691208134E+04 AD= 1.073615951559867E+05 PR= 4.542948153205046E+09 2460567.500000000 = A.D. 2024-Sep-14 00:00:00.0000 TDB EC= 9.999628862484709E-01 QR= 1.798674729604845E+00 IN= 8.761716451923770E+01 OM= 8.822362974062105E+01 W = 2.362044241756041E+02 Tp= 2459932.853855215013 N = 9.237988304365915E-08 MA= 5.862853661103990E-05 TA= 1.179951246995823E+02 A = 4.846383497992691E+04 AD= 9.692587128512420E+04 PR= 3.896952324889418E+09 2460568.500000000 = A.D. 2024-Sep-15 00:00:00.0000 TDB EC= 9.999592696473758E-01 QR= 1.798681276710067E+00 IN= 8.761740966467498E+01 OM= 8.822360490405701E+01 W = 2.362043779954481E+02 Tp= 2459932.851588249207 N = 1.062062336891740E-07 MA= 6.750982376625105E-05 TA= 1.180357974036423E+02 A = 4.416070966289660E+04 AD= 8.831962064451649E+04 PR= 3.389631545108599E+09 2460569.500000000 = A.D. 2024-Sep-16 00:00:00.0000 TDB EC= 9.999556446149159E-01 QR= 1.798687817664584E+00 IN= 8.761765452301924E+01 OM= 8.822358027191116E+01 W = 2.362043310468734E+02 Tp= 2459932.849312260747 N = 1.206951767676786E-07 MA= 7.684066731346897E-05 TA= 1.180763751894100E+02 A = 4.055173490757339E+04 AD= 8.110167112732911E+04 PR= 2.982720682309864E+09 2460570.500000000 = A.D. 2024-Sep-17 00:00:00.0000 TDB EC= 9.999520116141927E-01 QR= 1.798694352863736E+00 IN= 8.761789900879256E+01 OM= 8.822355585187280E+01 W = 2.362042833592137E+02 Tp= 2459932.847027448006 N = 1.358226594312882E-07 MA= 8.660772251036113E-05 TA= 1.181168584011365E+02 A = 3.748186821901200E+04 AD= 7.496193774367115E+04 PR= 2.650515028253602E+09 2460571.500000000 = A.D. 2024-Sep-18 00:00:00.0000 TDB EC= 9.999483709787061E-01 QR= 1.798700882681552E+00 IN= 8.761814303313203E+01 OM= 8.822353165178792E+01 W = 2.362042349552269E+02 Tp= 2459932.844733942766 N = 1.515676408425238E-07 MA= 9.679947198320386E-05 TA= 1.181572473876440E+02 A = 3.483894983106561E+04 AD= 6.967610096124854E+04 PR= 2.375177168417063E+09 2460572.500000000 = A.D. 2024-Sep-19 00:00:00.0000 TDB EC= 9.999447229184081E-01 QR= 1.798707407448688E+00 IN= 8.761838650704340E+01 OM= 8.822350767933008E+01 W = 2.362041858509596E+02 Tp= 2459932.842431813944 N = 1.679116959310496E-07 MA= 1.074059871089480E-04 TA= 1.181975425024872E+02 A = 3.253984030350893E+04 AD= 6.507788189961041E+04 PR= 2.143984062598168E+09 2460573.500000000 = A.D. 2024-Sep-20 00:00:00.0000 TDB EC= 9.999410675319482E-01 QR= 1.798713927437065E+00 IN= 8.761862934406516E+01 OM= 8.822348394174048E+01 W = 2.362041360560349E+02 Tp= 2459932.840121079702 N = 1.848386857560564E-07 MA= 1.184187300574956E-04 TA= 1.182377441036880E+02 A = 3.052161205708316E+04 AD= 6.104142540023888E+04 PR= 1.947644231116830E+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 = '2017 K2' TABLE_TYPE = 'ELEMENTS' START_TIME = '2024-09-11' STOP_TIME = '2024-09-20' STEP_SIZE = '1 day' CENTER = '@sun' OUT_UNITS = 'AU-D'