API VERSION: 1.2 API SOURCE: NASA/JPL Horizons API ******************************************************************************* JPL/HORIZONS 68P/Klemola 2024-May-03 03:01:54 Rec #:90000706 (+COV) Soln.date: 2023-Apr-25_08:40:31 # obs: 1680 (2008-2021) IAU76/J2000 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs): EPOCH= 2457453.5 ! 2016-Mar-06.0000000 (TDB) RMSW= n.a. EC= .6403445374549595 QR= 1.762060137215003 TP= 2458799.3246570965 OM= 175.2997106152507 W= 153.8357829554133 IN= 11.18434035868971 A= 4.899300360256132 MA= 237.6816943722349 ADIST= 8.03654058329726 PER= 10.84449419107 N= .090887253 ANGMOM= .02924552 DAN= 6.7966 DDN= 1.83548 L= 329.5677314 B= 4.9064175 MOID= .75751102 TP= 2019-Nov-11.8246570965 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= 2.2 M1= 11.2 M2= 14.1 k1= 11.75 k2= 5. PHCOF= .030 COMET comments 1: soln ref.= JPL#K192/3, data arc: 2008-04-13 to 2021-01-11 2: k1=11.75, k2=5., phase coef.=0.03; ******************************************************************************* ******************************************************************************* Ephemeris / API_USER Fri May 3 03:01:54 2024 Pasadena, USA / Horizons ******************************************************************************* Target body name: 68P/Klemola {source: JPL#K192/3} Center body name: Earth (399) {source: DE441} Center-site name: GEOCENTRIC ******************************************************************************* Start time : A.D. 2030-Nov-01 00:00:00.0000 UT Stop time : A.D. 2030-Nov-07 00:00:00.0000 UT Step-size : 180 minutes ******************************************************************************* Target pole/equ : undefined Target radii : 2.2 km Center geodetic : 0.0, 0.0, -6378.137 {E-lon(deg),Lat(deg),Alt(km)} Center cylindric: 0.0, 0.0, 0.0 {E-lon(deg),Dxy(km),Dz(km)} Center pole/equ : ITRF93 {East-longitude positive} Center radii : 6378.137, 6378.137, 6356.752 km {Equator_a, b, pole_c} Target primary : Sun Vis. interferer : MOON (R_eq= 1737.400) km {source: DE441} Rel. light bend : Sun {source: DE441} Rel. lght bnd GM: 1.3271E+11 km^3/s^2 Small-body perts: Yes {source: SB441-N16} Atmos refraction: NO (AIRLESS) RA format : HMS Time format : CAL Calendar mode : Mixed Julian/Gregorian EOP file : eop.240502.p240726 EOP coverage : DATA-BASED 1962-JAN-20 TO 2024-MAY-02. PREDICTS-> 2024-JUL-25 Units conversion: 1 au= 149597870.700 km, c= 299792.458 km/s, 1 day= 86400.0 s Table cut-offs 1: Elevation (-90.0deg=NO ),Airmass (>38.000=NO), Daylight (NO ) Table cut-offs 2: Solar elongation ( 0.0,180.0=NO ),Local Hour Angle( 0.0=NO ) Table cut-offs 3: RA/DEC angular rate ( 0.0=NO ) ******************************************************************************* Initial IAU76/J2000 heliocentric ecliptic osculating elements (au, days, deg.): EPOCH= 2457453.5 ! 2016-Mar-06.0000000 (TDB) RMSW= n.a. EC= .6403445374549595 QR= 1.762060137215003 TP= 2458799.3246570965 OM= 175.2997106152507 W= 153.8357829554133 IN= 11.18434035868971 Equivalent ICRF heliocentric cartesian coordinates (au, au/d): X=-7.230527924988967E+00 Y= 1.663399282458717E+00 Z= 4.800600056470526E-01 VX= 9.641879340680267E-04 VY=-4.173324079420311E-03 VZ=-9.249790491130600E-04 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= 2.2 M1= 11.2 M2= 14.1 k1= 11.75 k2= 5. PHCOF= .030 ******************************************************************************* Date__(UT)__HR:MN r rdot ************************************************** $$SOE 2030-Nov-01 00:00 1.920737701728 -0.2967915 2030-Nov-01 03:00 1.920716673738 -0.2857822 2030-Nov-01 06:00 1.920696440527 -0.2747724 2030-Nov-01 09:00 1.920677002136 -0.2637620 2030-Nov-01 12:00 1.920658358600 -0.2527512 2030-Nov-01 15:00 1.920640509954 -0.2417398 2030-Nov-01 18:00 1.920623456233 -0.2307280 2030-Nov-01 21:00 1.920607197468 -0.2197158 2030-Nov-02 00:00 1.920591733691 -0.2087032 2030-Nov-02 03:00 1.920577064930 -0.1976902 2030-Nov-02 06:00 1.920563191213 -0.1866768 2030-Nov-02 09:00 1.920550112566 -0.1756630 2030-Nov-02 12:00 1.920537829014 -0.1646489 2030-Nov-02 15:00 1.920526340581 -0.1536345 2030-Nov-02 18:00 1.920515647287 -0.1426198 2030-Nov-02 21:00 1.920505749154 -0.1316049 2030-Nov-03 00:00 1.920496646199 -0.1205896 2030-Nov-03 03:00 1.920488338440 -0.1095742 2030-Nov-03 06:00 1.920480825892 -0.0985586 2030-Nov-03 09:00 1.920474108570 -0.0875427 2030-Nov-03 12:00 1.920468186486 -0.0765267 2030-Nov-03 15:00 1.920463059652 -0.0655106 2030-Nov-03 18:00 1.920458728076 -0.0544943 2030-Nov-03 21:00 1.920455191768 -0.0434780 2030-Nov-04 00:00 1.920452450734 -0.0324615 2030-Nov-04 03:00 1.920450504978 -0.0214450 2030-Nov-04 06:00 1.920449354505 -0.0104285 2030-Nov-04 09:00 1.920448999316 0.0005881 2030-Nov-04 12:00 1.920449439412 0.0116046 2030-Nov-04 15:00 1.920450674793 0.0226212 2030-Nov-04 18:00 1.920452705455 0.0336377 2030-Nov-04 21:00 1.920455531396 0.0446541 2030-Nov-05 00:00 1.920459152608 0.0556705 2030-Nov-05 03:00 1.920463569086 0.0666867 2030-Nov-05 06:00 1.920468780821 0.0777028 2030-Nov-05 09:00 1.920474787803 0.0887188 2030-Nov-05 12:00 1.920481590021 0.0997346 2030-Nov-05 15:00 1.920489187461 0.1107502 2030-Nov-05 18:00 1.920497580109 0.1217656 2030-Nov-05 21:00 1.920506767950 0.1327808 2030-Nov-06 00:00 1.920516750965 0.1437957 2030-Nov-06 03:00 1.920527529135 0.1548103 2030-Nov-06 06:00 1.920539102441 0.1658246 2030-Nov-06 09:00 1.920551470860 0.1768387 2030-Nov-06 12:00 1.920564634368 0.1878524 2030-Nov-06 15:00 1.920578592941 0.1988657 2030-Nov-06 18:00 1.920593346552 0.2098787 2030-Nov-06 21:00 1.920608895173 0.2208912 2030-Nov-07 00:00 1.920625238774 0.2319034 $$EOE ******************************************************************************* Column meaning: TIME Times PRIOR to 1962 are UT1, a mean-solar time closely related to the prior but now-deprecated GMT. Times AFTER 1962 are in UTC, the current civil or "wall-clock" time-scale. UTC is kept within 0.9 seconds of UT1 using integer leap-seconds for 1972 and later years. Conversion from the internal Barycentric Dynamical Time (TDB) of solar system dynamics to the non-uniform civil UT time-scale requested for output has not been determined for UTC times after the next July or January 1st. Therefore, the last known leap-second is used as a constant over future intervals. Time tags refer to the UT time-scale conversion from TDB on Earth regardless of observer location within the solar system, although clock rates may differ due to the local gravity field and no analog to "UT" may be defined for that location. Any 'b' symbol in the 1st-column denotes a B.C. date. First-column blank (" ") denotes an A.D. date. 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. NOTE: "n.a." in output means quantity "not available" at the print-time. 'r rdot' = The Sun's apparent range ("r", light-time aberrated) and range-rate ("rdot") relative to the target center, as seen by the observer. A positive "rdot" means the target center was moving away from the Sun, negative means moving toward the Sun. Units: AU and KM/S 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 *******************************************************************************