API VERSION: 1.2 API SOURCE: NASA/JPL Horizons API ******************************************************************************* JPL/HORIZONS 39P/Oterma 2024-May-03 18:57:03 Rec #:90000471 (+COV) Soln.date: 2024-Jan-16_15:22:33 # obs: 287 (1942-2023) IAU76/J2000 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs): EPOCH= 2456994.5 ! 2014-Dec-03.0000000 (TDB) RMSW= n.a. EC= .2284123245383775 QR= 5.712314418622992 TP= 2460043.7839299259 OM= 303.6355887080981 W= 89.7043305431787 IN= 1.478237003763243 A= 7.403325118179799 MA= 210.8024450350957 ADIST= 9.094335817736606 PER= 20.144126272711 N= .048928718 ANGMOM= .045567959 DAN= 7.00882 DDN= 7.02536 L= 33.3398208 B= 1.4782173 MOID= 4.71851015 TP= 2023-Apr-09.2839299259 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= n.a. M1= 6.8 M2= 13.6 k1= 14.75 k2= 5. PHCOF= .030 COMET comments 1: soln ref.= JPL#24, data arc: 1942-02-17 to 2023-11-10 2: k1=14.75, k2=5., phase coef.=0.03; ******************************************************************************* ******************************************************************************* Ephemeris / API_USER Fri May 3 18:57:03 2024 Pasadena, USA / Horizons ******************************************************************************* Target body name: 39P/Oterma {source: JPL#24} Center body name: Jupiter (599) {source: jup365_merged} Center-site name: BODYCENTRIC ******************************************************************************* Start time : A.D. 2023-Jul-11 00:00:00.0000 UT Stop time : A.D. 2023-Jul-14 00:00:00.0000 UT Step-size : 60 minutes ******************************************************************************* Target pole/equ : undefined Target radii : undefined Center geodetic : 0.0, 0.0, -71492.0 {W-lon(deg),Lat(deg),Alt(km)} Center cylindric: 0.0, 0.0, 0.0 {W-lon(deg),Dxy(km),Dz(km)} Center pole/equ : IAU_JUPITER {West-longitude positive} Center radii : 71492.0, 71492.0, 66854.0 km {Equator_a, b, pole_c} Target primary : Sun Vis. interferer : IO (R_eq= 1829.400) km {source: jup365_merged} Rel. light bend : Sun {source: jup365_merged} 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.240503.p240727 EOP coverage : DATA-BASED 1962-JAN-20 TO 2024-MAY-03. PREDICTS-> 2024-JUL-26 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 n.a. , 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= 2456994.5 ! 2014-Dec-03.0000000 (TDB) RMSW= n.a. EC= .2284123245383775 QR= 5.712314418622992 TP= 2460043.7839299259 OM= 303.6355887080981 W= 89.7043305431787 IN= 1.478237003763243 Equivalent ICRF heliocentric cartesian coordinates (au, au/d): X=-5.317289091597196E+00 Y=-6.496615807643809E+00 Z=-3.052929370218818E+00 VX= 4.401069487651736E-03 VY=-2.434098768573271E-03 VZ=-9.931961747958078E-04 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= n.a. M1= 6.8 M2= 13.6 k1= 14.75 k2= 5. PHCOF= .030 ******************************************************************************** Date__(UT)__HR:MN r rdot delta deldot ******************************************************************************** $$SOE 2023-Jul-11 00:00 5.707170854193 -0.0063955 1.17063955897637 -1.5400225 2023-Jul-11 01:00 5.707170701808 -0.0062691 1.17060250048934 -1.5399998 2023-Jul-11 02:00 5.707170552463 -0.0061428 1.17056544271694 -1.5399628 2023-Jul-11 03:00 5.707170406159 -0.0060165 1.17052838601657 -1.5399105 2023-Jul-11 04:00 5.707170262896 -0.0058901 1.17049133077074 -1.5398418 2023-Jul-11 05:00 5.707170122672 -0.0057638 1.17045427737815 -1.5397564 2023-Jul-11 06:00 5.707169985489 -0.0056375 1.17041722624435 -1.5396541 2023-Jul-11 07:00 5.707169851346 -0.0055111 1.17038017777212 -1.5395353 2023-Jul-11 08:00 5.707169720243 -0.0053848 1.17034313235197 -1.5394006 2023-Jul-11 09:00 5.707169592179 -0.0052585 1.17030609035285 -1.5392512 2023-Jul-11 10:00 5.707169467156 -0.0051321 1.17026905211348 -1.5390884 2023-Jul-11 11:00 5.707169345173 -0.0050058 1.17023201793444 -1.5389140 2023-Jul-11 12:00 5.707169226230 -0.0048795 1.17019498807139 -1.5387300 2023-Jul-11 13:00 5.707169110326 -0.0047532 1.17015796272945 -1.5385386 2023-Jul-11 14:00 5.707168997462 -0.0046269 1.17012094205905 -1.5383422 2023-Jul-11 15:00 5.707168887638 -0.0045006 1.17008392615310 -1.5381430 2023-Jul-11 16:00 5.707168780854 -0.0043742 1.17004691504537 -1.5379438 2023-Jul-11 17:00 5.707168677110 -0.0042479 1.17000990870950 -1.5377469 2023-Jul-11 18:00 5.707168576404 -0.0041216 1.16997290705790 -1.5375549 2023-Jul-11 19:00 5.707168478739 -0.0039953 1.16993590994668 -1.5373699 2023-Jul-11 20:00 5.707168384113 -0.0038690 1.16989891717994 -1.5371941 2023-Jul-11 21:00 5.707168292526 -0.0037427 1.16986192851162 -1.5370295 2023-Jul-11 22:00 5.707168203979 -0.0036164 1.16982494365362 -1.5368777 2023-Jul-11 23:00 5.707168118471 -0.0034901 1.16978796228105 -1.5367400 2023-Jul-12 00:00 5.707168036003 -0.0033638 1.16975098403898 -1.5366177 2023-Jul-12 01:00 5.707167956573 -0.0032375 1.16971400855023 -1.5365113 2023-Jul-12 02:00 5.707167880183 -0.0031112 1.16967703542369 -1.5364214 2023-Jul-12 03:00 5.707167806832 -0.0029849 1.16964006426291 -1.5363479 2023-Jul-12 04:00 5.707167736520 -0.0028586 1.16960309467482 -1.5362906 2023-Jul-12 05:00 5.707167669247 -0.0027324 1.16956612627828 -1.5362487 2023-Jul-12 06:00 5.707167605014 -0.0026061 1.16952915871237 -1.5362213 2023-Jul-12 07:00 5.707167543819 -0.0024798 1.16949219164437 -1.5362071 2023-Jul-12 08:00 5.707167485663 -0.0023535 1.16945522477716 -1.5362044 2023-Jul-12 09:00 5.707167430545 -0.0022272 1.16941825785610 -1.5362112 2023-Jul-12 10:00 5.707167378467 -0.0021010 1.16938129067514 -1.5362256 2023-Jul-12 11:00 5.707167329428 -0.0019747 1.16934432308200 -1.5362451 2023-Jul-12 12:00 5.707167283427 -0.0018484 1.16930735498248 -1.5362672 2023-Jul-12 13:00 5.707167240464 -0.0017222 1.16927038634350 -1.5362895 2023-Jul-12 14:00 5.707167200541 -0.0015959 1.16923341719501 -1.5363091 2023-Jul-12 15:00 5.707167163656 -0.0014696 1.16919644763046 -1.5363236 2023-Jul-12 16:00 5.707167129809 -0.0013434 1.16915947780598 -1.5363303 2023-Jul-12 17:00 5.707167099001 -0.0012171 1.16912250793808 -1.5363268 2023-Jul-12 18:00 5.707167071231 -0.0010908 1.16908553829990 -1.5363109 2023-Jul-12 19:00 5.707167046500 -0.0009646 1.16904856921617 -1.5362804 2023-Jul-12 20:00 5.707167024807 -0.0008383 1.16901160105691 -1.5362338 2023-Jul-12 21:00 5.707167006152 -0.0007121 1.16897463422991 -1.5361695 2023-Jul-12 22:00 5.707166990535 -0.0005858 1.16893766917242 -1.5360866 2023-Jul-12 23:00 5.707166977957 -0.0004596 1.16890070634190 -1.5359843 2023-Jul-13 00:00 5.707166968417 -0.0003333 1.16886374620646 -1.5358626 2023-Jul-13 01:00 5.707166961914 -0.0002071 1.16882678923486 -1.5357215 2023-Jul-13 02:00 5.707166958450 -0.0000808 1.16878983588655 -1.5355616 2023-Jul-13 03:00 5.707166958024 0.0000454 1.16875288660196 -1.5353839 2023-Jul-13 04:00 5.707166960636 0.0001716 1.16871594179318 -1.5351898 2023-Jul-13 05:00 5.707166966285 0.0002979 1.16867900183541 -1.5349810 2023-Jul-13 06:00 5.707166974972 0.0004241 1.16864206705920 -1.5347595 2023-Jul-13 07:00 5.707166986697 0.0005503 1.16860513774379 -1.5345276 2023-Jul-13 08:00 5.707167001460 0.0006766 1.16856821411168 -1.5342876 2023-Jul-13 09:00 5.707167019261 0.0008028 1.16853129632441 -1.5340422 2023-Jul-13 10:00 5.707167040099 0.0009290 1.16849438447984 -1.5337941 2023-Jul-13 11:00 5.707167063974 0.0010553 1.16845747861069 -1.5335460 2023-Jul-13 12:00 5.707167090887 0.0011815 1.16842057868462 -1.5333006 2023-Jul-13 13:00 5.707167120838 0.0013077 1.16838368460565 -1.5330605 2023-Jul-13 14:00 5.707167153826 0.0014339 1.16834679621687 -1.5328281 2023-Jul-13 15:00 5.707167189851 0.0015601 1.16830991330440 -1.5326057 2023-Jul-13 16:00 5.707167228914 0.0016863 1.16827303560240 -1.5323954 2023-Jul-13 17:00 5.707167271014 0.0018126 1.16823616279901 -1.5321988 2023-Jul-13 18:00 5.707167316151 0.0019388 1.16819929454304 -1.5320176 2023-Jul-13 19:00 5.707167364325 0.0020650 1.16816243045125 -1.5318529 2023-Jul-13 20:00 5.707167415536 0.0021912 1.16812557011594 -1.5317055 2023-Jul-13 21:00 5.707167469785 0.0023174 1.16808871311304 -1.5315760 2023-Jul-13 22:00 5.707167527070 0.0024436 1.16805185901042 -1.5314645 2023-Jul-13 23:00 5.707167587393 0.0025698 1.16801500737700 -1.5313707 2023-Jul-14 00:00 5.707167650752 0.0026960 1.16797815779313 -1.5312940 $$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 'delta deldot' = Apparent range ("delta", light-time aberrated) and range-rate ("delta-dot") of the target center relative to the observer. A positive "deldot" means the target center is moving away from the observer, negative indicates movement toward the observer. 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 ********************************************************************************