******************************************************************************* JPL/HORIZONS 85D/Boethin 2024-Apr-23 06:13:08 Rec #:90000874 Soln.date: - # obs: 44 (1975-1986) IAU76/J2000 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs): EPOCH= 2446440.5 ! 1986-Jan-10.0000000 (TDB) RMSW= n.a. EC= .777728 QR= 1.114327 TP= 2446446.9254000001 OM= 26.48 W= 11.6756 IN= 5.7564 A= 5.013348509933775 MA= 359.4358268694743 ADIST= 8.91237001986755 PER= 11.225354024444 N= .08780358100000001 ANGMOM= .024211429 DAN= 1.12451 DDN= 8.310700000000001 L= 38.0983283 B= 1.1630453 TP= 1986-Jan-16.4254000001 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= n.a. M1= n.a. M2= n.a. k1= n.a. k2= n.a. PHCOF= n.a. COMET comments 1: soln ref.= SAO/1986 2: 2008 SAO Comet Catalog ******************************************************************************* ******************************************************************************* Ephemeris / WWW_USER Tue Apr 23 06:13:08 2024 Pasadena, USA / Horizons ******************************************************************************* Target body name: 85D/Boethin {source: SAO/198620} Center body name: Earth (399) {source: DE441} Center-site name: GEOCENTRIC ******************************************************************************* Start time : A.D. 2029-Jun-05 00:00:00.0000 UT Stop time : A.D. 2029-Jun-10 00:00:00.0000 UT Step-size : 180 minutes ******************************************************************************* Target pole/equ : undefined Target radii : undefined 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.240422.p240716 EOP coverage : DATA-BASED 1962-JAN-20 TO 2024-APR-22. PREDICTS-> 2024-JUL-15 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= 2446440.5 ! 1986-Jan-10.0000000 (TDB) RMSW= n.a. EC= .777728 QR= 1.114327 TP= 2446446.9254000001 OM= 26.48 W= 11.6756 IN= 5.7564 Equivalent ICRF heliocentric cartesian coordinates (au, au/d): X= 9.586971096701794E-01 Y= 5.243939774437769E-01 Z= 2.369722761442210E-01 VX=-1.211774940692113E-02 VY= 1.552361296549436E-02 VZ= 9.079906303674874E-03 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= n.a. M1= n.a. M2= n.a. k1= n.a. k2= n.a. PHCOF= n.a. ******************************************************************************* Date__(UT)__HR:MN r rdot ************************************************** $$SOE 2029-Jun-05 00:00 6.898687435274 -6.6329802 2029-Jun-05 03:00 6.898208542340 -6.6339359 2029-Jun-05 06:00 6.897729580516 -6.6348916 2029-Jun-05 09:00 6.897250549792 -6.6358475 2029-Jun-05 12:00 6.896771450161 -6.6368035 2029-Jun-05 15:00 6.896292281617 -6.6377595 2029-Jun-05 18:00 6.895813044150 -6.6387157 2029-Jun-05 21:00 6.895333737754 -6.6396720 2029-Jun-06 00:00 6.894854362420 -6.6406284 2029-Jun-06 03:00 6.894374918141 -6.6415849 2029-Jun-06 06:00 6.893895404909 -6.6425415 2029-Jun-06 09:00 6.893415822717 -6.6434982 2029-Jun-06 12:00 6.892936171556 -6.6444550 2029-Jun-06 15:00 6.892456451420 -6.6454119 2029-Jun-06 18:00 6.891976662299 -6.6463690 2029-Jun-06 21:00 6.891496804187 -6.6473261 2029-Jun-07 00:00 6.891016877076 -6.6482834 2029-Jun-07 03:00 6.890536880958 -6.6492407 2029-Jun-07 06:00 6.890056815825 -6.6501982 2029-Jun-07 09:00 6.889576681670 -6.6511557 2029-Jun-07 12:00 6.889096478484 -6.6521134 2029-Jun-07 15:00 6.888616206261 -6.6530712 2029-Jun-07 18:00 6.888135864992 -6.6540291 2029-Jun-07 21:00 6.887655454669 -6.6549870 2029-Jun-08 00:00 6.887174975285 -6.6559451 2029-Jun-08 03:00 6.886694426832 -6.6569033 2029-Jun-08 06:00 6.886213809302 -6.6578617 2029-Jun-08 09:00 6.885733122688 -6.6588201 2029-Jun-08 12:00 6.885252366981 -6.6597786 2029-Jun-08 15:00 6.884771542175 -6.6607372 2029-Jun-08 18:00 6.884290648260 -6.6616960 2029-Jun-08 21:00 6.883809685230 -6.6626548 2029-Jun-09 00:00 6.883328653076 -6.6636138 2029-Jun-09 03:00 6.882847551791 -6.6645728 2029-Jun-09 06:00 6.882366381368 -6.6655320 2029-Jun-09 09:00 6.881885141797 -6.6664913 2029-Jun-09 12:00 6.881403833071 -6.6674506 2029-Jun-09 15:00 6.880922455184 -6.6684101 2029-Jun-09 18:00 6.880441008126 -6.6693697 2029-Jun-09 21:00 6.879959491890 -6.6703294 2029-Jun-10 00:00 6.879477906468 -6.6712892 $$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 ******************************************************************************* !$$SOF COMMAND = '90000874' START_TIME = '2029-Jun-05' STOP_TIME = '2029-Jun-10' STEP_SIZE = '3 hours' QUANTITIES = '19'