******************************************************************************* JPL/HORIZONS 36P/Whipple 2024-May-23 16:48:48 Rec #:90000453 Soln.date: - # obs: 205 (1985-2004) IAU76/J2000 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs): EPOCH= 2449720.5 ! 1995-Jan-03.0000000 (TDB) RMSW= n.a. EC= .258713 QR= 3.093879 TP= 2449708.9262999999 OM= 182.4958 W= 201.875 IN= 9.927099999999999 A= 4.173658785328759 MA= 1.337829855829177 ADIST= 5.253438570657519 PER= 8.526751639007699 N= .115592235 ANGMOM= .033946614 DAN= 5.12466 DDN= 3.14035 L= 24.0735817 B= -3.6827255 TP= 1994-Dec-22.4262999999 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= 2.28 M1= 10.5 M2= 14.5 k1= 13.25 k2= 5. PHCOF= .030 COMET comments 1: soln ref.= SAO/1994 2: k1=13.25, k2=5., phase coef.=0.03;2008 SAO Comet Catalog ******************************************************************************* ******************************************************************************* Ephemeris / WWW_USER Thu May 23 16:48:48 2024 Pasadena, USA / Horizons ******************************************************************************* Target body name: 36P/Whipple {source: SAO/199420} Center body name: Earth (399) {source: DE441} Center-site name: GEOCENTRIC ******************************************************************************* Start time : A.D. 2028-Nov-02 00:00:00.0000 UT Stop time : A.D. 2028-Nov-07 00:00:00.0000 UT Step-size : 120 minutes ******************************************************************************* Target pole/equ : undefined Target radii : 2.28 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.240523.p240816 EOP coverage : DATA-BASED 1962-JAN-20 TO 2024-MAY-23. PREDICTS-> 2024-AUG-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= 2449720.5 ! 1995-Jan-03.0000000 (TDB) RMSW= n.a. EC= .258713 QR= 3.093879 TP= 2449708.9262999999 OM= 182.4958 W= 201.875 IN= 9.927099999999999 Equivalent ICRF heliocentric cartesian coordinates (au, au/d): X= 2.764749305320250E+00 Y= 1.346281228381575E+00 Z= 3.450935556014312E-01 VX=-4.843769303075061E-03 VY= 9.579058593013385E-03 VZ= 2.266115978737149E-03 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= 2.28 M1= 10.5 M2= 14.5 k1= 13.25 k2= 5. PHCOF= .030 ******************************************************************************* Date__(UT)__HR:MN r rdot ************************************************** $$SOE 2028-Nov-02 00:00 3.036645200489 -0.0434254 2028-Nov-02 02:00 3.036643140356 -0.0421864 2028-Nov-02 04:00 3.036641139855 -0.0409474 2028-Nov-02 06:00 3.036639198985 -0.0397083 2028-Nov-02 08:00 3.036637317747 -0.0384693 2028-Nov-02 10:00 3.036635496142 -0.0372302 2028-Nov-02 12:00 3.036633734169 -0.0359912 2028-Nov-02 14:00 3.036632031829 -0.0347521 2028-Nov-02 16:00 3.036630389121 -0.0335131 2028-Nov-02 18:00 3.036628806047 -0.0322740 2028-Nov-02 20:00 3.036627282605 -0.0310349 2028-Nov-02 22:00 3.036625818797 -0.0297958 2028-Nov-03 00:00 3.036624414623 -0.0285568 2028-Nov-03 02:00 3.036623070083 -0.0273177 2028-Nov-03 04:00 3.036621785176 -0.0260786 2028-Nov-03 06:00 3.036620559904 -0.0248395 2028-Nov-03 08:00 3.036619394266 -0.0236004 2028-Nov-03 10:00 3.036618288263 -0.0223613 2028-Nov-03 12:00 3.036617241893 -0.0211222 2028-Nov-03 14:00 3.036616255159 -0.0198831 2028-Nov-03 16:00 3.036615328059 -0.0186440 2028-Nov-03 18:00 3.036614460595 -0.0174049 2028-Nov-03 20:00 3.036613652765 -0.0161658 2028-Nov-03 22:00 3.036612904571 -0.0149266 2028-Nov-04 00:00 3.036612216011 -0.0136875 2028-Nov-04 02:00 3.036611587087 -0.0124484 2028-Nov-04 04:00 3.036611017798 -0.0112093 2028-Nov-04 06:00 3.036610508145 -0.0099702 2028-Nov-04 08:00 3.036610058127 -0.0087310 2028-Nov-04 10:00 3.036609667744 -0.0074919 2028-Nov-04 12:00 3.036609336998 -0.0062528 2028-Nov-04 14:00 3.036609065886 -0.0050137 2028-Nov-04 16:00 3.036608854411 -0.0037745 2028-Nov-04 18:00 3.036608702571 -0.0025354 2028-Nov-04 20:00 3.036608610366 -0.0012963 2028-Nov-04 22:00 3.036608577797 -0.0000572 2028-Nov-05 00:00 3.036608604864 0.0011820 2028-Nov-05 02:00 3.036608691566 0.0024211 2028-Nov-05 04:00 3.036608837904 0.0036602 2028-Nov-05 06:00 3.036609043878 0.0048993 2028-Nov-05 08:00 3.036609309487 0.0061385 2028-Nov-05 10:00 3.036609634731 0.0073776 2028-Nov-05 12:00 3.036610019611 0.0086167 2028-Nov-05 14:00 3.036610464126 0.0098558 2028-Nov-05 16:00 3.036610968277 0.0110950 2028-Nov-05 18:00 3.036611532062 0.0123341 2028-Nov-05 20:00 3.036612155483 0.0135732 2028-Nov-05 22:00 3.036612838539 0.0148123 2028-Nov-06 00:00 3.036613581229 0.0160514 2028-Nov-06 02:00 3.036614383555 0.0172906 2028-Nov-06 04:00 3.036615245515 0.0185297 2028-Nov-06 06:00 3.036616167109 0.0197688 2028-Nov-06 08:00 3.036617148338 0.0210079 2028-Nov-06 10:00 3.036618189202 0.0222470 2028-Nov-06 12:00 3.036619289699 0.0234861 2028-Nov-06 14:00 3.036620449830 0.0247252 2028-Nov-06 16:00 3.036621669595 0.0259643 2028-Nov-06 18:00 3.036622948994 0.0272034 2028-Nov-06 20:00 3.036624288026 0.0284424 2028-Nov-06 22:00 3.036625686692 0.0296815 2028-Nov-07 00:00 3.036627144990 0.0309206 $$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 = '90000453' QUANTITIES = '19' START_TIME = '2028-Nov-02' STEP_SIZE = '2 hours' STOP_TIME = '2028-Nov-07'