******************************************************************************* JPL/HORIZONS 15P/Finlay 2024-Apr-25 21:39:08 Rec #:90000257 (+COV) Soln.date: 2024-Apr-16_11:19:30 # obs: 1655 (2008-2022) IAU76/J2000 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs): EPOCH= 2457327.5 ! 2015-Nov-01.0000000 (TDB) RMSW= n.a. EC= .7201854360264079 QR= .9766869801813776 TP= 2457018.5726384027 OM= 13.75387475146649 W= 347.6257499652587 IN= 6.800480403047977 A= 3.490479431490757 MA= 46.69096226297147 ADIST= 6.004271882800135 PER= 6.5213247379125 N= .151138967 ANGMOM= .022297017 DAN= .98628 DDN= 5.66552 L= 1.4640288 B= -1.4540551 MOID= .00922581 TP= 2014-Dec-27.0726384027 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= n.a. M1= 14.9 M2= n.a. k1= 8.5 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= 2.189036905766E-9 A2= -2.324458770454E-10 A3= 1.554466187954E-9 Standard model: ALN= .1112620426 NK= 4.6142 NM= 2.15 NN= 5.093 R0= 2.808 COMET comments 1: soln ref.= JPL#K213/18, data arc: 2008-04-27 to 2022-03-03 2: k1=8.5; ******************************************************************************* ******************************************************************************* Ephemeris / WWW_USER Thu Apr 25 21:39:08 2024 Pasadena, USA / Horizons ******************************************************************************* Target body name: 15P/Finlay {source: JPL#K213/18} Center body name: Earth (399) {source: DE441} Center-site name: GEOCENTRIC ******************************************************************************* Start time : A.D. 2028-Feb-07 00:00:00.0000 UT Stop time : A.D. 2028-Feb-12 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.240425.p240719 EOP coverage : DATA-BASED 1962-JAN-20 TO 2024-APR-25. PREDICTS-> 2024-JUL-18 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= 2457327.5 ! 2015-Nov-01.0000000 (TDB) RMSW= n.a. EC= .7201854360264079 QR= .9766869801813776 TP= 2457018.5726384027 OM= 13.75387475146649 W= 347.6257499652587 IN= 6.800480403047977 Equivalent ICRF heliocentric cartesian coordinates (au, au/d): X=-2.440330797692646E+00 Y= 2.013496073637186E+00 Z= 1.244072302414979E+00 VX=-9.446666292010828E-03 VY=-1.115623497185734E-04 VZ= 2.428263184812409E-04 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= n.a. M1= 14.9 M2= n.a. k1= 8.5 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= 2.189036905766E-9 A2= -2.324458770454E-10 A3= 1.554466187954E-9 Standard model: ALN= .1112620426 NK= 4.6142 NM= 2.15 NN= 5.093 R0= 2.808 ******************************************************************************* Date__(UT)__HR:MN r rdot ************************************************** $$SOE 2028-Feb-07 00:00 0.999440651579 -1.0493132 2028-Feb-07 03:00 0.999366550625 -1.0035022 2028-Feb-07 06:00 0.999295757503 -0.9576767 2028-Feb-07 09:00 0.999228273244 -0.9118372 2028-Feb-07 12:00 0.999164098829 -0.8659844 2028-Feb-07 15:00 0.999103235193 -0.8201190 2028-Feb-07 18:00 0.999045683220 -0.7742417 2028-Feb-07 21:00 0.998991443748 -0.7283531 2028-Feb-08 00:00 0.998940517568 -0.6824539 2028-Feb-08 03:00 0.998892905419 -0.6365447 2028-Feb-08 06:00 0.998848607997 -0.5906262 2028-Feb-08 09:00 0.998807625945 -0.5446992 2028-Feb-08 12:00 0.998769959861 -0.4987642 2028-Feb-08 15:00 0.998735610292 -0.4528219 2028-Feb-08 18:00 0.998704577739 -0.4068730 2028-Feb-08 21:00 0.998676862653 -0.3609182 2028-Feb-09 00:00 0.998652465439 -0.3149581 2028-Feb-09 03:00 0.998631386449 -0.2689934 2028-Feb-09 06:00 0.998613625992 -0.2230248 2028-Feb-09 09:00 0.998599184325 -0.1770530 2028-Feb-09 12:00 0.998588061657 -0.1310786 2028-Feb-09 15:00 0.998580258150 -0.0851022 2028-Feb-09 18:00 0.998575773915 -0.0391247 2028-Feb-09 21:00 0.998574609017 0.0068535 2028-Feb-10 00:00 0.998576763471 0.0528315 2028-Feb-10 03:00 0.998582237244 0.0988087 2028-Feb-10 06:00 0.998591030255 0.1447845 2028-Feb-10 09:00 0.998603142372 0.1907581 2028-Feb-10 12:00 0.998618573419 0.2367290 2028-Feb-10 15:00 0.998637323166 0.2826964 2028-Feb-10 18:00 0.998659391340 0.3286596 2028-Feb-10 21:00 0.998684777615 0.3746180 2028-Feb-11 00:00 0.998713481619 0.4205710 2028-Feb-11 03:00 0.998745502932 0.4665178 2028-Feb-11 06:00 0.998780841083 0.5124578 2028-Feb-11 09:00 0.998819495556 0.5583902 2028-Feb-11 12:00 0.998861465784 0.6043146 2028-Feb-11 15:00 0.998906751153 0.6502301 2028-Feb-11 18:00 0.998955351000 0.6961360 2028-Feb-11 21:00 0.999007264614 0.7420319 2028-Feb-12 00:00 0.999062491237 0.7879169 $$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 = '90000257' START_TIME = '2028-Feb-07' STOP_TIME = '2028-Feb-12' STEP_SIZE = '3 hours' QUANTITIES = '19'