******************************************************************************* JPL/HORIZONS 15P/Finlay 2025-Dec-12 18:01:29 Rec #:90000257 (+COV) Soln.date: 2017-Feb-09_10:12:18 # obs: 301 (1995-2009) IAU76/J2000 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs): EPOCH= 2454305.5 ! 2007-Jul-24.0000000 (TDB) RMSW= n.a. EC= .7216136622309615 QR= .9689723158784306 TP= 2454640.0223165308 OM= 13.85397739180755 W= 347.4860465575748 IN= 6.821474258162459 A= 3.480674819187184 MA= 309.226863532629 ADIST= 5.992377322495937 PER= 6.4938668454819 N= .151778025 ANGMOM= .022218001 DAN= .97872 DDN= 5.64477 L= 1.4258475 B= -1.4747326 MOID= .0138442 TP= 2008-Jun-22.5223165308 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= 3.235708475113E-9 A2= 2.043157629669E-10 A3= 0. Standard model: ALN= .1112620426 NK= 4.6142 NM= 2.15 NN= 5.093 R0= 2.808 COMET comments 1: soln ref.= JPL#K083/1, data arc: 1995-10-26 to 2009-03-20 2: k1=8.5; ******************************************************************************* ******************************************************************************* Ephemeris / WWW_USER Fri Dec 12 18:01:29 2025 Pasadena, USA / Horizons ******************************************************************************* Target body name: 15P/Finlay {source: JPL#K083/1} 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.251212.p260310 EOP coverage : DATA-BASED 1962-JAN-20 TO 2025-DEC-12. PREDICTS-> 2026-MAR-09 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= 2454305.5 ! 2007-Jul-24.0000000 (TDB) RMSW= n.a. EC= .7216136622309615 QR= .9689723158784306 TP= 2454640.0223165308 OM= 13.85397739180755 W= 347.4860465575748 IN= 6.821474258162459 Equivalent ICRF heliocentric cartesian coordinates (au, au/d): X=-2.584682353446350E+00 Y=-2.170082003611103E+00 Z=-1.171165586680210E+00 VX= 8.977054152774241E-03 VY= 1.005198453911742E-04 VZ=-2.369361347631302E-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= 3.235708475113E-9 A2= 2.043157629669E-10 A3= 0. Standard model: ALN= .1112620426 NK= 4.6142 NM= 2.15 NN= 5.093 R0= 2.808 ******************************************************************************* Date__(UT)__HR:MN r rdot ************************************************** $$SOE 2028-Feb-07 00:00 0.999708159705 -1.1946845 2028-Feb-07 03:00 0.999623561897 -1.1489240 2028-Feb-07 06:00 0.999542268361 -1.1031467 2028-Feb-07 09:00 0.999464280277 -1.0573535 2028-Feb-07 12:00 0.999389598779 -1.0115448 2028-Feb-07 15:00 0.999318224953 -0.9657214 2028-Feb-07 18:00 0.999250159836 -0.9198840 2028-Feb-07 21:00 0.999185404419 -0.8740332 2028-Feb-08 00:00 0.999123959644 -0.8281696 2028-Feb-08 03:00 0.999065826406 -0.7822940 2028-Feb-08 06:00 0.999011005549 -0.7364070 2028-Feb-08 09:00 0.998959497873 -0.6905092 2028-Feb-08 12:00 0.998911304127 -0.6446014 2028-Feb-08 15:00 0.998866425013 -0.5986842 2028-Feb-08 18:00 0.998824861185 -0.5527583 2028-Feb-08 21:00 0.998786613247 -0.5068242 2028-Feb-09 00:00 0.998751681757 -0.4608828 2028-Feb-09 03:00 0.998720067223 -0.4149347 2028-Feb-09 06:00 0.998691770105 -0.3689806 2028-Feb-09 09:00 0.998666790815 -0.3230210 2028-Feb-09 12:00 0.998645129717 -0.2770567 2028-Feb-09 15:00 0.998626787126 -0.2310884 2028-Feb-09 18:00 0.998611763307 -0.1851168 2028-Feb-09 21:00 0.998600058479 -0.1391424 2028-Feb-10 00:00 0.998591672812 -0.0931660 2028-Feb-10 03:00 0.998586606425 -0.0471883 2028-Feb-10 06:00 0.998584859393 -0.0012098 2028-Feb-10 09:00 0.998586431739 0.0447686 2028-Feb-10 12:00 0.998591323437 0.0907464 2028-Feb-10 15:00 0.998599534416 0.1367228 2028-Feb-10 18:00 0.998611064553 0.1826972 2028-Feb-10 21:00 0.998625913679 0.2286690 2028-Feb-11 00:00 0.998644081574 0.2746374 2028-Feb-11 03:00 0.998665567973 0.3206017 2028-Feb-11 06:00 0.998690372558 0.3665614 2028-Feb-11 09:00 0.998718494966 0.4125157 2028-Feb-11 12:00 0.998749934786 0.4584640 2028-Feb-11 15:00 0.998784691555 0.5044056 2028-Feb-11 18:00 0.998822764765 0.5503398 2028-Feb-11 21:00 0.998864153859 0.5962659 2028-Feb-12 00:00 0.998908858229 0.6421834 $$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/horizons_batch.txt scripts https://ssd.jpl.nasa.gov/ftp/ssd/SCRIPTS Author : Jon.D.Giorgini@jpl.nasa.gov ******************************************************************************* !$$SOF COMMAND = '90000257' QUANTITIES = '19' START_TIME = '2028-Feb-07' STEP_SIZE = '3 hours' STOP_TIME = '2028-Feb-12'