******************************************************************************* JPL/HORIZONS 4P/Faye 2025-Dec-12 17:43:05 Rec #:90000117 (+COV) Soln.date: 2021-May-04_15:22:22 # obs: 4406 (1991-2015) IAU76/J2000 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs): EPOCH= 2454451.5 ! 2007-Dec-17.0000000 (TDB) RMSW= n.a. EC= .5666972806377412 QR= 1.666888286013097 TP= 2454054.9157474288 OM= 199.2986682731448 W= 204.9962502214562 IN= 9.032593530268114 A= 3.846937052383255 MA= 51.80443235738666 ADIST= 6.026985818753413 PER= 7.5453748862304 N= .130626549 ANGMOM= .027798876 DAN= 5.36925 DDN= 1.72534 L= 44.0222039 B= -3.8038066 MOID= .67970097 TP= 2006-Nov-15.4157474288 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= 1.77 M1= 11. M2= 13.2 k1= 9.5 k2= 5. PHCOF= .030 Comet non-gravitational force model (AMRAT=m^2/kg;A1-A3=au/d^2;DT=days;R0=au): AMRAT= 0. DT= 0. A1= 4.630915820599E-9 A2= -2.987171337008E-10 A3= -8.829962462187E-10 Standard model: ALN= .1112620426 NK= 4.6142 NM= 2.15 NN= 5.093 R0= 2.808 COMET comments 1: soln ref.= JPL#K144/8, data arc: 1991-04-16 to 2015-06-10 2: k1=9.5, k2=5., phase coef.=0.03; ******************************************************************************* ******************************************************************************* Ephemeris / WWW_USER Fri Dec 12 17:43:05 2025 Pasadena, USA / Horizons ******************************************************************************* Target body name: 4P/Faye {source: JPL#K144/8} Center body name: Earth (399) {source: DE441} Center-site name: GEOCENTRIC ******************************************************************************* Start time : A.D. 2029-Mar-01 00:00:00.0000 UT Stop time : A.D. 2029-Mar-20 00:00:00.0000 UT Step-size : 180 minutes ******************************************************************************* Target pole/equ : undefined Target radii : 1.77 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.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= 2454451.5 ! 2007-Dec-17.0000000 (TDB) RMSW= n.a. EC= .5666972806377412 QR= 1.666888286013097 TP= 2454054.9157474288 OM= 199.2986682731448 W= 204.9962502214562 IN= 9.032593530268114 Equivalent ICRF heliocentric cartesian coordinates (au, au/d): X=-3.470588091426843E+00 Y= 1.035666146359007E+00 Z= 8.909870290145289E-02 VX=-7.194149081264014E-03 VY=-5.583038900519996E-03 VZ=-1.873013407416443E-03 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= 1.77 M1= 11. M2= 13.2 k1= 9.5 k2= 5. PHCOF= .030 Comet non-gravitational force model (AMRAT=m^2/kg;A1-A3=au/d^2;DT=days;R0=au): AMRAT= 0. DT= 0. A1= 4.630915820599E-9 A2= -2.987171337008E-10 A3= -8.829962462187E-10 Standard model: ALN= .1112620426 NK= 4.6142 NM= 2.15 NN= 5.093 R0= 2.808 ******************************************************************************* Date__(UT)__HR:MN r rdot ************************************************** $$SOE 2029-Mar-01 00:00 1.630345734312 -0.9581140 2029-Mar-01 03:00 1.630277064661 -0.9443026 2029-Mar-01 06:00 1.630209392183 -0.9304884 2029-Mar-01 09:00 1.630142717075 -0.9166716 2029-Mar-01 12:00 1.630077039530 -0.9028521 2029-Mar-01 15:00 1.630012359738 -0.8890300 2029-Mar-01 18:00 1.629948677888 -0.8752053 2029-Mar-01 21:00 1.629885994163 -0.8613780 2029-Mar-02 00:00 1.629824308746 -0.8475483 2029-Mar-02 03:00 1.629763621815 -0.8337161 2029-Mar-02 06:00 1.629703933548 -0.8198815 2029-Mar-02 09:00 1.629645244117 -0.8060445 2029-Mar-02 12:00 1.629587553692 -0.7922051 2029-Mar-02 15:00 1.629530862442 -0.7783635 2029-Mar-02 18:00 1.629475170530 -0.7645196 2029-Mar-02 21:00 1.629420478120 -0.7506734 2029-Mar-03 00:00 1.629366785369 -0.7368251 2029-Mar-03 03:00 1.629314092433 -0.7229747 2029-Mar-03 06:00 1.629262399467 -0.7091221 2029-Mar-03 09:00 1.629211706619 -0.6952675 2029-Mar-03 12:00 1.629162014038 -0.6814109 2029-Mar-03 15:00 1.629113321868 -0.6675523 2029-Mar-03 18:00 1.629065630250 -0.6536917 2029-Mar-03 21:00 1.629018939323 -0.6398292 2029-Mar-04 00:00 1.628973249223 -0.6259649 2029-Mar-04 03:00 1.628928560083 -0.6120988 2029-Mar-04 06:00 1.628884872033 -0.5982308 2029-Mar-04 09:00 1.628842185199 -0.5843612 2029-Mar-04 12:00 1.628800499707 -0.5704898 2029-Mar-04 15:00 1.628759815677 -0.5566168 2029-Mar-04 18:00 1.628720133228 -0.5427421 2029-Mar-04 21:00 1.628681452475 -0.5288659 2029-Mar-05 00:00 1.628643773530 -0.5149881 2029-Mar-05 03:00 1.628607096505 -0.5011089 2029-Mar-05 06:00 1.628571421504 -0.4872281 2029-Mar-05 09:00 1.628536748632 -0.4733460 2029-Mar-05 12:00 1.628503077990 -0.4594625 2029-Mar-05 15:00 1.628470409677 -0.4455776 2029-Mar-05 18:00 1.628438743786 -0.4316914 2029-Mar-05 21:00 1.628408080410 -0.4178040 2029-Mar-06 00:00 1.628378419639 -0.4039154 2029-Mar-06 03:00 1.628349761559 -0.3900256 2029-Mar-06 06:00 1.628322106252 -0.3761346 2029-Mar-06 09:00 1.628295453801 -0.3622426 2029-Mar-06 12:00 1.628269804282 -0.3483495 2029-Mar-06 15:00 1.628245157770 -0.3344554 2029-Mar-06 18:00 1.628221514336 -0.3205603 2029-Mar-06 21:00 1.628198874050 -0.3066643 2029-Mar-07 00:00 1.628177236978 -0.2927674 2029-Mar-07 03:00 1.628156603181 -0.2788696 2029-Mar-07 06:00 1.628136972722 -0.2649710 2029-Mar-07 09:00 1.628118345655 -0.2510717 2029-Mar-07 12:00 1.628100722037 -0.2371716 2029-Mar-07 15:00 1.628084101917 -0.2232709 2029-Mar-07 18:00 1.628068485344 -0.2093694 2029-Mar-07 21:00 1.628053872364 -0.1954674 2029-Mar-08 00:00 1.628040263020 -0.1815648 2029-Mar-08 03:00 1.628027657349 -0.1676617 2029-Mar-08 06:00 1.628016055391 -0.1537581 2029-Mar-08 09:00 1.628005457177 -0.1398540 2029-Mar-08 12:00 1.627995862738 -0.1259496 2029-Mar-08 15:00 1.627987272103 -0.1120447 2029-Mar-08 18:00 1.627979685297 -0.0981396 2029-Mar-08 21:00 1.627973102341 -0.0842341 2029-Mar-09 00:00 1.627967523254 -0.0703285 2029-Mar-09 03:00 1.627962948052 -0.0564226 2029-Mar-09 06:00 1.627959376749 -0.0425165 2029-Mar-09 09:00 1.627956809355 -0.0286104 2029-Mar-09 12:00 1.627955245876 -0.0147041 2029-Mar-09 15:00 1.627954686318 -0.0007978 2029-Mar-09 18:00 1.627955130682 0.0131085 2029-Mar-09 21:00 1.627956578966 0.0270147 2029-Mar-10 00:00 1.627959031166 0.0409209 2029-Mar-10 03:00 1.627962487274 0.0548269 2029-Mar-10 06:00 1.627966947280 0.0687328 2029-Mar-10 09:00 1.627972411171 0.0826385 2029-Mar-10 12:00 1.627978878931 0.0965439 2029-Mar-10 15:00 1.627986350540 0.1104491 2029-Mar-10 18:00 1.627994825976 0.1243539 2029-Mar-10 21:00 1.628004305215 0.1382583 2029-Mar-11 00:00 1.628014788229 0.1521624 2029-Mar-11 03:00 1.628026274986 0.1660660 2029-Mar-11 06:00 1.628038765453 0.1799691 2029-Mar-11 09:00 1.628052259593 0.1938717 2029-Mar-11 12:00 1.628066757367 0.2077737 2029-Mar-11 15:00 1.628082258732 0.2216751 2029-Mar-11 18:00 1.628098763642 0.2355759 2029-Mar-11 21:00 1.628116272049 0.2494760 2029-Mar-12 00:00 1.628134783902 0.2633753 2029-Mar-12 03:00 1.628154299146 0.2772739 2029-Mar-12 06:00 1.628174817724 0.2911716 2029-Mar-12 09:00 1.628196339576 0.3050685 2029-Mar-12 12:00 1.628218864640 0.3189645 2029-Mar-12 15:00 1.628242392847 0.3328596 2029-Mar-12 18:00 1.628266924131 0.3467537 2029-Mar-12 21:00 1.628292458419 0.3606468 2029-Mar-13 00:00 1.628318995637 0.3745388 2029-Mar-13 03:00 1.628346535706 0.3884298 2029-Mar-13 06:00 1.628375078546 0.4023196 2029-Mar-13 09:00 1.628404624073 0.4162082 2029-Mar-13 12:00 1.628435172202 0.4300956 2029-Mar-13 15:00 1.628466722842 0.4439817 2029-Mar-13 18:00 1.628499275902 0.4578666 2029-Mar-13 21:00 1.628532831286 0.4717501 2029-Mar-14 00:00 1.628567388896 0.4856322 2029-Mar-14 03:00 1.628602948630 0.4995129 2029-Mar-14 06:00 1.628639510386 0.5133922 2029-Mar-14 09:00 1.628677074057 0.5272700 2029-Mar-14 12:00 1.628715639531 0.5411462 2029-Mar-14 15:00 1.628755206697 0.5550208 2029-Mar-14 18:00 1.628795775440 0.5688938 2029-Mar-14 21:00 1.628837345640 0.5827652 2029-Mar-15 00:00 1.628879917176 0.5966348 2029-Mar-15 03:00 1.628923489925 0.6105027 2029-Mar-15 06:00 1.628968063758 0.6243688 2029-Mar-15 09:00 1.629013638546 0.6382332 2029-Mar-15 12:00 1.629060214155 0.6520956 2029-Mar-15 15:00 1.629107790450 0.6659561 2029-Mar-15 18:00 1.629156367292 0.6798147 2029-Mar-15 21:00 1.629205944540 0.6936714 2029-Mar-16 00:00 1.629256522048 0.7075260 2029-Mar-16 03:00 1.629308099669 0.7213785 2029-Mar-16 06:00 1.629360677253 0.7352289 2029-Mar-16 09:00 1.629414254646 0.7490772 2029-Mar-16 12:00 1.629468831693 0.7629233 2029-Mar-16 15:00 1.629524408234 0.7767672 2029-Mar-16 18:00 1.629580984108 0.7906088 2029-Mar-16 21:00 1.629638559150 0.8044481 2029-Mar-17 00:00 1.629697133191 0.8182851 2029-Mar-17 03:00 1.629756706062 0.8321197 2029-Mar-17 06:00 1.629817277589 0.8459519 2029-Mar-17 09:00 1.629878847596 0.8597816 2029-Mar-17 12:00 1.629941415903 0.8736088 2029-Mar-17 15:00 1.630004982329 0.8874335 2029-Mar-17 18:00 1.630069546688 0.9012556 2029-Mar-17 21:00 1.630135108794 0.9150751 2029-Mar-18 00:00 1.630201668455 0.9288919 2029-Mar-18 03:00 1.630269225477 0.9427060 2029-Mar-18 06:00 1.630337779665 0.9565174 2029-Mar-18 09:00 1.630407330819 0.9703260 2029-Mar-18 12:00 1.630477878737 0.9841317 2029-Mar-18 15:00 1.630549423215 0.9979346 2029-Mar-18 18:00 1.630621964044 1.0117347 2029-Mar-18 21:00 1.630695501014 1.0255318 2029-Mar-19 00:00 1.630770033912 1.0393259 2029-Mar-19 03:00 1.630845562521 1.0531170 2029-Mar-19 06:00 1.630922086622 1.0669050 2029-Mar-19 09:00 1.630999605993 1.0806900 2029-Mar-19 12:00 1.631078120409 1.0944718 2029-Mar-19 15:00 1.631157629643 1.1082504 2029-Mar-19 18:00 1.631238133465 1.1220259 2029-Mar-19 21:00 1.631319631640 1.1357980 2029-Mar-20 00:00 1.631402123934 1.1495669 $$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 = '90000117' QUANTITIES = '19' START_TIME = '2029-Mar-01' STEP_SIZE = '3 hours' STOP_TIME = '2029-Mar-20'