******************************************************************************* JPL/HORIZONS Wierzchos (C/2024 E1) 2025-Dec-12 18:04:12 Rec #:90004841 (+COV) Soln.date: 2025-Dec-03_10:59:40 # obs: 2015 (2024-2025) IAU76/J2000 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs): EPOCH= 2460782.5 ! 2025-Apr-17.0000000 (TDB) RMSW= n.a. EC= 1.000053271626665 QR= .5659038925785935 TP= 2461061.2620973596 OM= 108.082707163323 W= 243.6367280222768 IN= 75.23846105855061 A= -10622.98878420012 MA= -.000250938739935667ADIST= 9.999999E99 PER= 9.999999E99 N= 9.E-7 ANGMOM= .018300947 DAN= 2.03599 DDN= .78378 L= 315.2909399 B= -60.0456973 MOID= .199251 TP= 2026-Jan-20.7620973596 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= n.a. M1= 11.4 M2= n.a. k1= 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= 1.816174888611E-7 A2= 6.812551498413E-8 A3= 0. Standard model: ALN= .1112620426 NK= 4.6142 NM= 2.15 NN= 5.093 R0= 2.808 COMET comments 1: soln ref.= JPL#58, data arc: 2024-02-15 to 2025-12-01 2: k1=5.; ******************************************************************************* ******************************************************************************* Ephemeris / WWW_USER Fri Dec 12 18:04:12 2025 Pasadena, USA / Horizons ******************************************************************************* Target body name: Wierzchos (C/2024 E1) {source: JPL#58} Center body name: Sun (10) {source: DE441} Center-site name: BODYCENTRIC ******************************************************************************* Start time : A.D. 2026-Jan-20 18:23:00.0000 UT Stop time : A.D. 2026-Jan-20 18:29:00.0000 UT Step-size : 18 steps ******************************************************************************* Target pole/equ : undefined Target radii : undefined Center geodetic : 0.0, 0.0, -695700.0 {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 : IAU_SUN {East-longitude positive} Center radii : 695700.0, 695700.0, 695700.0 km {Equator_a, b, pole_c} Target primary : Sun Vis. interferer : None 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 n.a. , 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= 2460782.5 ! 2025-Apr-17.0000000 (TDB) RMSW= n.a. EC= 1.000053271626665 QR= .5659038925785935 TP= 2461061.2620973596 OM= 108.082707163323 W= 243.6367280222768 IN= 75.23846105855061 Equivalent ICRF heliocentric cartesian coordinates (au, au/d): X=-6.002631670131418E-01 Y=-2.893556846617582E+00 Z= 2.988243499316908E+00 VX= 3.174506808486553E-03 VY= 4.535365096477909E-03 VZ=-1.049767957984703E-02 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= n.a. M1= 11.4 M2= n.a. k1= 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= 1.816174888611E-7 A2= 6.812551498413E-8 A3= 0. Standard model: ALN= .1112620426 NK= 4.6142 NM= 2.15 NN= 5.093 R0= 2.808 ********************************************************************************** Date__(UT)__HR:MN:SC.fff r rdot VmagSn VmagOb ********************************************************************************** $$SOE 2026-Jan-20 18:23:00.000 0.566546945798 -0.0047825 55.9600042 55.9600041 2026-Jan-20 18:23:20.000 0.566546945183 -0.0044128 55.9600043 55.9600042 2026-Jan-20 18:23:40.000 0.566546944618 -0.0040431 55.9600044 55.9600043 2026-Jan-20 18:24:00.000 0.566546944102 -0.0036734 55.9600045 55.9600044 2026-Jan-20 18:24:20.000 0.566546943635 -0.0033037 55.9600047 55.9600046 2026-Jan-20 18:24:40.000 0.566546943218 -0.0029340 55.9600048 55.9600047 2026-Jan-20 18:25:00.000 0.566546942851 -0.0025643 55.9600049 55.9600048 2026-Jan-20 18:25:20.000 0.566546942533 -0.0021945 55.9600050 55.9600049 2026-Jan-20 18:25:40.000 0.566546942264 -0.0018248 55.9600051 55.9600050 2026-Jan-20 18:26:00.000 0.566546942045 -0.0014551 55.9600052 55.9600051 2026-Jan-20 18:26:20.000 0.566546941875 -0.0010854 55.9600053 55.9600052 2026-Jan-20 18:26:40.000 0.566546941755 -0.0007157 55.9600054 55.9600053 2026-Jan-20 18:27:00.000 0.566546941684 -0.0003460 55.9600055 55.9600054 2026-Jan-20 18:27:20.000 0.566546941662 0.0000237 55.9600056 55.9600055 2026-Jan-20 18:27:40.000 0.566546941690 0.0003935 55.9600057 55.9600056 2026-Jan-20 18:28:00.000 0.566546941767 0.0007632 55.9600058 55.9600057 2026-Jan-20 18:28:20.000 0.566546941894 0.0011329 55.9600059 55.9600058 2026-Jan-20 18:28:40.000 0.566546942070 0.0015026 55.9600060 55.9600059 2026-Jan-20 18:29:00.000 0.566546942296 0.0018723 55.9600060 55.9600059 $$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 'VmagSn VmagOb' = Magnitude of target centers' velocity with respect to the Sun ("VmagSn") and the observer ("VmagOb") at the time light left the target center to be observed (print time minus down-leg light-time). These are absolute values of the velocity vectors (total speeds) and do NOT indicate direction of motion. Units: 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 CENTER = '@Sun' COMMAND = '2024 E1' QUANTITIES = '19,22' START_TIME = '2026-01-20 18:23' STEP_SIZE = '18' STOP_TIME = '2026-01-20 18:29'