******************************************************************************* JPL/HORIZONS 158P/Kowal-LINEAR 2025-Dec-12 21:18:23 Rec #:90001098 (+COV) Soln.date: 2025-Feb-13_09:13:06 # obs: 1093 (1979-2025) IAU76/J2000 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs): EPOCH= 2456120.5 ! 2012-Jul-12.0000000 (TDB) RMSW= n.a. EC= .0306085990974806 QR= 4.576458572657227 TP= 2456195.6792300106 OM= 137.3060656056641 W= 232.6123791327972 IN= 7.907531244758812 A= 4.720960561849908 MA= 352.7763551029171 ADIST= 4.865462551042588 PER= 10.257788985709 N= .096085646 ANGMOM= .037358815 DAN= 4.80586 DDN= 4.63048 L= 9.6540181 B= -6.2755092 MOID= 3.57992005 TP= 2012-Sep-25.1792300106 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= n.a. M1= 7.1 M2= 12.7 k1= 13.75 k2= 5. PHCOF= .030 COMET comments 1: soln ref.= JPL#166, data arc: 1979-07-24 to 2025-01-25 2: k1=13.75, k2=5., phase coef.=0.03; ******************************************************************************* ******************************************************************************* Ephemeris / WWW_USER Fri Dec 12 21:18:24 2025 Pasadena, USA / Horizons ******************************************************************************* Target body name: 158P/Kowal-LINEAR {source: JPL#166} Center body name: Earth (399) {source: DE441} Center-site name: GEOCENTRIC ******************************************************************************* Start time : A.D. 2036-Nov-01 00:00:00.0000 UT Stop time : A.D. 2036-Nov-15 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= 2456120.5 ! 2012-Jul-12.0000000 (TDB) RMSW= n.a. EC= .0306085990974806 QR= 4.576458572657227 TP= 2456195.6792300106 OM= 137.3060656056641 W= 232.6123791327972 IN= 7.907531244758812 Equivalent ICRF heliocentric cartesian coordinates (au, au/d): X= 4.553347135927006E+00 Y= 3.200835173867609E-01 Z=-3.460045625017110E-01 VX=-3.879553822182596E-04 VY= 7.758813857932662E-03 VZ= 2.500923655205664E-03 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= n.a. M1= 7.1 M2= 12.7 k1= 13.75 k2= 5. PHCOF= .030 ******************************************************************************* Date__(UT)__HR:MN r rdot ************************************************** $$SOE 2036-Nov-01 00:00 5.226372904304 -0.0148757 2036-Nov-01 03:00 5.226371838989 -0.0146390 2036-Nov-01 06:00 5.226370790758 -0.0144023 2036-Nov-01 09:00 5.226369759612 -0.0141657 2036-Nov-01 12:00 5.226368745549 -0.0139290 2036-Nov-01 15:00 5.226367748571 -0.0136924 2036-Nov-01 18:00 5.226366768677 -0.0134557 2036-Nov-01 21:00 5.226365805867 -0.0132191 2036-Nov-02 00:00 5.226364860142 -0.0129824 2036-Nov-02 03:00 5.226363931501 -0.0127457 2036-Nov-02 06:00 5.226363019944 -0.0125091 2036-Nov-02 09:00 5.226362125472 -0.0122724 2036-Nov-02 12:00 5.226361248084 -0.0120357 2036-Nov-02 15:00 5.226360387781 -0.0117991 2036-Nov-02 18:00 5.226359544563 -0.0115624 2036-Nov-02 21:00 5.226358718429 -0.0113258 2036-Nov-03 00:00 5.226357909380 -0.0110891 2036-Nov-03 03:00 5.226357117416 -0.0108524 2036-Nov-03 06:00 5.226356342536 -0.0106158 2036-Nov-03 09:00 5.226355584741 -0.0103791 2036-Nov-03 12:00 5.226354844031 -0.0101424 2036-Nov-03 15:00 5.226354120406 -0.0099058 2036-Nov-03 18:00 5.226353413866 -0.0096691 2036-Nov-03 21:00 5.226352724410 -0.0094324 2036-Nov-04 00:00 5.226352052040 -0.0091957 2036-Nov-04 03:00 5.226351396754 -0.0089591 2036-Nov-04 06:00 5.226350758554 -0.0087224 2036-Nov-04 09:00 5.226350137438 -0.0084857 2036-Nov-04 12:00 5.226349533407 -0.0082491 2036-Nov-04 15:00 5.226348946462 -0.0080124 2036-Nov-04 18:00 5.226348376601 -0.0077757 2036-Nov-04 21:00 5.226347823826 -0.0075390 2036-Nov-05 00:00 5.226347288136 -0.0073024 2036-Nov-05 03:00 5.226346769531 -0.0070657 2036-Nov-05 06:00 5.226346268011 -0.0068290 2036-Nov-05 09:00 5.226345783576 -0.0065924 2036-Nov-05 12:00 5.226345316227 -0.0063557 2036-Nov-05 15:00 5.226344865962 -0.0061190 2036-Nov-05 18:00 5.226344432783 -0.0058823 2036-Nov-05 21:00 5.226344016689 -0.0056457 2036-Nov-06 00:00 5.226343617681 -0.0054090 2036-Nov-06 03:00 5.226343235758 -0.0051723 2036-Nov-06 06:00 5.226342870920 -0.0049356 2036-Nov-06 09:00 5.226342523167 -0.0046990 2036-Nov-06 12:00 5.226342192500 -0.0044623 2036-Nov-06 15:00 5.226341878918 -0.0042256 2036-Nov-06 18:00 5.226341582421 -0.0039889 2036-Nov-06 21:00 5.226341303010 -0.0037522 2036-Nov-07 00:00 5.226341040684 -0.0035156 2036-Nov-07 03:00 5.226340795443 -0.0032789 2036-Nov-07 06:00 5.226340567288 -0.0030422 2036-Nov-07 09:00 5.226340356218 -0.0028055 2036-Nov-07 12:00 5.226340162234 -0.0025689 2036-Nov-07 15:00 5.226339985335 -0.0023322 2036-Nov-07 18:00 5.226339825522 -0.0020955 2036-Nov-07 21:00 5.226339682793 -0.0018588 2036-Nov-08 00:00 5.226339557151 -0.0016221 2036-Nov-08 03:00 5.226339448593 -0.0013855 2036-Nov-08 06:00 5.226339357121 -0.0011488 2036-Nov-08 09:00 5.226339282735 -0.0009121 2036-Nov-08 12:00 5.226339225434 -0.0006754 2036-Nov-08 15:00 5.226339185218 -0.0004388 2036-Nov-08 18:00 5.226339162088 -0.0002021 2036-Nov-08 21:00 5.226339156043 0.0000346 2036-Nov-09 00:00 5.226339167083 0.0002713 2036-Nov-09 03:00 5.226339195209 0.0005080 2036-Nov-09 06:00 5.226339240421 0.0007446 2036-Nov-09 09:00 5.226339302717 0.0009813 2036-Nov-09 12:00 5.226339382099 0.0012180 2036-Nov-09 15:00 5.226339478567 0.0014547 2036-Nov-09 18:00 5.226339592119 0.0016913 2036-Nov-09 21:00 5.226339722757 0.0019280 2036-Nov-10 00:00 5.226339870481 0.0021647 2036-Nov-10 03:00 5.226340035290 0.0024014 2036-Nov-10 06:00 5.226340217184 0.0026381 2036-Nov-10 09:00 5.226340416163 0.0028747 2036-Nov-10 12:00 5.226340632227 0.0031114 2036-Nov-10 15:00 5.226340865377 0.0033481 2036-Nov-10 18:00 5.226341115612 0.0035848 2036-Nov-10 21:00 5.226341382933 0.0038214 2036-Nov-11 00:00 5.226341667338 0.0040581 2036-Nov-11 03:00 5.226341968829 0.0042948 2036-Nov-11 06:00 5.226342287405 0.0045315 2036-Nov-11 09:00 5.226342623066 0.0047681 2036-Nov-11 12:00 5.226342975812 0.0050048 2036-Nov-11 15:00 5.226343345643 0.0052415 2036-Nov-11 18:00 5.226343732559 0.0054782 2036-Nov-11 21:00 5.226344136561 0.0057149 2036-Nov-12 00:00 5.226344557647 0.0059515 2036-Nov-12 03:00 5.226344995818 0.0061882 2036-Nov-12 06:00 5.226345451074 0.0064249 2036-Nov-12 09:00 5.226345923416 0.0066615 2036-Nov-12 12:00 5.226346412842 0.0068982 2036-Nov-12 15:00 5.226346919353 0.0071349 2036-Nov-12 18:00 5.226347442949 0.0073716 2036-Nov-12 21:00 5.226347983629 0.0076082 2036-Nov-13 00:00 5.226348541395 0.0078449 2036-Nov-13 03:00 5.226349116245 0.0080816 2036-Nov-13 06:00 5.226349708180 0.0083182 2036-Nov-13 09:00 5.226350317200 0.0085549 2036-Nov-13 12:00 5.226350943304 0.0087916 2036-Nov-13 15:00 5.226351586493 0.0090283 2036-Nov-13 18:00 5.226352246766 0.0092649 2036-Nov-13 21:00 5.226352924124 0.0095016 2036-Nov-14 00:00 5.226353618567 0.0097383 2036-Nov-14 03:00 5.226354330094 0.0099749 2036-Nov-14 06:00 5.226355058705 0.0102116 2036-Nov-14 09:00 5.226355804401 0.0104483 2036-Nov-14 12:00 5.226356567181 0.0106849 2036-Nov-14 15:00 5.226357347045 0.0109216 2036-Nov-14 18:00 5.226358143993 0.0111583 2036-Nov-14 21:00 5.226358958026 0.0113949 2036-Nov-15 00:00 5.226359789143 0.0116316 $$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 = '158P' QUANTITIES = '19' START_TIME = '2036-Nov-01' STEP_SIZE = '3 hours' STOP_TIME = '2036-Nov-15'