******************************************************************************* JPL/HORIZONS 12P/Pons-Brooks 2024-May-02 06:24:52 Rec #:90000223 (+COV) Soln.date: 2024-Apr-29_15:04:30 # obs: 7764 (1953-2024) IAU76/J2000 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs): EPOCH= 2460201.5 ! 2023-Sep-14.0000000 (TDB) RMSW= n.a. EC= .9545602321210124 QR= .7808647072011008 TP= 2460421.6315896292 OM= 255.8550487198595 W= 198.988008579359 IN= 74.1908389894113 A= 17.18461038975048 MA= 356.9543716368921 ADIST= 33.58835607229985 PER= 71.23898738491501 N= .01383549 ANGMOM= .021251709 DAN= 15.67302 DDN= .80218 L= 81.2104653 B= -18.2439154 MOID= .181446 TP= 2024-Apr-21.1315896292 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= n.a. M1= 5. M2= 11. k1= 15. k2= 10. PHCOF= n.a. COMET comments 1: soln ref.= JPL#K242/61, data arc: 1953-06-20 to 2024-04-19 2: k1=15.0, k2=10.0; ******************************************************************************* ******************************************************************************* Ephemeris / WWW_USER Thu May 2 06:24:52 2024 Pasadena, USA / Horizons ******************************************************************************* Target body name: 12P/Pons-Brooks {source: JPL#K242/61} Center body name: Earth (399) {source: DE441} Center-site name: GEOCENTRIC ******************************************************************************* Start time : A.D. 2095-Aug-01 00:00:00.0000 UT Stop time : A.D. 2095-Aug-31 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.240501.p240725 EOP coverage : DATA-BASED 1962-JAN-20 TO 2024-MAY-01. PREDICTS-> 2024-JUL-24 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= 2460201.5 ! 2023-Sep-14.0000000 (TDB) RMSW= n.a. EC= .9545602321210124 QR= .7808647072011008 TP= 2460421.6315896292 OM= 255.8550487198595 W= 198.988008579359 IN= 74.1908389894113 Equivalent ICRF heliocentric cartesian coordinates (au, au/d): X= 6.283545260894083E-01 Y=-2.181994326134274E+00 Z= 2.388813173497006E+00 VX=-1.271069889007513E-04 VY= 1.205841645754723E-02 VZ=-4.114318311673151E-03 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= n.a. M1= 5. M2= 11. k1= 15. k2= 10. PHCOF= n.a. ******************************************************************************* Date__(UT)__HR:MN r rdot ************************************************** $$SOE 2095-Aug-01 00:00 0.829314902756 -10.6025613 2095-Aug-01 03:00 0.828552285245 -10.5235132 2095-Aug-01 06:00 0.827795385735 -10.4441616 2095-Aug-01 09:00 0.827044226094 -10.3645077 2095-Aug-01 12:00 0.826298828117 -10.2845524 2095-Aug-01 15:00 0.825559213517 -10.2042969 2095-Aug-01 18:00 0.824825403931 -10.1237423 2095-Aug-01 21:00 0.824097420913 -10.0428897 2095-Aug-02 00:00 0.823375285930 -9.9617404 2095-Aug-02 03:00 0.822659020364 -9.8802955 2095-Aug-02 06:00 0.821948645509 -9.7985564 2095-Aug-02 09:00 0.821244182564 -9.7165242 2095-Aug-02 12:00 0.820545652637 -9.6342003 2095-Aug-02 15:00 0.819853076739 -9.5515861 2095-Aug-02 18:00 0.819166475782 -9.4686829 2095-Aug-02 21:00 0.818485870579 -9.3854921 2095-Aug-03 00:00 0.817811281836 -9.3020153 2095-Aug-03 03:00 0.817142730157 -9.2182538 2095-Aug-03 06:00 0.816480236038 -9.1342092 2095-Aug-03 09:00 0.815823819861 -9.0498830 2095-Aug-03 12:00 0.815173501900 -8.9652768 2095-Aug-03 15:00 0.814529302311 -8.8803923 2095-Aug-03 18:00 0.813891241133 -8.7952310 2095-Aug-03 21:00 0.813259338286 -8.7097946 2095-Aug-04 00:00 0.812633613567 -8.6240849 2095-Aug-04 03:00 0.812014086650 -8.5381035 2095-Aug-04 06:00 0.811400777080 -8.4518523 2095-Aug-04 09:00 0.810793704275 -8.3653330 2095-Aug-04 12:00 0.810192887518 -8.2785476 2095-Aug-04 15:00 0.809598345961 -8.1914978 2095-Aug-04 18:00 0.809010098619 -8.1041856 2095-Aug-04 21:00 0.808428164367 -8.0166130 2095-Aug-05 00:00 0.807852561940 -7.9287818 2095-Aug-05 03:00 0.807283309929 -7.8406941 2095-Aug-05 06:00 0.806720426779 -7.7523519 2095-Aug-05 09:00 0.806163930787 -7.6637574 2095-Aug-05 12:00 0.805613840100 -7.5749125 2095-Aug-05 15:00 0.805070172710 -7.4858195 2095-Aug-05 18:00 0.804532946457 -7.3964805 2095-Aug-05 21:00 0.804002179020 -7.3068977 2095-Aug-06 00:00 0.803477887921 -7.2170733 2095-Aug-06 03:00 0.802960090517 -7.1270096 2095-Aug-06 06:00 0.802448804004 -7.0367089 2095-Aug-06 09:00 0.801944045407 -6.9461735 2095-Aug-06 12:00 0.801445831584 -6.8554058 2095-Aug-06 15:00 0.800954179224 -6.7644081 2095-Aug-06 18:00 0.800469104838 -6.6731829 2095-Aug-06 21:00 0.799990624763 -6.5817327 2095-Aug-07 00:00 0.799518755159 -6.4900598 2095-Aug-07 03:00 0.799053512005 -6.3981669 2095-Aug-07 06:00 0.798594911096 -6.3060565 2095-Aug-07 09:00 0.798142968043 -6.2137311 2095-Aug-07 12:00 0.797697698273 -6.1211934 2095-Aug-07 15:00 0.797259117019 -6.0284459 2095-Aug-07 18:00 0.796827239327 -5.9354914 2095-Aug-07 21:00 0.796402080047 -5.8423325 2095-Aug-08 00:00 0.795983653834 -5.7489720 2095-Aug-08 03:00 0.795571975148 -5.6554126 2095-Aug-08 06:00 0.795167058245 -5.5616570 2095-Aug-08 09:00 0.794768917184 -5.4677082 2095-Aug-08 12:00 0.794377565818 -5.3735689 2095-Aug-08 15:00 0.793993017793 -5.2792419 2095-Aug-08 18:00 0.793615286549 -5.1847303 2095-Aug-08 21:00 0.793244385318 -5.0900368 2095-Aug-09 00:00 0.792880327118 -4.9951645 2095-Aug-09 03:00 0.792523124753 -4.9001163 2095-Aug-09 06:00 0.792172790815 -4.8048952 2095-Aug-09 09:00 0.791829337676 -4.7095042 2095-Aug-09 12:00 0.791492777490 -4.6139463 2095-Aug-09 15:00 0.791163122189 -4.5182247 2095-Aug-09 18:00 0.790840383484 -4.4223425 2095-Aug-09 21:00 0.790524572861 -4.3263027 2095-Aug-10 00:00 0.790215701580 -4.2301084 2095-Aug-10 03:00 0.789913780672 -4.1337630 2095-Aug-10 06:00 0.789618820941 -4.0372695 2095-Aug-10 09:00 0.789330832958 -3.9406311 2095-Aug-10 12:00 0.789049827061 -3.8438512 2095-Aug-10 15:00 0.788775813355 -3.7469329 2095-Aug-10 18:00 0.788508801708 -3.6498796 2095-Aug-10 21:00 0.788248801752 -3.5526944 2095-Aug-11 00:00 0.787995822879 -3.4553809 2095-Aug-11 03:00 0.787749874241 -3.3579422 2095-Aug-11 06:00 0.787510964748 -3.2603817 2095-Aug-11 09:00 0.787279103069 -3.1627029 2095-Aug-11 12:00 0.787054297624 -3.0649091 2095-Aug-11 15:00 0.786836556593 -2.9670037 2095-Aug-11 18:00 0.786625887904 -2.8689901 2095-Aug-11 21:00 0.786422299240 -2.7708719 2095-Aug-12 00:00 0.786225798032 -2.6726524 2095-Aug-12 03:00 0.786036391463 -2.5743351 2095-Aug-12 06:00 0.785854086463 -2.4759237 2095-Aug-12 09:00 0.785678889708 -2.3774214 2095-Aug-12 12:00 0.785510807621 -2.2788319 2095-Aug-12 15:00 0.785349846372 -2.1801587 2095-Aug-12 18:00 0.785196011872 -2.0814054 2095-Aug-12 21:00 0.785049309776 -1.9825755 2095-Aug-13 00:00 0.784909745483 -1.8836727 2095-Aug-13 03:00 0.784777324131 -1.7847003 2095-Aug-13 06:00 0.784652050600 -1.6856622 2095-Aug-13 09:00 0.784533929510 -1.5865619 2095-Aug-13 12:00 0.784422965219 -1.4874030 2095-Aug-13 15:00 0.784319161824 -1.3881891 2095-Aug-13 18:00 0.784222523160 -1.2889239 2095-Aug-13 21:00 0.784133052798 -1.1896110 2095-Aug-14 00:00 0.784050754047 -1.0902541 2095-Aug-14 03:00 0.783975629951 -0.9908569 2095-Aug-14 06:00 0.783907683288 -0.8914229 2095-Aug-14 09:00 0.783846916575 -0.7919559 2095-Aug-14 12:00 0.783793332061 -0.6924596 2095-Aug-14 15:00 0.783746931728 -0.5929376 2095-Aug-14 18:00 0.783707717296 -0.4933936 2095-Aug-14 21:00 0.783675690214 -0.3938314 2095-Aug-15 00:00 0.783650851668 -0.2942545 2095-Aug-15 03:00 0.783633202576 -0.1946667 2095-Aug-15 06:00 0.783622743588 -0.0950718 2095-Aug-15 09:00 0.783619475090 0.0045267 2095-Aug-15 12:00 0.783623397197 0.1041249 2095-Aug-15 15:00 0.783634509761 0.2037193 2095-Aug-15 18:00 0.783652812363 0.3033061 2095-Aug-15 21:00 0.783678304320 0.4028816 2095-Aug-16 00:00 0.783710984680 0.5024421 2095-Aug-16 03:00 0.783750852227 0.6019840 2095-Aug-16 06:00 0.783797905475 0.7015034 2095-Aug-16 09:00 0.783852142675 0.8009968 2095-Aug-16 12:00 0.783913561810 0.9004605 2095-Aug-16 15:00 0.783982160597 0.9998908 2095-Aug-16 18:00 0.784057936489 1.0992840 2095-Aug-16 21:00 0.784140886674 1.1986364 2095-Aug-17 00:00 0.784231008074 1.2979444 2095-Aug-17 03:00 0.784328297350 1.3972044 2095-Aug-17 06:00 0.784432750896 1.4964126 2095-Aug-17 09:00 0.784544364846 1.5955655 2095-Aug-17 12:00 0.784663135071 1.6946595 2095-Aug-17 15:00 0.784789057178 1.7936908 2095-Aug-17 18:00 0.784922126518 1.8926560 2095-Aug-17 21:00 0.785062338177 1.9915514 2095-Aug-18 00:00 0.785209686985 2.0903734 2095-Aug-18 03:00 0.785364167512 2.1891184 2095-Aug-18 06:00 0.785525774071 2.2877829 2095-Aug-18 09:00 0.785694500717 2.3863634 2095-Aug-18 12:00 0.785870341251 2.4848563 2095-Aug-18 15:00 0.786053289218 2.5832580 2095-Aug-18 18:00 0.786243337909 2.6815651 2095-Aug-18 21:00 0.786440480364 2.7797741 2095-Aug-19 00:00 0.786644709370 2.8778815 2095-Aug-19 03:00 0.786856017462 2.9758838 2095-Aug-19 06:00 0.787074396929 3.0737776 2095-Aug-19 09:00 0.787299839809 3.1715595 2095-Aug-19 12:00 0.787532337895 3.2692260 2095-Aug-19 15:00 0.787771882734 3.3667738 2095-Aug-19 18:00 0.788018465628 3.4641995 2095-Aug-19 21:00 0.788272077637 3.5614997 2095-Aug-20 00:00 0.788532709578 3.6586711 2095-Aug-20 03:00 0.788800352029 3.7557104 2095-Aug-20 06:00 0.789074995330 3.8526143 2095-Aug-20 09:00 0.789356629582 3.9493795 2095-Aug-20 12:00 0.789645244651 4.0460027 2095-Aug-20 15:00 0.789940830171 4.1424808 2095-Aug-20 18:00 0.790243375540 4.2388105 2095-Aug-20 21:00 0.790552869927 4.3349886 2095-Aug-21 00:00 0.790869302272 4.4310120 2095-Aug-21 03:00 0.791192661286 4.5268775 2095-Aug-21 06:00 0.791522935456 4.6225820 2095-Aug-21 09:00 0.791860113043 4.7181225 2095-Aug-21 12:00 0.792204182086 4.8134957 2095-Aug-21 15:00 0.792555130404 4.9086988 2095-Aug-21 18:00 0.792912945597 5.0037287 2095-Aug-21 21:00 0.793277615048 5.0985824 2095-Aug-22 00:00 0.793649125925 5.1932568 2095-Aug-22 03:00 0.794027465181 5.2877492 2095-Aug-22 06:00 0.794412619562 5.3820566 2095-Aug-22 09:00 0.794804575599 5.4761760 2095-Aug-22 12:00 0.795203319620 5.5701047 2095-Aug-22 15:00 0.795608837746 5.6638397 2095-Aug-22 18:00 0.796021115895 5.7573784 2095-Aug-22 21:00 0.796440139782 5.8507178 2095-Aug-23 00:00 0.796865894925 5.9438554 2095-Aug-23 03:00 0.797298366643 6.0367883 2095-Aug-23 06:00 0.797737540060 6.1295138 2095-Aug-23 09:00 0.798183400109 6.2220294 2095-Aug-23 12:00 0.798635931529 6.3143323 2095-Aug-23 15:00 0.799095118873 6.4064201 2095-Aug-23 18:00 0.799560946504 6.4982900 2095-Aug-23 21:00 0.800033398604 6.5899396 2095-Aug-24 00:00 0.800512459171 6.6813663 2095-Aug-24 03:00 0.800998112024 6.7725677 2095-Aug-24 06:00 0.801490340801 6.8635414 2095-Aug-24 09:00 0.801989128968 6.9542848 2095-Aug-24 12:00 0.802494459817 7.0447957 2095-Aug-24 15:00 0.803006316468 7.1350717 2095-Aug-24 18:00 0.803524681871 7.2251104 2095-Aug-24 21:00 0.804049538813 7.3149095 2095-Aug-25 00:00 0.804580869913 7.4044669 2095-Aug-25 03:00 0.805118657630 7.4937802 2095-Aug-25 06:00 0.805662884263 7.5828474 2095-Aug-25 09:00 0.806213531954 7.6716661 2095-Aug-25 12:00 0.806770582689 7.7602343 2095-Aug-25 15:00 0.807334018303 7.8485499 2095-Aug-25 18:00 0.807903820479 7.9366108 2095-Aug-25 21:00 0.808479970753 8.0244150 2095-Aug-26 00:00 0.809062450516 8.1119605 2095-Aug-26 03:00 0.809651241013 8.1992453 2095-Aug-26 06:00 0.810246323352 8.2862675 2095-Aug-26 09:00 0.810847678499 8.3730251 2095-Aug-26 12:00 0.811455287286 8.4595164 2095-Aug-26 15:00 0.812069130411 8.5457395 2095-Aug-26 18:00 0.812689188439 8.6316925 2095-Aug-26 21:00 0.813315441809 8.7173737 2095-Aug-27 00:00 0.813947870830 8.8027814 2095-Aug-27 03:00 0.814586455689 8.8879139 2095-Aug-27 06:00 0.815231176450 8.9727694 2095-Aug-27 09:00 0.815882013059 9.0573464 2095-Aug-27 12:00 0.816538945342 9.1416432 2095-Aug-27 15:00 0.817201953014 9.2256583 2095-Aug-27 18:00 0.817871015674 9.3093901 2095-Aug-27 21:00 0.818546112814 9.3928372 2095-Aug-28 00:00 0.819227223815 9.4759979 2095-Aug-28 03:00 0.819914327957 9.5588710 2095-Aug-28 06:00 0.820607404413 9.6414550 2095-Aug-28 09:00 0.821306432258 9.7237485 2095-Aug-28 12:00 0.822011390467 9.8057502 2095-Aug-28 15:00 0.822722257921 9.8874587 2095-Aug-28 18:00 0.823439013406 9.9688728 2095-Aug-28 21:00 0.824161635617 10.0499912 2095-Aug-29 00:00 0.824890103160 10.1308128 2095-Aug-29 03:00 0.825624394555 10.2113363 2095-Aug-29 06:00 0.826364488238 10.2915605 2095-Aug-29 09:00 0.827110362561 10.3714844 2095-Aug-29 12:00 0.827861995798 10.4511069 2095-Aug-29 15:00 0.828619366145 10.5304269 2095-Aug-29 18:00 0.829382451724 10.6094434 2095-Aug-29 21:00 0.830151230581 10.6881554 2095-Aug-30 00:00 0.830925680694 10.7665619 2095-Aug-30 03:00 0.831705779973 10.8446620 2095-Aug-30 06:00 0.832491506258 10.9224547 2095-Aug-30 09:00 0.833282837330 10.9999393 2095-Aug-30 12:00 0.834079750904 11.0771149 2095-Aug-30 15:00 0.834882224638 11.1539807 2095-Aug-30 18:00 0.835690236130 11.2305358 2095-Aug-30 21:00 0.836503762926 11.3067796 2095-Aug-31 00:00 0.837322782517 11.3827112 $$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 = 'DES=12P;CAP' START_TIME = '2095-Aug-01' STOP_TIME = '2095-Aug-31' STEP_SIZE = '3 hours' QUANTITIES = '19'