******************************************************************************* JPL/HORIZONS 12P/Pons-Brooks 2024-May-02 06:18:49 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 06:18:49 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. 2024-Apr-21 00:00:00.0000 UT Stop time : A.D. 2024-Apr-22 00:00:00.0000 UT Step-size : 10 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 VmagSn VmagOb *************************************************************************** $$SOE 2024-Apr-21 00:00 0.780782312195 -0.1062659 47.1257598 54.3663690 2024-Apr-21 00:10 0.780781897160 -0.1006943 47.1257726 54.3652448 2024-Apr-21 00:20 0.780781504472 -0.0951227 47.1257847 54.3641204 2024-Apr-21 00:30 0.780781134130 -0.0895511 47.1257961 54.3629960 2024-Apr-21 00:40 0.780780786134 -0.0839795 47.1258068 54.3618714 2024-Apr-21 00:50 0.780780460485 -0.0784079 47.1258169 54.3607467 2024-Apr-21 01:00 0.780780157182 -0.0728362 47.1258262 54.3596219 2024-Apr-21 01:10 0.780779876226 -0.0672646 47.1258348 54.3584970 2024-Apr-21 01:20 0.780779617617 -0.0616929 47.1258428 54.3573720 2024-Apr-21 01:30 0.780779381354 -0.0561213 47.1258501 54.3562469 2024-Apr-21 01:40 0.780779167438 -0.0505496 47.1258566 54.3551217 2024-Apr-21 01:50 0.780778975868 -0.0449780 47.1258625 54.3539963 2024-Apr-21 02:00 0.780778806645 -0.0394063 47.1258677 54.3528709 2024-Apr-21 02:10 0.780778659769 -0.0338346 47.1258722 54.3517454 2024-Apr-21 02:20 0.780778535240 -0.0282629 47.1258761 54.3506197 2024-Apr-21 02:30 0.780778433057 -0.0226912 47.1258792 54.3494940 2024-Apr-21 02:40 0.780778353221 -0.0171196 47.1258816 54.3483681 2024-Apr-21 02:50 0.780778295732 -0.0115479 47.1258834 54.3472421 2024-Apr-21 03:00 0.780778260590 -0.0059762 47.1258844 54.3461161 2024-Apr-21 03:10 0.780778247794 -0.0004045 47.1258848 54.3449899 2024-Apr-21 03:20 0.780778257345 0.0051672 47.1258845 54.3438636 2024-Apr-21 03:30 0.780778289243 0.0107389 47.1258835 54.3427372 2024-Apr-21 03:40 0.780778343488 0.0163106 47.1258817 54.3416107 2024-Apr-21 03:50 0.780778420079 0.0218823 47.1258794 54.3404841 2024-Apr-21 04:00 0.780778519017 0.0274540 47.1258763 54.3393574 2024-Apr-21 04:10 0.780778640302 0.0330256 47.1258725 54.3382306 2024-Apr-21 04:20 0.780778783933 0.0385973 47.1258680 54.3371037 2024-Apr-21 04:30 0.780778949912 0.0441690 47.1258629 54.3359767 2024-Apr-21 04:40 0.780779138237 0.0497407 47.1258570 54.3348496 2024-Apr-21 04:50 0.780779348908 0.0553123 47.1258505 54.3337224 2024-Apr-21 05:00 0.780779581927 0.0608840 47.1258433 54.3325951 2024-Apr-21 05:10 0.780779837292 0.0664556 47.1258354 54.3314676 2024-Apr-21 05:20 0.780780115003 0.0720273 47.1258268 54.3303401 2024-Apr-21 05:30 0.780780415061 0.0775989 47.1258175 54.3292125 2024-Apr-21 05:40 0.780780737466 0.0831705 47.1258075 54.3280848 2024-Apr-21 05:50 0.780781082217 0.0887421 47.1257968 54.3269569 2024-Apr-21 06:00 0.780781449314 0.0943138 47.1257854 54.3258290 2024-Apr-21 06:10 0.780781838758 0.0998853 47.1257734 54.3247010 2024-Apr-21 06:20 0.780782250548 0.1054569 47.1257606 54.3235728 2024-Apr-21 06:30 0.780782684685 0.1110285 47.1257472 54.3224446 2024-Apr-21 06:40 0.780783141168 0.1166001 47.1257331 54.3213163 2024-Apr-21 06:50 0.780783619997 0.1221716 47.1257183 54.3201878 2024-Apr-21 07:00 0.780784121172 0.1277431 47.1257028 54.3190593 2024-Apr-21 07:10 0.780784644693 0.1333146 47.1256866 54.3179307 2024-Apr-21 07:20 0.780785190560 0.1388861 47.1256697 54.3168019 2024-Apr-21 07:30 0.780785758773 0.1444576 47.1256521 54.3156731 2024-Apr-21 07:40 0.780786349333 0.1500291 47.1256338 54.3145442 2024-Apr-21 07:50 0.780786962238 0.1556005 47.1256149 54.3134151 2024-Apr-21 08:00 0.780787597488 0.1611720 47.1255952 54.3122860 2024-Apr-21 08:10 0.780788255085 0.1667434 47.1255749 54.3111568 2024-Apr-21 08:20 0.780788935027 0.1723148 47.1255539 54.3100275 2024-Apr-21 08:30 0.780789637314 0.1778861 47.1255322 54.3088980 2024-Apr-21 08:40 0.780790361947 0.1834575 47.1255098 54.3077685 2024-Apr-21 08:50 0.780791108926 0.1890288 47.1254867 54.3066389 2024-Apr-21 09:00 0.780791878249 0.1946001 47.1254629 54.3055092 2024-Apr-21 09:10 0.780792669918 0.2001714 47.1254384 54.3043794 2024-Apr-21 09:20 0.780793483932 0.2057427 47.1254132 54.3032495 2024-Apr-21 09:30 0.780794320291 0.2113139 47.1253874 54.3021195 2024-Apr-21 09:40 0.780795178995 0.2168851 47.1253609 54.3009894 2024-Apr-21 09:50 0.780796060043 0.2224563 47.1253336 54.2998592 2024-Apr-21 10:00 0.780796963437 0.2280275 47.1253057 54.2987289 2024-Apr-21 10:10 0.780797889175 0.2335986 47.1252771 54.2975985 2024-Apr-21 10:20 0.780798837257 0.2391697 47.1252478 54.2964680 2024-Apr-21 10:30 0.780799807684 0.2447408 47.1252178 54.2953375 2024-Apr-21 10:40 0.780800800455 0.2503119 47.1251871 54.2942068 2024-Apr-21 10:50 0.780801815570 0.2558829 47.1251557 54.2930760 2024-Apr-21 11:00 0.780802853030 0.2614539 47.1251237 54.2919452 2024-Apr-21 11:10 0.780803912833 0.2670249 47.1250909 54.2908142 2024-Apr-21 11:20 0.780804994980 0.2725958 47.1250575 54.2896832 2024-Apr-21 11:30 0.780806099471 0.2781667 47.1250233 54.2885520 2024-Apr-21 11:40 0.780807226305 0.2837376 47.1249885 54.2874208 2024-Apr-21 11:50 0.780808375483 0.2893084 47.1249530 54.2862895 2024-Apr-21 12:00 0.780809547004 0.2948792 47.1249168 54.2851581 2024-Apr-21 12:10 0.780810740868 0.3004500 47.1248799 54.2840266 2024-Apr-21 12:20 0.780811957075 0.3060207 47.1248423 54.2828950 2024-Apr-21 12:30 0.780813195625 0.3115914 47.1248040 54.2817633 2024-Apr-21 12:40 0.780814456518 0.3171621 47.1247651 54.2806315 2024-Apr-21 12:50 0.780815739753 0.3227327 47.1247254 54.2794996 2024-Apr-21 13:00 0.780817045331 0.3283033 47.1246851 54.2783676 2024-Apr-21 13:10 0.780818373251 0.3338738 47.1246441 54.2772356 2024-Apr-21 13:20 0.780819723513 0.3394444 47.1246023 54.2761034 2024-Apr-21 13:30 0.780821096117 0.3450148 47.1245599 54.2749712 2024-Apr-21 13:40 0.780822491063 0.3505853 47.1245168 54.2738389 2024-Apr-21 13:50 0.780823908350 0.3561557 47.1244730 54.2727065 2024-Apr-21 14:00 0.780825347979 0.3617260 47.1244285 54.2715739 2024-Apr-21 14:10 0.780826809950 0.3672963 47.1243834 54.2704413 2024-Apr-21 14:20 0.780828294261 0.3728666 47.1243375 54.2693087 2024-Apr-21 14:30 0.780829800914 0.3784368 47.1242910 54.2681759 2024-Apr-21 14:40 0.780831329907 0.3840070 47.1242437 54.2670430 2024-Apr-21 14:50 0.780832881241 0.3895771 47.1241958 54.2659101 2024-Apr-21 15:00 0.780834454915 0.3951472 47.1241472 54.2647770 2024-Apr-21 15:10 0.780836050930 0.4007173 47.1240979 54.2636439 2024-Apr-21 15:20 0.780837669284 0.4062873 47.1240479 54.2625107 2024-Apr-21 15:30 0.780839309979 0.4118572 47.1239972 54.2613774 2024-Apr-21 15:40 0.780840973013 0.4174271 47.1239458 54.2602440 2024-Apr-21 15:50 0.780842658387 0.4229970 47.1238937 54.2591105 2024-Apr-21 16:00 0.780844366100 0.4285668 47.1238410 54.2579769 2024-Apr-21 16:10 0.780846096152 0.4341365 47.1237875 54.2568433 2024-Apr-21 16:20 0.780847848544 0.4397062 47.1237334 54.2557096 2024-Apr-21 16:30 0.780849623273 0.4452759 47.1236786 54.2545757 2024-Apr-21 16:40 0.780851420342 0.4508455 47.1236231 54.2534418 2024-Apr-21 16:50 0.780853239748 0.4564150 47.1235669 54.2523078 2024-Apr-21 17:00 0.780855081493 0.4619845 47.1235100 54.2511738 2024-Apr-21 17:10 0.780856945576 0.4675540 47.1234524 54.2500396 2024-Apr-21 17:20 0.780858831996 0.4731234 47.1233941 54.2489053 2024-Apr-21 17:30 0.780860740754 0.4786927 47.1233352 54.2477710 2024-Apr-21 17:40 0.780862671849 0.4842620 47.1232755 54.2466366 2024-Apr-21 17:50 0.780864625281 0.4898312 47.1232152 54.2455021 2024-Apr-21 18:00 0.780866601049 0.4954004 47.1231541 54.2443675 2024-Apr-21 18:10 0.780868599155 0.5009695 47.1230924 54.2432328 2024-Apr-21 18:20 0.780870619596 0.5065386 47.1230300 54.2420981 2024-Apr-21 18:30 0.780872662374 0.5121075 47.1229669 54.2409632 2024-Apr-21 18:40 0.780874727487 0.5176765 47.1229031 54.2398283 2024-Apr-21 18:50 0.780876814936 0.5232454 47.1228386 54.2386933 2024-Apr-21 19:00 0.780878924721 0.5288142 47.1227735 54.2375582 2024-Apr-21 19:10 0.780881056840 0.5343829 47.1227076 54.2364231 2024-Apr-21 19:20 0.780883211295 0.5399516 47.1226411 54.2352878 2024-Apr-21 19:30 0.780885388084 0.5455202 47.1225738 54.2341525 2024-Apr-21 19:40 0.780887587207 0.5510888 47.1225059 54.2330171 2024-Apr-21 19:50 0.780889808665 0.5566573 47.1224373 54.2318816 2024-Apr-21 20:00 0.780892052456 0.5622257 47.1223680 54.2307460 2024-Apr-21 20:10 0.780894318581 0.5677941 47.1222980 54.2296104 2024-Apr-21 20:20 0.780896607040 0.5733624 47.1222273 54.2284746 2024-Apr-21 20:30 0.780898917831 0.5789307 47.1221560 54.2273388 2024-Apr-21 20:40 0.780901250955 0.5844988 47.1220839 54.2262029 2024-Apr-21 20:50 0.780903606412 0.5900669 47.1220112 54.2250669 2024-Apr-21 21:00 0.780905984201 0.5956350 47.1219377 54.2239309 2024-Apr-21 21:10 0.780908384322 0.6012029 47.1218636 54.2227948 2024-Apr-21 21:20 0.780910806775 0.6067708 47.1217888 54.2216585 2024-Apr-21 21:30 0.780913251559 0.6123387 47.1217133 54.2205223 2024-Apr-21 21:40 0.780915718674 0.6179064 47.1216371 54.2193859 2024-Apr-21 21:50 0.780918208120 0.6234741 47.1215602 54.2182494 2024-Apr-21 22:00 0.780920719897 0.6290417 47.1214826 54.2171129 2024-Apr-21 22:10 0.780923254004 0.6346093 47.1214044 54.2159763 2024-Apr-21 22:20 0.780925810441 0.6401767 47.1213254 54.2148396 2024-Apr-21 22:30 0.780928389207 0.6457441 47.1212458 54.2137029 2024-Apr-21 22:40 0.780930990303 0.6513114 47.1211655 54.2125660 2024-Apr-21 22:50 0.780933613728 0.6568787 47.1210844 54.2114291 2024-Apr-21 23:00 0.780936259482 0.6624459 47.1210027 54.2102921 2024-Apr-21 23:10 0.780938927565 0.6680129 47.1209203 54.2091551 2024-Apr-21 23:20 0.780941617975 0.6735800 47.1208373 54.2080179 2024-Apr-21 23:30 0.780944330714 0.6791469 47.1207535 54.2068807 2024-Apr-21 23:40 0.780947065780 0.6847137 47.1206690 54.2057434 2024-Apr-21 23:50 0.780949823173 0.6902805 47.1205839 54.2046061 2024-Apr-22 00:00 0.780952602893 0.6958472 47.1204980 54.2034686 $$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/hrzn_batch.txt scripts https://ssd.jpl.nasa.gov/ftp/ssd/SCRIPTS Author : Jon.D.Giorgini@jpl.nasa.gov ******************************************************************************* !$$SOF COMMAND = '90000223' START_TIME = '2024-Apr-21' STOP_TIME = '2024-Apr-22' STEP_SIZE = '10 minutes' QUANTITIES = '19,22'