******************************************************************************* JPL/HORIZONS Nishimura (C/2023 P1) 2024-May-11 18:01:00 Rec #:90004781 (+COV) Soln.date: 2024-May-07_15:44:21 # obs: 630 (2023-2024) IAU76/J2000 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs): EPOCH= 2460193.5 ! 2023-Sep-06.0000000 (TDB) RMSW= n.a. EC= .9960991094572224 QR= .2251522435449587 TP= 2460205.1414425517 OM= 66.83455118493148 W= 116.29794086491 IN= 132.4763986271801 A= 57.71816488463633 MA= 359.9738337129444 ADIST= 115.2111775257277 PER= 438.50744780694 N= .002247684 ANGMOM= .011532159 DAN= .80443 DDN= .31182 L= 300.6372531 B= 41.3930063 MOID= .0786921 TP= 2023-Sep-17.6414425517 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= n.a. M1= 12.2 M2= n.a. k1= 8.25 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= -8.001244068146E-9 A2= -5.994500219822E-10 A3= 0. Standard model: ALN= .1112620426 NK= 4.6142 NM= 2.15 NN= 5.093 R0= 2.808 COMET comments 1: soln ref.= JPL#26, data arc: 2023-01-19 to 2024-05-05 2: k1=8.25; ******************************************************************************* ******************************************************************************* Ephemeris / WWW_USER Sat May 11 18:01:00 2024 Pasadena, USA / Horizons ******************************************************************************* Target body name: Nishimura (C/2023 P1) {source: JPL#26} Center body name: Sun (10) {source: DE441} Center-site name: BODYCENTRIC ******************************************************************************* Start time : A.D. 2431-Mar-01 00:00:00.0000 UT Stop time : A.D. 2431-Mar-20 00:00:00.0000 UT Step-size : 120 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.240510.p240803 EOP coverage : DATA-BASED 1962-JAN-20 TO 2024-MAY-10. PREDICTS-> 2024-AUG-02 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= 2460193.5 ! 2023-Sep-06.0000000 (TDB) RMSW= n.a. EC= .9960991094572224 QR= .2251522435449587 TP= 2460205.1414425517 OM= 66.83455118493148 W= 116.29794086491 IN= 132.4763986271801 Equivalent ICRF heliocentric cartesian coordinates (au, au/d): X= 2.817264110376738E-01 Y= 2.307120277255170E-01 Z= 2.606771922674756E-01 VX=-6.292607067338616E-03 VY=-3.523859984840284E-02 VZ=-5.921126030100693E-03 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= n.a. M1= 12.2 M2= n.a. k1= 8.25 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= -8.001244068146E-9 A2= -5.994500219822E-10 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 2431-Mar-01 00:00:00.000 8.062370528139 14.0564257 14.2766834 14.2766823 2431-Mar-01 03:48:00.000 8.063655805865 14.0552452 14.2754514 14.2754504 2431-Mar-01 07:36:00.000 8.064940975666 14.0540650 14.2742199 14.2742188 2431-Mar-01 11:24:00.000 8.066226037575 14.0528852 14.2729887 14.2729877 2431-Mar-01 15:12:00.000 8.067510991625 14.0517058 14.2717580 14.2717569 2431-Mar-01 19:00:00.000 8.068795837851 14.0505268 14.2705276 14.2705265 2431-Mar-01 22:48:00.000 8.070080576284 14.0493481 14.2692976 14.2692965 2431-Mar-02 02:36:00.000 8.071365206959 14.0481697 14.2680680 14.2680669 2431-Mar-02 06:24:00.000 8.072649729908 14.0469918 14.2668387 14.2668377 2431-Mar-02 10:12:00.000 8.073934145165 14.0458142 14.2656099 14.2656088 2431-Mar-02 14:00:00.000 8.075218452762 14.0446369 14.2643815 14.2643804 2431-Mar-02 17:48:00.000 8.076502652734 14.0434601 14.2631534 14.2631524 2431-Mar-02 21:36:00.000 8.077786745114 14.0422836 14.2619258 14.2619247 2431-Mar-03 01:24:00.000 8.079070729933 14.0411074 14.2606985 14.2606974 2431-Mar-03 05:12:00.000 8.080354607226 14.0399316 14.2594716 14.2594705 2431-Mar-03 09:00:00.000 8.081638377026 14.0387562 14.2582451 14.2582440 2431-Mar-03 12:48:00.000 8.082922039366 14.0375811 14.2570190 14.2570179 2431-Mar-03 16:36:00.000 8.084205594277 14.0364064 14.2557932 14.2557922 2431-Mar-03 20:24:00.000 8.085489041795 14.0352321 14.2545679 14.2545668 2431-Mar-04 00:12:00.000 8.086772381952 14.0340581 14.2533429 14.2533419 2431-Mar-04 04:00:00.000 8.088055614781 14.0328845 14.2521183 14.2521173 2431-Mar-04 07:48:00.000 8.089338740314 14.0317112 14.2508942 14.2508931 2431-Mar-04 11:36:00.000 8.090621758586 14.0305383 14.2496704 14.2496693 2431-Mar-04 15:24:00.000 8.091904669627 14.0293658 14.2484469 14.2484459 2431-Mar-04 19:12:00.000 8.093187473473 14.0281936 14.2472239 14.2472228 2431-Mar-04 23:00:00.000 8.094470170155 14.0270218 14.2460013 14.2460002 2431-Mar-05 02:48:00.000 8.095752759708 14.0258504 14.2447790 14.2447779 2431-Mar-05 06:36:00.000 8.097035242162 14.0246793 14.2435571 14.2435560 2431-Mar-05 10:24:00.000 8.098317617551 14.0235085 14.2423356 14.2423345 2431-Mar-05 14:12:00.000 8.099599885909 14.0223381 14.2411145 14.2411134 2431-Mar-05 18:00:00.000 8.100882047268 14.0211681 14.2398938 14.2398927 2431-Mar-05 21:48:00.000 8.102164101661 14.0199985 14.2386734 14.2386724 2431-Mar-06 01:36:00.000 8.103446049120 14.0188292 14.2374535 14.2374524 2431-Mar-06 05:24:00.000 8.104727889679 14.0176602 14.2362339 14.2362328 2431-Mar-06 09:12:00.000 8.106009623370 14.0164916 14.2350147 14.2350136 2431-Mar-06 13:00:00.000 8.107291250226 14.0153234 14.2337959 14.2337948 2431-Mar-06 16:48:00.000 8.108572770280 14.0141555 14.2325775 14.2325764 2431-Mar-06 20:36:00.000 8.109854183564 14.0129880 14.2313594 14.2313584 2431-Mar-07 00:24:00.000 8.111135490111 14.0118209 14.2301417 14.2301407 2431-Mar-07 04:12:00.000 8.112416689954 14.0106541 14.2289245 14.2289234 2431-Mar-07 08:00:00.000 8.113697783125 14.0094876 14.2277076 14.2277065 2431-Mar-07 11:48:00.000 8.114978769658 14.0083216 14.2264910 14.2264900 2431-Mar-07 15:36:00.000 8.116259649584 14.0071558 14.2252749 14.2252738 2431-Mar-07 19:24:00.000 8.117540422937 14.0059905 14.2240592 14.2240581 2431-Mar-07 23:12:00.000 8.118821089748 14.0048255 14.2228438 14.2228427 2431-Mar-08 03:00:00.000 8.120101650052 14.0036608 14.2216288 14.2216277 2431-Mar-08 06:48:00.000 8.121382103879 14.0024965 14.2204142 14.2204131 2431-Mar-08 10:36:00.000 8.122662451263 14.0013326 14.2191999 14.2191989 2431-Mar-08 14:24:00.000 8.123942692236 14.0001690 14.2179861 14.2179850 2431-Mar-08 18:12:00.000 8.125222826831 13.9990057 14.2167726 14.2167715 2431-Mar-08 22:00:00.000 8.126502855080 13.9978429 14.2155595 14.2155584 2431-Mar-09 01:48:00.000 8.127782777016 13.9966803 14.2143468 14.2143457 2431-Mar-09 05:36:00.000 8.129062592670 13.9955182 14.2131345 14.2131334 2431-Mar-09 09:24:00.000 8.130342302077 13.9943564 14.2119225 14.2119214 2431-Mar-09 13:12:00.000 8.131621905267 13.9931949 14.2107109 14.2107099 2431-Mar-09 17:00:00.000 8.132901402274 13.9920338 14.2094997 14.2094987 2431-Mar-09 20:48:00.000 8.134180793130 13.9908731 14.2082889 14.2082878 2431-Mar-10 00:36:00.000 8.135460077867 13.9897127 14.2070785 14.2070774 2431-Mar-10 04:24:00.000 8.136739256517 13.9885526 14.2058684 14.2058673 2431-Mar-10 08:12:00.000 8.138018329114 13.9873929 14.2046587 14.2046576 2431-Mar-10 12:00:00.000 8.139297295688 13.9862336 14.2034494 14.2034483 2431-Mar-10 15:48:00.000 8.140576156273 13.9850746 14.2022405 14.2022394 2431-Mar-10 19:36:00.000 8.141854910901 13.9839160 14.2010319 14.2010309 2431-Mar-10 23:24:00.000 8.143133559604 13.9827577 14.1998237 14.1998227 2431-Mar-11 03:12:00.000 8.144412102415 13.9815998 14.1986159 14.1986149 2431-Mar-11 07:00:00.000 8.145690539365 13.9804422 14.1974085 14.1974074 2431-Mar-11 10:48:00.000 8.146968870486 13.9792850 14.1962015 14.1962004 2431-Mar-11 14:36:00.000 8.148247095812 13.9781281 14.1949948 14.1949937 2431-Mar-11 18:24:00.000 8.149525215374 13.9769716 14.1937885 14.1937874 2431-Mar-11 22:12:00.000 8.150803229205 13.9758155 14.1925826 14.1925815 2431-Mar-12 02:00:00.000 8.152081137336 13.9746596 14.1913770 14.1913760 2431-Mar-12 05:48:00.000 8.153358939799 13.9735042 14.1901719 14.1901708 2431-Mar-12 09:36:00.000 8.154636636628 13.9723491 14.1889671 14.1889660 2431-Mar-12 13:24:00.000 8.155914227854 13.9711943 14.1877626 14.1877616 2431-Mar-12 17:12:00.000 8.157191713508 13.9700399 14.1865586 14.1865575 2431-Mar-12 21:00:00.000 8.158469093623 13.9688859 14.1853549 14.1853539 2431-Mar-13 00:48:00.000 8.159746368232 13.9677322 14.1841516 14.1841506 2431-Mar-13 04:36:00.000 8.161023537366 13.9665788 14.1829487 14.1829477 2431-Mar-13 08:24:00.000 8.162300601057 13.9654258 14.1817462 14.1817451 2431-Mar-13 12:12:00.000 8.163577559337 13.9642731 14.1805440 14.1805429 2431-Mar-13 16:00:00.000 8.164854412238 13.9631208 14.1793422 14.1793411 2431-Mar-13 19:48:00.000 8.166131159793 13.9619689 14.1781408 14.1781397 2431-Mar-13 23:36:00.000 8.167407802032 13.9608173 14.1769397 14.1769387 2431-Mar-14 03:24:00.000 8.168684338989 13.9596660 14.1757390 14.1757380 2431-Mar-14 07:12:00.000 8.169960770695 13.9585151 14.1745387 14.1745377 2431-Mar-14 11:00:00.000 8.171237097181 13.9573646 14.1733388 14.1733377 2431-Mar-14 14:48:00.000 8.172513318480 13.9562144 14.1721392 14.1721382 2431-Mar-14 18:36:00.000 8.173789434624 13.9550645 14.1709400 14.1709390 2431-Mar-14 22:24:00.000 8.175065445644 13.9539150 14.1697412 14.1697402 2431-Mar-15 02:12:00.000 8.176341351572 13.9527658 14.1685428 14.1685417 2431-Mar-15 06:00:00.000 8.177617152441 13.9516170 14.1673447 14.1673436 2431-Mar-15 09:48:00.000 8.178892848282 13.9504685 14.1661470 14.1661459 2431-Mar-15 13:36:00.000 8.180168439126 13.9493204 14.1649496 14.1649486 2431-Mar-15 17:24:00.000 8.181443925005 13.9481726 14.1637527 14.1637516 2431-Mar-15 21:12:00.000 8.182719305952 13.9470252 14.1625561 14.1625550 2431-Mar-16 01:00:00.000 8.183994581998 13.9458781 14.1613599 14.1613588 2431-Mar-16 04:48:00.000 8.185269753174 13.9447314 14.1601640 14.1601630 2431-Mar-16 08:36:00.000 8.186544819512 13.9435850 14.1589685 14.1589675 2431-Mar-16 12:24:00.000 8.187819781045 13.9424390 14.1577734 14.1577724 2431-Mar-16 16:12:00.000 8.189094637803 13.9412933 14.1565787 14.1565776 2431-Mar-16 20:00:00.000 8.190369389819 13.9401479 14.1553843 14.1553832 2431-Mar-16 23:48:00.000 8.191644037123 13.9390029 14.1541903 14.1541892 2431-Mar-17 03:36:00.000 8.192918579748 13.9378583 14.1529967 14.1529956 2431-Mar-17 07:24:00.000 8.194193017726 13.9367139 14.1518034 14.1518023 2431-Mar-17 11:12:00.000 8.195467351087 13.9355700 14.1506105 14.1506094 2431-Mar-17 15:00:00.000 8.196741579863 13.9344264 14.1494180 14.1494169 2431-Mar-17 18:48:00.000 8.198015704086 13.9332831 14.1482258 14.1482248 2431-Mar-17 22:36:00.000 8.199289723787 13.9321401 14.1470340 14.1470330 2431-Mar-18 02:24:00.000 8.200563638998 13.9309976 14.1458426 14.1458415 2431-Mar-18 06:12:00.000 8.201837449751 13.9298553 14.1446515 14.1446505 2431-Mar-18 10:00:00.000 8.203111156076 13.9287134 14.1434608 14.1434598 2431-Mar-18 13:48:00.000 8.204384758006 13.9275719 14.1422705 14.1422695 2431-Mar-18 17:36:00.000 8.205658255571 13.9264306 14.1410805 14.1410795 2431-Mar-18 21:24:00.000 8.206931648803 13.9252898 14.1398910 14.1398899 2431-Mar-19 01:12:00.000 8.208204937734 13.9241493 14.1387017 14.1387007 2431-Mar-19 05:00:00.000 8.209478122395 13.9230091 14.1375129 14.1375118 2431-Mar-19 08:48:00.000 8.210751202817 13.9218692 14.1363244 14.1363233 2431-Mar-19 12:36:00.000 8.212024179032 13.9207297 14.1351363 14.1351352 2431-Mar-19 16:24:00.000 8.213297051070 13.9195906 14.1339485 14.1339475 2431-Mar-19 20:12:00.000 8.214569818964 13.9184518 14.1327611 14.1327601 2431-Mar-20 00:00:00.000 8.215842482745 13.9173133 14.1315741 14.1315730 $$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 = '2023 P1' START_TIME = '2431-Mar-01' STOP_TIME = '2431-Mar-20' STEP_SIZE = '120' QUANTITIES = '19,22' CENTER = '@Sun'