******************************************************************************* JPL/HORIZONS Nishimura (C/2023 P1) 2024-May-09 07:16:41 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 Thu May 9 07:16:41 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. 2430-Jan-01 00:00:00.0000 UT Stop time : A.D. 2430-Jun-01 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.240508.p240801 EOP coverage : DATA-BASED 1962-JAN-20 TO 2024-MAY-08. PREDICTS-> 2024-JUL-31 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 2430-Jan-01 00:00:00.000 4.056618384262 19.9192954 20.5284099 20.5284093 2430-Jan-02 06:12:00.000 4.071081126960 19.8846269 20.4905098 20.4905092 2430-Jan-03 12:24:00.000 4.085518761220 19.8501878 20.4528737 20.4528730 2430-Jan-04 18:36:00.000 4.099931452869 19.8159757 20.4154982 20.4154975 2430-Jan-06 00:48:00.000 4.114319365815 19.7819878 20.3783802 20.3783796 2430-Jan-07 07:00:00.000 4.128682662080 19.7482216 20.3415167 20.3415161 2430-Jan-08 13:12:00.000 4.143021501829 19.7146745 20.3049046 20.3049039 2430-Jan-09 19:24:00.000 4.157336043397 19.6813442 20.2685409 20.2685402 2430-Jan-11 01:36:00.000 4.171626443320 19.6482280 20.2324226 20.2324220 2430-Jan-12 07:48:00.000 4.185892856361 19.6153236 20.1965469 20.1965463 2430-Jan-13 14:00:00.000 4.200135435545 19.5826286 20.1609109 20.1609103 2430-Jan-14 20:12:00.000 4.214354332177 19.5501407 20.1255119 20.1255113 2430-Jan-16 02:24:00.000 4.228549695880 19.5178575 20.0903470 20.0903464 2430-Jan-17 08:36:00.000 4.242721674621 19.4857769 20.0554137 20.0554130 2430-Jan-18 14:48:00.000 4.256870414737 19.4538965 20.0207092 20.0207085 2430-Jan-19 21:00:00.000 4.270996060969 19.4222143 19.9862309 19.9862302 2430-Jan-21 03:12:00.000 4.285098756484 19.3907280 19.9519763 19.9519756 2430-Jan-22 09:24:00.000 4.299178642908 19.3594355 19.9179429 19.9179422 2430-Jan-23 15:36:00.000 4.313235860344 19.3283349 19.8841282 19.8841275 2430-Jan-24 21:48:00.000 4.327270547402 19.2974239 19.8505297 19.8505291 2430-Jan-26 04:00:00.000 4.341282841222 19.2667008 19.8171452 19.8171445 2430-Jan-27 10:12:00.000 4.355272877491 19.2361633 19.7839721 19.7839715 2430-Jan-28 16:24:00.000 4.369240790467 19.2058097 19.7510083 19.7510076 2430-Jan-29 22:36:00.000 4.383186713001 19.1756379 19.7182514 19.7182507 2430-Jan-31 04:48:00.000 4.397110776556 19.1456461 19.6856991 19.6856984 2430-Feb-01 11:00:00.000 4.411013111222 19.1158324 19.6533492 19.6533485 2430-Feb-02 17:12:00.000 4.424893845742 19.0861949 19.6211995 19.6211989 2430-Feb-03 23:24:00.000 4.438753107527 19.0567319 19.5892480 19.5892473 2430-Feb-05 05:36:00.000 4.452591022677 19.0274416 19.5574923 19.5574917 2430-Feb-06 11:48:00.000 4.466407715997 18.9983221 19.5259306 19.5259299 2430-Feb-07 18:00:00.000 4.480203311017 18.9693717 19.4945606 19.4945599 2430-Feb-09 00:12:00.000 4.493977930010 18.9405888 19.4633804 19.4633797 2430-Feb-10 06:24:00.000 4.507731694010 18.9119716 19.4323879 19.4323872 2430-Feb-11 12:36:00.000 4.521464722829 18.8835184 19.4015812 19.4015806 2430-Feb-12 18:48:00.000 4.535177135075 18.8552277 19.3709584 19.3709577 2430-Feb-14 01:00:00.000 4.548869048169 18.8270977 19.3405174 19.3405168 2430-Feb-15 07:12:00.000 4.562540578361 18.7991270 19.3102566 19.3102559 2430-Feb-16 13:24:00.000 4.576191840748 18.7713138 19.2801739 19.2801732 2430-Feb-17 19:36:00.000 4.589822949288 18.7436567 19.2502675 19.2502669 2430-Feb-19 01:48:00.000 4.603434016821 18.7161541 19.2205357 19.2205351 2430-Feb-20 08:00:00.000 4.617025155075 18.6888045 19.1909767 19.1909761 2430-Feb-21 14:12:00.000 4.630596474692 18.6616065 19.1615887 19.1615881 2430-Feb-22 20:24:00.000 4.644148085238 18.6345585 19.1323700 19.1323694 2430-Feb-24 02:36:00.000 4.657680095216 18.6076591 19.1033189 19.1033183 2430-Feb-25 08:48:00.000 4.671192612087 18.5809069 19.0744337 19.0744331 2430-Feb-26 15:00:00.000 4.684685742276 18.5543004 19.0457127 19.0457121 2430-Feb-27 21:12:00.000 4.698159591192 18.5278383 19.0171544 19.0171538 2430-Mar-01 03:24:00.000 4.711614263242 18.5015192 18.9887571 18.9887565 2430-Mar-02 09:36:00.000 4.725049861840 18.4753418 18.9605193 18.9605187 2430-Mar-03 15:48:00.000 4.738466489426 18.4493046 18.9324393 18.9324387 2430-Mar-04 22:00:00.000 4.751864247473 18.4234065 18.9045156 18.9045150 2430-Mar-06 04:12:00.000 4.765243236506 18.3976460 18.8767468 18.8767462 2430-Mar-07 10:24:00.000 4.778603556110 18.3720220 18.8491312 18.8491306 2430-Mar-08 16:36:00.000 4.791945304945 18.3465331 18.8216675 18.8216669 2430-Mar-09 22:48:00.000 4.805268580757 18.3211781 18.7943542 18.7943536 2430-Mar-11 05:00:00.000 4.818573480392 18.2959558 18.7671898 18.7671892 2430-Mar-12 11:12:00.000 4.831860099804 18.2708649 18.7401729 18.7401723 2430-Mar-13 17:24:00.000 4.845128534069 18.2459042 18.7133021 18.7133016 2430-Mar-14 23:36:00.000 4.858378877399 18.2210726 18.6865761 18.6865755 2430-Mar-16 05:48:00.000 4.871611223147 18.1963690 18.6599935 18.6599929 2430-Mar-17 12:00:00.000 4.884825663825 18.1717920 18.6335528 18.6335523 2430-Mar-18 18:12:00.000 4.898022291108 18.1473406 18.6072529 18.6072523 2430-Mar-20 00:24:00.000 4.911201195848 18.1230138 18.5810924 18.5810918 2430-Mar-21 06:36:00.000 4.924362468088 18.0988102 18.5550700 18.5550694 2430-Mar-22 12:48:00.000 4.937506197064 18.0747290 18.5291843 18.5291838 2430-Mar-23 19:00:00.000 4.950632471221 18.0507689 18.5034343 18.5034337 2430-Mar-25 01:12:00.000 4.963741378222 18.0269289 18.4778186 18.4778180 2430-Mar-26 07:24:00.000 4.976833004957 18.0032079 18.4523359 18.4523354 2430-Mar-27 13:36:00.000 4.989907437549 17.9796050 18.4269852 18.4269846 2430-Mar-28 19:48:00.000 5.002964761369 17.9561191 18.4017651 18.4017645 2430-Mar-30 02:00:00.000 5.016005061040 17.9327490 18.3766745 18.3766739 2430-Mar-31 08:12:00.000 5.029028420449 17.9094940 18.3517123 18.3517117 2430-Apr-01 14:24:00.000 5.042034922754 17.8863529 18.3268772 18.3268766 2430-Apr-02 20:36:00.000 5.055024650388 17.8633247 18.3021681 18.3021676 2430-Apr-04 02:48:00.000 5.067997685073 17.8404085 18.2775840 18.2775834 2430-Apr-05 09:00:00.000 5.080954107826 17.8176033 18.2531236 18.2531230 2430-Apr-06 15:12:00.000 5.093893998964 17.7949082 18.2287859 18.2287853 2430-Apr-07 21:24:00.000 5.106817438112 17.7723222 18.2045698 18.2045692 2430-Apr-09 03:36:00.000 5.119724504213 17.7498443 18.1804743 18.1804737 2430-Apr-10 09:48:00.000 5.132615275534 17.7274737 18.1564981 18.1564975 2430-Apr-11 16:00:00.000 5.145489829675 17.7052095 18.1326404 18.1326398 2430-Apr-12 22:12:00.000 5.158348243580 17.6830506 18.1089001 18.1088995 2430-Apr-14 04:24:00.000 5.171190593542 17.6609964 18.0852761 18.0852755 2430-Apr-15 10:36:00.000 5.184016955219 17.6390458 18.0617675 18.0617669 2430-Apr-16 16:48:00.000 5.196827403640 17.6171981 18.0383733 18.0383727 2430-Apr-17 23:00:00.000 5.209622013216 17.5954523 18.0150925 18.0150919 2430-Apr-19 05:12:00.000 5.222400857755 17.5738077 17.9919242 17.9919235 2430-Apr-20 11:24:00.000 5.235164010463 17.5522634 17.9688674 17.9688668 2430-Apr-21 17:36:00.000 5.247911543958 17.5308187 17.9459212 17.9459206 2430-Apr-22 23:48:00.000 5.260643530277 17.5094727 17.9230847 17.9230841 2430-Apr-24 06:00:00.000 5.273360040880 17.4882247 17.9003571 17.9003564 2430-Apr-25 12:12:00.000 5.286061146658 17.4670738 17.8777372 17.8777366 2430-Apr-26 18:24:00.000 5.298746917940 17.4460193 17.8552244 17.8552238 2430-Apr-28 00:36:00.000 5.311417424490 17.4250605 17.8328177 17.8328171 2430-Apr-29 06:48:00.000 5.324072735527 17.4041965 17.8105163 17.8105157 2430-Apr-30 13:00:00.000 5.336712919714 17.3834267 17.7883192 17.7883186 2430-May-01 19:12:00.000 5.349338045173 17.3627502 17.7662257 17.7662250 2430-May-03 01:24:00.000 5.361948179489 17.3421664 17.7442348 17.7442342 2430-May-04 07:36:00.000 5.374543389712 17.3216745 17.7223458 17.7223451 2430-May-05 13:48:00.000 5.387123742365 17.3012737 17.7005577 17.7005571 2430-May-06 20:00:00.000 5.399689303450 17.2809635 17.6788699 17.6788692 2430-May-08 02:12:00.000 5.412240138451 17.2607430 17.6572814 17.6572808 2430-May-09 08:24:00.000 5.424776312341 17.2406116 17.6357916 17.6357909 2430-May-10 14:36:00.000 5.437297889588 17.2205685 17.6143995 17.6143988 2430-May-11 20:48:00.000 5.449804934160 17.2006132 17.5931044 17.5931037 2430-May-13 03:00:00.000 5.462297509531 17.1807448 17.5719055 17.5719049 2430-May-14 09:12:00.000 5.474775678684 17.1609628 17.5508021 17.5508015 2430-May-15 15:24:00.000 5.487239504117 17.1412665 17.5297934 17.5297928 2430-May-16 21:36:00.000 5.499689047856 17.1216552 17.5088787 17.5088781 2430-May-18 03:48:00.000 5.512124371445 17.1021283 17.4880572 17.4880566 2430-May-19 10:00:00.000 5.524545535967 17.0826852 17.4673282 17.4673276 2430-May-20 16:12:00.000 5.536952602039 17.0633251 17.4466910 17.4466904 2430-May-21 22:24:00.000 5.549345629819 17.0440475 17.4261449 17.4261442 2430-May-23 04:36:00.000 5.561724679015 17.0248518 17.4056890 17.4056884 2430-May-24 10:48:00.000 5.574089808885 17.0057373 17.3853229 17.3853222 2430-May-25 17:00:00.000 5.586441078244 16.9867034 17.3650457 17.3650450 2430-May-26 23:12:00.000 5.598778545470 16.9677496 17.3448568 17.3448561 2430-May-28 05:24:00.000 5.611102268506 16.9488753 17.3247555 17.3247548 2430-May-29 11:36:00.000 5.623412304867 16.9300797 17.3047411 17.3047404 2430-May-30 17:48:00.000 5.635708711644 16.9113625 17.2848130 17.2848124 2430-Jun-01 00:00:00.000 5.647991545506 16.8927230 17.2649706 17.2649699 $$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 = '2430-Jan-01' STOP_TIME = '2430-Jun-01' STEP_SIZE = '120' QUANTITIES = '19,22' CENTER = '@Sun'