******************************************************************************* JPL/HORIZONS Nishimura (C/2023 P1) 2024-May-16 20:30:17 Rec #:90004781 (+COV) Soln.date: 2024-May-14_12:51:38 # obs: 634 (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= .9960989545609656 QR= .225152198822073 TP= 2460205.1414429308 OM= 66.8345527051347 W= 116.2979523617996 IN= 132.4763989093128 A= 57.71586164292563 MA= 359.9738321457668 ADIST= 115.2065710870292 PER= 438.48120012815 N= .002247819 ANGMOM= .011532158 DAN= .80443 DDN= .31182 L= 300.637241 B= 41.393001 MOID= .0786922 TP= 2023-Sep-17.6414429308 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= -7.963383793831E-9 A2= -5.977740511298E-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#27, data arc: 2023-01-19 to 2024-05-05 2: k1=8.25; ******************************************************************************* ******************************************************************************* Ephemeris / WWW_USER Thu May 16 20:30:18 2024 Pasadena, USA / Horizons ******************************************************************************* Target body name: Nishimura (C/2023 P1) {source: JPL#27} Center body name: Sun (10) {source: DE441} Center-site name: BODYCENTRIC ******************************************************************************* Start time : A.D. 2227-Jan-01 00:00:00.0000 UT Stop time : A.D. 2227-Dec-31 00:00:00.0000 UT Step-size : 60 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.240516.p240809 EOP coverage : DATA-BASED 1962-JAN-20 TO 2024-MAY-16. PREDICTS-> 2024-AUG-08 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= .9960989545609656 QR= .225152198822073 TP= 2460205.1414429308 OM= 66.8345527051347 W= 116.2979523617996 IN= 132.4763989093128 Equivalent ICRF heliocentric cartesian coordinates (au, au/d): X= 2.817263857014118E-01 Y= 2.307120388885161E-01 Z= 2.606771782606515E-01 VX=-6.292605864681219E-03 VY=-3.523859794878661E-02 VZ=-5.921125907266775E-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= -7.963383793831E-9 A2= -5.977740511298E-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 2227-Jan-01 00:00:00.000 109.4113268080 -0.0021556 0.1782701 0.1782528 2227-Jan-07 01:36:00.000 109.4113186610 -0.0024949 0.1781920 0.1781756 2227-Jan-13 03:12:00.000 109.4113093254 -0.0028337 0.1781197 0.1781046 2227-Jan-19 04:48:00.000 109.4112988062 -0.0031703 0.1780536 0.1780395 2227-Jan-25 06:24:00.000 109.4112871121 -0.0035044 0.1779924 0.1779791 2227-Jan-31 08:00:00.000 109.4112742519 -0.0038360 0.1779348 0.1779220 2227-Feb-06 09:36:00.000 109.4112602338 -0.0041654 0.1778799 0.1778674 2227-Feb-12 11:12:00.000 109.4112450648 -0.0044929 0.1778271 0.1778149 2227-Feb-18 12:48:00.000 109.4112287516 -0.0048186 0.1777759 0.1777639 2227-Feb-24 14:24:00.000 109.4112113002 -0.0051426 0.1777258 0.1777139 2227-Mar-02 16:00:00.000 109.4111927160 -0.0054652 0.1776765 0.1776645 2227-Mar-08 17:36:00.000 109.4111730035 -0.0057867 0.1776272 0.1776152 2227-Mar-14 19:12:00.000 109.4111521662 -0.0061073 0.1775776 0.1775652 2227-Mar-20 20:48:00.000 109.4111302061 -0.0064278 0.1775266 0.1775138 2227-Mar-26 22:24:00.000 109.4111071219 -0.0067492 0.1774737 0.1774604 2227-Apr-02 00:00:00.000 109.4110829085 -0.0070725 0.1774193 0.1774058 2227-Apr-08 01:36:00.000 109.4110575590 -0.0073974 0.1773656 0.1773524 2227-Apr-14 03:12:00.000 109.4110310705 -0.0077224 0.1773141 0.1773013 2227-Apr-20 04:48:00.000 109.4110034442 -0.0080469 0.1772644 0.1772517 2227-Apr-26 06:24:00.000 109.4109746817 -0.0083711 0.1772154 0.1772027 2227-May-02 08:00:00.000 109.4109447830 -0.0086954 0.1771666 0.1771537 2227-May-08 09:36:00.000 109.4109137469 -0.0090204 0.1771176 0.1771046 2227-May-14 11:12:00.000 109.4108815707 -0.0093462 0.1770685 0.1770554 2227-May-20 12:48:00.000 109.4108482514 -0.0096730 0.1770195 0.1770064 2227-May-26 14:24:00.000 109.4108137853 -0.0100008 0.1769708 0.1769577 2227-Jun-01 16:00:00.000 109.4107781688 -0.0103297 0.1769226 0.1769094 2227-Jun-07 17:36:00.000 109.4107413980 -0.0106596 0.1768748 0.1768616 2227-Jun-13 19:12:00.000 109.4107034691 -0.0109908 0.1768274 0.1768142 2227-Jun-19 20:48:00.000 109.4106643767 -0.0113238 0.1767802 0.1767669 2227-Jun-25 22:24:00.000 109.4106241136 -0.0116592 0.1767334 0.1767202 2227-Jul-02 00:00:00.000 109.4105826706 -0.0119972 0.1766887 0.1766763 2227-Jul-08 01:36:00.000 109.4105400413 -0.0123360 0.1766488 0.1766373 2227-Jul-14 03:12:00.000 109.4104962260 -0.0126740 0.1766142 0.1766037 2227-Jul-20 04:48:00.000 109.4104512288 -0.0130106 0.1765841 0.1765743 2227-Jul-26 06:24:00.000 109.4104050548 -0.0133458 0.1765575 0.1765482 2227-Aug-01 08:00:00.000 109.4103577086 -0.0136797 0.1765339 0.1765251 2227-Aug-07 09:36:00.000 109.4103091950 -0.0140121 0.1765129 0.1765045 2227-Aug-13 11:12:00.000 109.4102595189 -0.0143432 0.1764943 0.1764863 2227-Aug-19 12:48:00.000 109.4102086854 -0.0146728 0.1764778 0.1764701 2227-Aug-25 14:24:00.000 109.4101566998 -0.0150008 0.1764631 0.1764556 2227-Aug-31 16:00:00.000 109.4101035676 -0.0153274 0.1764496 0.1764422 2227-Sep-06 17:36:00.000 109.4100492936 -0.0156525 0.1764367 0.1764292 2227-Sep-12 19:12:00.000 109.4099938820 -0.0159769 0.1764236 0.1764158 2227-Sep-18 20:48:00.000 109.4099373340 -0.0163014 0.1764094 0.1764014 2227-Sep-24 22:24:00.000 109.4098796475 -0.0166269 0.1763946 0.1763865 2227-Oct-01 00:00:00.000 109.4098208188 -0.0169531 0.1763811 0.1763734 2227-Oct-07 01:36:00.000 109.4097608484 -0.0172784 0.1763701 0.1763628 2227-Oct-13 03:12:00.000 109.4096997406 -0.0176023 0.1763609 0.1763537 2227-Oct-19 04:48:00.000 109.4096375000 -0.0179251 0.1763522 0.1763448 2227-Oct-25 06:24:00.000 109.4095741295 -0.0182474 0.1763429 0.1763353 2227-Oct-31 08:00:00.000 109.4095096300 -0.0185696 0.1763329 0.1763249 2227-Nov-06 09:36:00.000 109.4094440006 -0.0188924 0.1763217 0.1763134 2227-Nov-12 11:12:00.000 109.4093772392 -0.0192159 0.1763094 0.1763008 2227-Nov-18 12:48:00.000 109.4093093424 -0.0195405 0.1762961 0.1762871 2227-Nov-24 14:24:00.000 109.4092403059 -0.0198665 0.1762816 0.1762723 2227-Nov-30 16:00:00.000 109.4091701243 -0.0201942 0.1762660 0.1762563 2227-Dec-06 17:36:00.000 109.4090987911 -0.0205239 0.1762490 0.1762390 2227-Dec-12 19:12:00.000 109.4090262977 -0.0208566 0.1762306 0.1762202 2227-Dec-18 20:48:00.000 109.4089526323 -0.0211931 0.1762111 0.1762005 2227-Dec-24 22:24:00.000 109.4088777803 -0.0215338 0.1761923 0.1761822 2227-Dec-31 00:00:00.000 109.4088017293 -0.0218772 0.1761771 0.1761677 $$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 = '2227-Jan-01' STOP_TIME = '2227-Dec-31' STEP_SIZE = '60' QUANTITIES = '19,22' CENTER = '@Sun'