******************************************************************************* JPL/HORIZONS Nishimura (C/2023 P1) 2024-May-09 01:44:38 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 01:44:38 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. 2227-Jan-01 00:00:00.0000 UT Stop time : A.D. 2227-Aug-01 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.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 2227-Jan-01 00:00:00.000 109.4116710657 -0.0021407 0.1782694 0.1782521 2227-Jan-04 12:48:00.000 109.4116664957 -0.0023383 0.1782233 0.1782064 2227-Jan-08 01:36:00.000 109.4116615223 -0.0025360 0.1781789 0.1781627 2227-Jan-11 14:24:00.000 109.4116561458 -0.0027333 0.1781366 0.1781211 2227-Jan-15 03:12:00.000 109.4116503671 -0.0029301 0.1780965 0.1780817 2227-Jan-18 16:00:00.000 109.4116441877 -0.0031260 0.1780584 0.1780442 2227-Jan-22 04:48:00.000 109.4116376096 -0.0033209 0.1780220 0.1780083 2227-Jan-25 17:36:00.000 109.4116306344 -0.0035151 0.1779870 0.1779737 2227-Jan-29 06:24:00.000 109.4116232639 -0.0037084 0.1779532 0.1779402 2227-Feb-01 19:12:00.000 109.4116154998 -0.0039009 0.1779204 0.1779077 2227-Feb-05 08:00:00.000 109.4116073434 -0.0040927 0.1778885 0.1778760 2227-Feb-08 20:48:00.000 109.4115987963 -0.0042839 0.1778573 0.1778449 2227-Feb-12 09:36:00.000 109.4115898598 -0.0044744 0.1778267 0.1778145 2227-Feb-15 22:24:00.000 109.4115805352 -0.0046643 0.1777967 0.1777846 2227-Feb-19 11:12:00.000 109.4115708236 -0.0048536 0.1777671 0.1777552 2227-Feb-23 00:00:00.000 109.4115607263 -0.0050424 0.1777380 0.1777260 2227-Feb-26 12:48:00.000 109.4115502442 -0.0052307 0.1777090 0.1776971 2227-Mar-02 01:36:00.000 109.4115393784 -0.0054185 0.1776803 0.1776684 2227-Mar-05 14:24:00.000 109.4115281297 -0.0056059 0.1776517 0.1776397 2227-Mar-09 03:12:00.000 109.4115164990 -0.0057930 0.1776229 0.1776109 2227-Mar-12 16:00:00.000 109.4115044869 -0.0059797 0.1775941 0.1775818 2227-Mar-16 04:48:00.000 109.4114920938 -0.0061664 0.1775649 0.1775524 2227-Mar-19 17:36:00.000 109.4114793199 -0.0063530 0.1775352 0.1775224 2227-Mar-23 06:24:00.000 109.4114661650 -0.0065398 0.1775048 0.1774918 2227-Mar-26 19:12:00.000 109.4114526282 -0.0067272 0.1774738 0.1774605 2227-Mar-30 08:00:00.000 109.4114387086 -0.0069152 0.1774422 0.1774287 2227-Apr-02 20:48:00.000 109.4114244045 -0.0071039 0.1774104 0.1773969 2227-Apr-06 09:36:00.000 109.4114097146 -0.0072932 0.1773790 0.1773657 2227-Apr-09 22:24:00.000 109.4113946385 -0.0074825 0.1773483 0.1773352 2227-Apr-13 11:12:00.000 109.4113791759 -0.0076718 0.1773184 0.1773056 2227-Apr-17 00:00:00.000 109.4113633273 -0.0078609 0.1772892 0.1772765 2227-Apr-20 12:48:00.000 109.4113470931 -0.0080498 0.1772605 0.1772478 2227-Apr-24 01:36:00.000 109.4113304735 -0.0082386 0.1772319 0.1772192 2227-Apr-27 14:24:00.000 109.4113134686 -0.0084274 0.1772034 0.1771907 2227-May-01 03:12:00.000 109.4112960782 -0.0086163 0.1771750 0.1771621 2227-May-04 16:00:00.000 109.4112783022 -0.0088054 0.1771464 0.1771335 2227-May-08 04:48:00.000 109.4112601401 -0.0089948 0.1771179 0.1771049 2227-May-11 17:36:00.000 109.4112415913 -0.0091844 0.1770893 0.1770762 2227-May-15 06:24:00.000 109.4112226552 -0.0093743 0.1770607 0.1770476 2227-May-18 19:12:00.000 109.4112033312 -0.0095646 0.1770321 0.1770190 2227-May-22 08:00:00.000 109.4111836186 -0.0097552 0.1770037 0.1769905 2227-May-25 20:48:00.000 109.4111635166 -0.0099462 0.1769753 0.1769621 2227-May-29 09:36:00.000 109.4111430245 -0.0101375 0.1769471 0.1769339 2227-Jun-01 22:24:00.000 109.4111221416 -0.0103292 0.1769190 0.1769059 2227-Jun-05 11:12:00.000 109.4111008672 -0.0105213 0.1768912 0.1768780 2227-Jun-09 00:00:00.000 109.4110792004 -0.0107137 0.1768634 0.1768503 2227-Jun-12 12:48:00.000 109.4110571404 -0.0109067 0.1768358 0.1768226 2227-Jun-16 01:36:00.000 109.4110346863 -0.0111001 0.1768083 0.1767950 2227-Jun-19 14:24:00.000 109.4110118367 -0.0112942 0.1767808 0.1767675 2227-Jun-23 03:12:00.000 109.4109885902 -0.0114891 0.1767534 0.1767401 2227-Jun-26 16:00:00.000 109.4109649449 -0.0116850 0.1767263 0.1767132 2227-Jun-30 04:48:00.000 109.4109408990 -0.0118818 0.1767000 0.1766873 2227-Jul-03 17:36:00.000 109.4109164509 -0.0120791 0.1766752 0.1766630 2227-Jul-07 06:24:00.000 109.4108916001 -0.0122764 0.1766521 0.1766406 2227-Jul-10 19:12:00.000 109.4108663468 -0.0124735 0.1766310 0.1766200 2227-Jul-14 08:00:00.000 109.4108406917 -0.0126702 0.1766115 0.1766011 2227-Jul-17 20:48:00.000 109.4108146358 -0.0128664 0.1765936 0.1765835 2227-Jul-21 09:36:00.000 109.4107881800 -0.0130621 0.1765769 0.1765672 2227-Jul-24 22:24:00.000 109.4107613253 -0.0132573 0.1765614 0.1765520 2227-Jul-28 11:12:00.000 109.4107340727 -0.0134521 0.1765469 0.1765378 2227-Aug-01 00:00:00.000 109.4107064231 -0.0136464 0.1765334 0.1765246 $$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-Aug-01' STEP_SIZE = '60' QUANTITIES = '19,22' CENTER = '@Sun'