******************************************************************************* JPL/HORIZONS Nishimura (C/2023 P1) 2024-May-16 21:41:24 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 21:41:24 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. 2023-Sep-17 00:00:00.0000 UT Stop time : A.D. 2023-Sep-18 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.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 2023-Sep-17 00:00:00.000 0.226342211985 -6.4182587 88.4508385 88.4508385 2023-Sep-17 00:12:00.000 0.226311518580 -6.3360964 88.4568480 88.4568481 2023-Sep-17 00:24:00.000 0.226281220738 -6.2538896 88.4627813 88.4627814 2023-Sep-17 00:36:00.000 0.226251318672 -6.1716389 88.4686383 88.4686383 2023-Sep-17 00:48:00.000 0.226221812591 -6.0893449 88.4744188 88.4744188 2023-Sep-17 01:00:00.000 0.226192702702 -6.0070082 88.4801228 88.4801228 2023-Sep-17 01:12:00.000 0.226163989210 -5.9246292 88.4857502 88.4857503 2023-Sep-17 01:24:00.000 0.226135672316 -5.8422085 88.4913009 88.4913010 2023-Sep-17 01:36:00.000 0.226107752220 -5.7597467 88.4967749 88.4967749 2023-Sep-17 01:48:00.000 0.226080229116 -5.6772444 88.5021720 88.5021721 2023-Sep-17 02:00:00.000 0.226053103201 -5.5947021 88.5074922 88.5074923 2023-Sep-17 02:12:00.000 0.226026374663 -5.5121203 88.5127354 88.5127355 2023-Sep-17 02:24:00.000 0.226000043691 -5.4294997 88.5179015 88.5179016 2023-Sep-17 02:36:00.000 0.225974110471 -5.3468408 88.5229905 88.5229905 2023-Sep-17 02:48:00.000 0.225948575186 -5.2641441 88.5280022 88.5280022 2023-Sep-17 03:00:00.000 0.225923438016 -5.1814102 88.5329366 88.5329366 2023-Sep-17 03:12:00.000 0.225898699138 -5.0986398 88.5377936 88.5377936 2023-Sep-17 03:24:00.000 0.225874358727 -5.0158332 88.5425731 88.5425732 2023-Sep-17 03:36:00.000 0.225850416954 -4.9329912 88.5472752 88.5472752 2023-Sep-17 03:48:00.000 0.225826873989 -4.8501143 88.5518996 88.5518997 2023-Sep-17 04:00:00.000 0.225803729998 -4.7672031 88.5564464 88.5564464 2023-Sep-17 04:12:00.000 0.225780985146 -4.6842581 88.5609154 88.5609155 2023-Sep-17 04:24:00.000 0.225758639592 -4.6012799 88.5653066 88.5653067 2023-Sep-17 04:36:00.000 0.225736693495 -4.5182690 88.5696200 88.5696201 2023-Sep-17 04:48:00.000 0.225715147010 -4.4352262 88.5738554 88.5738555 2023-Sep-17 05:00:00.000 0.225694000291 -4.3521519 88.5780129 88.5780129 2023-Sep-17 05:12:00.000 0.225673253486 -4.2690466 88.5820922 88.5820923 2023-Sep-17 05:24:00.000 0.225652906743 -4.1859111 88.5860935 88.5860935 2023-Sep-17 05:36:00.000 0.225632960207 -4.1027458 88.5900165 88.5900166 2023-Sep-17 05:48:00.000 0.225613414018 -4.0195514 88.5938614 88.5938614 2023-Sep-17 06:00:00.000 0.225594268315 -3.9363284 88.5976279 88.5976279 2023-Sep-17 06:12:00.000 0.225575523235 -3.8530774 88.6013161 88.6013161 2023-Sep-17 06:24:00.000 0.225557178910 -3.7697990 88.6049258 88.6049259 2023-Sep-17 06:36:00.000 0.225539235471 -3.6864938 88.6084571 88.6084572 2023-Sep-17 06:48:00.000 0.225521693045 -3.6031623 88.6119099 88.6119100 2023-Sep-17 07:00:00.000 0.225504551757 -3.5198052 88.6152841 88.6152842 2023-Sep-17 07:12:00.000 0.225487811728 -3.4364230 88.6185797 88.6185798 2023-Sep-17 07:24:00.000 0.225471473079 -3.3530163 88.6217966 88.6217967 2023-Sep-17 07:36:00.000 0.225455535924 -3.2695857 88.6249348 88.6249349 2023-Sep-17 07:48:00.000 0.225440000378 -3.1861318 88.6279943 88.6279943 2023-Sep-17 08:00:00.000 0.225424866551 -3.1026552 88.6309749 88.6309750 2023-Sep-17 08:12:00.000 0.225410134550 -3.0191564 88.6338767 88.6338767 2023-Sep-17 08:24:00.000 0.225395804481 -2.9356361 88.6366995 88.6366996 2023-Sep-17 08:36:00.000 0.225381876446 -2.8520949 88.6394434 88.6394435 2023-Sep-17 08:48:00.000 0.225368350543 -2.7685333 88.6421084 88.6421084 2023-Sep-17 09:00:00.000 0.225355226870 -2.6849519 88.6446943 88.6446943 2023-Sep-17 09:12:00.000 0.225342505519 -2.6013513 88.6472011 88.6472012 2023-Sep-17 09:24:00.000 0.225330186581 -2.5177322 88.6496289 88.6496289 2023-Sep-17 09:36:00.000 0.225318270145 -2.4340951 88.6519775 88.6519775 2023-Sep-17 09:48:00.000 0.225306756294 -2.3504405 88.6542469 88.6542469 2023-Sep-17 10:00:00.000 0.225295645112 -2.2667692 88.6564371 88.6564372 2023-Sep-17 10:12:00.000 0.225284936677 -2.1830817 88.6585481 88.6585481 2023-Sep-17 10:24:00.000 0.225274631065 -2.0993785 88.6605798 88.6605798 2023-Sep-17 10:36:00.000 0.225264728351 -2.0156603 88.6625322 88.6625322 2023-Sep-17 10:48:00.000 0.225255228604 -1.9319278 88.6644052 88.6644053 2023-Sep-17 11:00:00.000 0.225246131893 -1.8481814 88.6661989 88.6661989 2023-Sep-17 11:12:00.000 0.225237438282 -1.7644218 88.6679132 88.6679132 2023-Sep-17 11:24:00.000 0.225229147833 -1.6806495 88.6695481 88.6695481 2023-Sep-17 11:36:00.000 0.225221260606 -1.5968653 88.6711035 88.6711036 2023-Sep-17 11:48:00.000 0.225213776656 -1.5130696 88.6725795 88.6725795 2023-Sep-17 12:00:00.000 0.225206696037 -1.4292630 88.6739760 88.6739760 2023-Sep-17 12:12:00.000 0.225200018799 -1.3454463 88.6752929 88.6752930 2023-Sep-17 12:24:00.000 0.225193744990 -1.2616199 88.6765304 88.6765304 2023-Sep-17 12:36:00.000 0.225187874655 -1.1777845 88.6776883 88.6776883 2023-Sep-17 12:48:00.000 0.225182407835 -1.0939407 88.6787666 88.6787667 2023-Sep-17 13:00:00.000 0.225177344569 -1.0100890 88.6797654 88.6797654 2023-Sep-17 13:12:00.000 0.225172684894 -0.9262302 88.6806845 88.6806846 2023-Sep-17 13:24:00.000 0.225168428841 -0.8423647 88.6815240 88.6815241 2023-Sep-17 13:36:00.000 0.225164576442 -0.7584931 88.6822840 88.6822840 2023-Sep-17 13:48:00.000 0.225161127724 -0.6746162 88.6829642 88.6829643 2023-Sep-17 14:00:00.000 0.225158082712 -0.5907344 88.6835649 88.6835649 2023-Sep-17 14:12:00.000 0.225155441425 -0.5068484 88.6840859 88.6840859 2023-Sep-17 14:24:00.000 0.225153203885 -0.4229588 88.6845272 88.6845272 2023-Sep-17 14:36:00.000 0.225151370105 -0.3390662 88.6848888 88.6848889 2023-Sep-17 14:48:00.000 0.225149940099 -0.2551712 88.6851708 88.6851709 2023-Sep-17 15:00:00.000 0.225148913878 -0.1712744 88.6853731 88.6853732 2023-Sep-17 15:12:00.000 0.225148291447 -0.0873763 88.6854957 88.6854958 2023-Sep-17 15:24:00.000 0.225148072811 -0.0034777 88.6855386 88.6855387 2023-Sep-17 15:36:00.000 0.225148257971 0.0804209 88.6855019 88.6855019 2023-Sep-17 15:48:00.000 0.225148846925 0.1643190 88.6853854 88.6853855 2023-Sep-17 16:00:00.000 0.225149839670 0.2482158 88.6851893 88.6851894 2023-Sep-17 16:12:00.000 0.225151236197 0.3321108 88.6849135 88.6849136 2023-Sep-17 16:24:00.000 0.225153036497 0.4160034 88.6845580 88.6845581 2023-Sep-17 16:36:00.000 0.225155240555 0.4998930 88.6841229 88.6841230 2023-Sep-17 16:48:00.000 0.225157848356 0.5837790 88.6836081 88.6836082 2023-Sep-17 17:00:00.000 0.225160859880 0.6676608 88.6830136 88.6830137 2023-Sep-17 17:12:00.000 0.225164275106 0.7515378 88.6823395 88.6823396 2023-Sep-17 17:24:00.000 0.225168094009 0.8354093 88.6815858 88.6815858 2023-Sep-17 17:36:00.000 0.225172316561 0.9192748 88.6807524 88.6807525 2023-Sep-17 17:48:00.000 0.225176942732 1.0031337 88.6798395 88.6798395 2023-Sep-17 18:00:00.000 0.225181972487 1.0869854 88.6788469 88.6788469 2023-Sep-17 18:12:00.000 0.225187405790 1.1708292 88.6777747 88.6777748 2023-Sep-17 18:24:00.000 0.225193242603 1.2546647 88.6766230 88.6766231 2023-Sep-17 18:36:00.000 0.225199482883 1.3384911 88.6753917 88.6753918 2023-Sep-17 18:48:00.000 0.225206126584 1.4223078 88.6740809 88.6740810 2023-Sep-17 19:00:00.000 0.225213173659 1.5061144 88.6726906 88.6726907 2023-Sep-17 19:12:00.000 0.225220624057 1.5899101 88.6712209 88.6712209 2023-Sep-17 19:24:00.000 0.225228477724 1.6736944 88.6696716 88.6696717 2023-Sep-17 19:36:00.000 0.225236734604 1.7574667 88.6680429 88.6680430 2023-Sep-17 19:48:00.000 0.225245394636 1.8412263 88.6663348 88.6663348 2023-Sep-17 20:00:00.000 0.225254457759 1.9249727 88.6645473 88.6645473 2023-Sep-17 20:12:00.000 0.225263923907 2.0087053 88.6626804 88.6626805 2023-Sep-17 20:24:00.000 0.225273793012 2.0924235 88.6607342 88.6607343 2023-Sep-17 20:36:00.000 0.225284065004 2.1761267 88.6587087 88.6587088 2023-Sep-17 20:48:00.000 0.225294739807 2.2598143 88.6566039 88.6566040 2023-Sep-17 21:00:00.000 0.225305817346 2.3434857 88.6544199 88.6544199 2023-Sep-17 21:12:00.000 0.225317297540 2.4271402 88.6521567 88.6521567 2023-Sep-17 21:24:00.000 0.225329180307 2.5107774 88.6498142 88.6498143 2023-Sep-17 21:36:00.000 0.225341465563 2.5943966 88.6473927 88.6473928 2023-Sep-17 21:48:00.000 0.225354153217 2.6779972 88.6448921 88.6448921 2023-Sep-17 22:00:00.000 0.225367243181 2.7615787 88.6423123 88.6423124 2023-Sep-17 22:12:00.000 0.225380735359 2.8451403 88.6396536 88.6396537 2023-Sep-17 22:24:00.000 0.225394629654 2.9286816 88.6369159 88.6369159 2023-Sep-17 22:36:00.000 0.225408925968 3.0122020 88.6340992 88.6340993 2023-Sep-17 22:48:00.000 0.225423624197 3.0957008 88.6312036 88.6312037 2023-Sep-17 23:00:00.000 0.225438724237 3.1791775 88.6282292 88.6282293 2023-Sep-17 23:12:00.000 0.225454225979 3.2626314 88.6251760 88.6251760 2023-Sep-17 23:24:00.000 0.225470129312 3.3460621 88.6220440 88.6220440 2023-Sep-17 23:36:00.000 0.225486434123 3.4294688 88.6188333 88.6188333 2023-Sep-17 23:48:00.000 0.225503140294 3.5128511 88.6155439 88.6155439 2023-Sep-18 00:00:00.000 0.225520247706 3.5962083 88.6121759 88.6121759 $$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 = '2023-Sep-17' STOP_TIME = '2023-Sep-18' STEP_SIZE = '120' QUANTITIES = '19,22' CENTER = '@Sun'