******************************************************************************* JPL/HORIZONS Utsunomiya-Jones (C/2000 W1) 2024-May-01 16:16:52 Rec #:90002653 (+COV) Soln.date: 2021-Apr-15_23:30:08 # obs: 440 (2000-2001) IAU76/J2000 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs): EPOCH= 2451889.5 ! 2000-Dec-11.0000000 (TDB) RMSW= n.a. EC= 1.000001769662552 QR= .3211811790223707 TP= 2451905.0592705449 OM= 10.76595996173393 W= 51.50886753780876 IN= 160.1654345803042 A= -181492.8945914923 MA= -1.9833705737131E-7 ADIST= 9.999999E99 PER= 9.999999E99 N= 1.3E-8 ANGMOM= .01378706 DAN= .39594 DDN= 1.70115 L= 320.9748492 B= 15.4011768 MOID= .100655 TP= 2000-Dec-26.5592705449 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= n.a. M1= 12.6 M2= 20.5 k1= 10. k2= 5. PHCOF= .030 COMET comments 1: soln ref.= JPL#23, data arc: 2000-11-26 to 2001-01-23 2: k1=10., k2=5., phase coef.=0.03; ******************************************************************************* ******************************************************************************* Ephemeris / WWW_USER Wed May 1 16:16:52 2024 Pasadena, USA / Horizons ******************************************************************************* Target body name: Utsunomiya-Jones (C/2000 W1) {source: JPL#23} Center body name: Earth (399) {source: DE441} Center-site name: GEOCENTRIC ******************************************************************************* Start time : A.D. 2000-Dec-26 13:30:00.0000 UT Stop time : A.D. 2000-Dec-26 14:00:00.0000 UT Step-size : 1 minutes ******************************************************************************* Target pole/equ : undefined Target radii : undefined Center geodetic : 0.0, 0.0, -6378.137 {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 : ITRF93 {East-longitude positive} Center radii : 6378.137, 6378.137, 6356.752 km {Equator_a, b, pole_c} Target primary : Sun Vis. interferer : MOON (R_eq= 1737.400) km {source: DE441} 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.240501.p240725 EOP coverage : DATA-BASED 1962-JAN-20 TO 2024-MAY-01. PREDICTS-> 2024-JUL-24 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 (>38.000=NO), 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= 2451889.5 ! 2000-Dec-11.0000000 (TDB) RMSW= n.a. EC= 1.000001769662552 QR= .3211811790223707 TP= 2451905.0592705449 OM= 10.76595996173393 W= 51.50886753780876 IN= 160.1654345803042 Equivalent ICRF heliocentric cartesian coordinates (au, au/d): X= 4.267344456061283E-01 Y= 3.408686329823480E-01 Z= 5.056639760778035E-02 VX=-7.407111250170191E-04 VY=-3.275928467478365E-02 VZ=-2.296118358357083E-03 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= n.a. M1= 12.6 M2= 20.5 k1= 10. k2= 5. PHCOF= .030 ******************************************************************************************************************************** Date__(UT)__HR:MN r rdot delta deldot VmagSn VmagOb RNG_3sigma RNGRT_3sig ******************************************************************************************************************************** $$SOE 2000-Dec-26 13:30 0.321181593298 -0.0153943 1.22235230560212 44.9199052 74.3246113 56.4737773 581.9838 0.0002744 2000-Dec-26 13:31 0.321181587817 -0.0119457 1.22237031894022 44.9171594 74.3246120 56.4721793 581.9850 0.0002744 2000-Dec-26 13:32 0.321181583718 -0.0084971 1.22238833117731 44.9144135 74.3246125 56.4705813 581.9863 0.0002744 2000-Dec-26 13:33 0.321181581002 -0.0050485 1.22240634231332 44.9116675 74.3246128 56.4689831 581.9875 0.0002745 2000-Dec-26 13:34 0.321181579669 -0.0015999 1.22242435234819 44.9089213 74.3246129 56.4673849 581.9887 0.0002745 2000-Dec-26 13:35 0.321181579718 0.0018488 1.22244236128189 44.9061750 74.3246129 56.4657866 581.9899 0.0002745 2000-Dec-26 13:36 0.321181581151 0.0052974 1.22246036911434 44.9034285 74.3246128 56.4641881 581.9911 0.0002745 2000-Dec-26 13:37 0.321181583967 0.0087460 1.22247837584549 44.9006819 74.3246124 56.4625896 581.9924 0.0002745 2000-Dec-26 13:38 0.321181588166 0.0121946 1.22249638147530 44.8979352 74.3246119 56.4609910 581.9936 0.0002745 2000-Dec-26 13:39 0.321181593748 0.0156432 1.22251438600369 44.8951883 74.3246113 56.4593923 581.9948 0.0002745 2000-Dec-26 13:40 0.321181600712 0.0190918 1.22253238943063 44.8924413 74.3246105 56.4577934 581.9960 0.0002746 2000-Dec-26 13:41 0.321181609060 0.0225405 1.22255039175604 44.8896941 74.3246095 56.4561945 581.9972 0.0002746 2000-Dec-26 13:42 0.321181618790 0.0259891 1.22256839297989 44.8869468 74.3246084 56.4545955 581.9985 0.0002746 2000-Dec-26 13:43 0.321181629904 0.0294377 1.22258639310210 44.8841994 74.3246071 56.4529964 581.9997 0.0002746 2000-Dec-26 13:44 0.321181642400 0.0328863 1.22260439212263 44.8814518 74.3246057 56.4513972 582.0009 0.0002746 2000-Dec-26 13:45 0.321181656280 0.0363349 1.22262239004142 44.8787041 74.3246041 56.4497979 582.0021 0.0002746 2000-Dec-26 13:46 0.321181671542 0.0397835 1.22264038685842 44.8759563 74.3246023 56.4481985 582.0034 0.0002746 2000-Dec-26 13:47 0.321181688187 0.0432321 1.22265838257356 44.8732083 74.3246004 56.4465990 582.0046 0.0002747 2000-Dec-26 13:48 0.321181706215 0.0466808 1.22267637718680 44.8704602 74.3245983 56.4449994 582.0058 0.0002747 2000-Dec-26 13:49 0.321181725627 0.0501294 1.22269437069808 44.8677119 74.3245961 56.4433997 582.0071 0.0002747 2000-Dec-26 13:50 0.321181746421 0.0535780 1.22271236310735 44.8649635 74.3245937 56.4417999 582.0083 0.0002747 2000-Dec-26 13:51 0.321181768598 0.0570266 1.22273035441454 44.8622150 74.3245911 56.4402000 582.0095 0.0002747 2000-Dec-26 13:52 0.321181792158 0.0604752 1.22274834461961 44.8594663 74.3245884 56.4386000 582.0107 0.0002747 2000-Dec-26 13:53 0.321181817101 0.0639238 1.22276633372249 44.8567175 74.3245855 56.4369999 582.0120 0.0002747 2000-Dec-26 13:54 0.321181843427 0.0673724 1.22278432172314 44.8539686 74.3245824 56.4353998 582.0132 0.0002748 2000-Dec-26 13:55 0.321181871135 0.0708210 1.22280230862150 44.8512195 74.3245792 56.4337995 582.0144 0.0002748 2000-Dec-26 13:56 0.321181900227 0.0742696 1.22282029441752 44.8484703 74.3245759 56.4321991 582.0157 0.0002748 2000-Dec-26 13:57 0.321181930702 0.0777182 1.22283827911113 44.8457209 74.3245723 56.4305987 582.0169 0.0002748 2000-Dec-26 13:58 0.321181962560 0.0811668 1.22285626270228 44.8429714 74.3245687 56.4289981 582.0182 0.0002748 2000-Dec-26 13:59 0.321181995800 0.0846154 1.22287424519092 44.8402218 74.3245648 56.4273974 582.0194 0.0002748 2000-Dec-26 14:00 0.321182030424 0.0880640 1.22289222657700 44.8374720 74.3245608 56.4257967 582.0206 0.0002748 $$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. STATISTICAL UNCERTAINTIES Output includes formal +/- 3 standard-deviation statistical orbit uncertainty quantities. There is a 99.7% (1-D) or 98.9% (2-D) chance the actual value is within given bounds. These statistical calculations assume observational data errors are random. If there are systematic biases (such as timing, reduction or star-catalog errors), results can be optimistic. Because the epoch covariance is mapped using linearized variational partial derivatives, results can also be optimistic for times far from the solution epoch, particularly for objects having close planetary encounters. '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 'delta deldot' = Apparent range ("delta", light-time aberrated) and range-rate ("delta-dot") of the target center relative to the observer. A positive "deldot" means the target center is moving away from the observer, negative indicates movement toward the observer. 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 'RNG_3sigma RNGRT_3sig' = Range and range rate (radial velocity) formal 3-standard-deviation uncertainties. Units: KM, 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 = '2000 W1' START_TIME = '2000-12-26 13:30' STOP_TIME = '2000-12-26 14:00' STEP_SIZE = '1 min' QUANTITIES = '19,20,22,39'