******************************************************************************* JPL/HORIZONS McNaught (C/2006 P1) 2024-May-10 19:11:19 Rec #:90003642 (+COV) Soln.date: 2021-Apr-15_23:30:59 # obs: 331 (2006-2007) IAU76/J2000 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs): EPOCH= 2454065.5 ! 2006-Nov-26.0000000 (TDB) RMSW= n.a. EC= 1.000018815882278 QR= .1707364648528884 TP= 2454113.2988436329 OM= 267.4148026435385 W= 155.9749681149126 IN= 77.83700054890942 A= -9074.061068728695 MA= -5.4502812965308E-5 ADIST= 9.999999E99 PER= 9.999999E99 N= 1.14E-6 ANGMOM= .010052212 DAN= 3.94245 DDN= .17847 L= 82.04948520000001 B= 23.4529837 MOID= .40940601 TP= 2007-Jan-12.7988436329 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= n.a. M1= 5.4 M2= 12.9 k1= 20.75 k2= 5. PHCOF= .030 COMET comments 1: soln ref.= JPL#27, data arc: 2006-08-07 to 2007-07-11 2: k1=20.75, k2=5., phase coef.=0.03; ******************************************************************************* ******************************************************************************* Ephemeris / WWW_USER Fri May 10 19:11:19 2024 Pasadena, USA / Horizons ******************************************************************************* Target body name: McNaught (C/2006 P1) {source: JPL#27} Center body name: Earth (399) {source: DE441} Center-site name: GEOCENTRIC ******************************************************************************* Start time : A.D. 2007-Jan-12 19:00:00.0000 UT Stop time : A.D. 2007-Jan-12 19:30:00.0000 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.240510.p240803 EOP coverage : DATA-BASED 1962-JAN-20 TO 2024-MAY-10. PREDICTS-> 2024-AUG-02 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= 2454065.5 ! 2006-Nov-26.0000000 (TDB) RMSW= n.a. EC= 1.000018815882278 QR= .1707364648528884 TP= 2454113.2988436329 OM= 267.4148026435385 W= 155.9749681149126 IN= 77.83700054890942 Equivalent ICRF heliocentric cartesian coordinates (au, au/d): X= 3.108169182050542E-02 Y=-1.293847674003737E+00 Z=-1.220881115605168E-01 VX= 1.178722771799021E-03 VY= 1.912334650954304E-02 VZ= 9.391595170035781E-03 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= n.a. M1= 5.4 M2= 12.9 k1= 20.75 k2= 5. PHCOF= .030 ******************************************************************************************************************************** Date__(UT)__HR:MN r rdot delta deldot VmagSn VmagOb RNG_3sigma RNGRT_3sig ******************************************************************************************************************************** $$SOE 2007-Jan-12 19:00 0.170733209084 -0.1980586 0.85459364872420 -50.1812114 101.9415140 106.1913300 1008.7843 0.0025799 2007-Jan-12 19:01 0.170733132083 -0.1858504 0.85457352121621 -50.1687712 101.9415370 106.1899208 1008.5734 0.0025803 2007-Jan-12 19:02 0.170733059979 -0.1736421 0.85455339869982 -50.1563288 101.9415585 106.1885102 1008.3624 0.0025807 2007-Jan-12 19:03 0.170732992772 -0.1614338 0.85453328117592 -50.1438842 101.9415786 106.1870981 1008.1514 0.0025810 2007-Jan-12 19:04 0.170732930463 -0.1492255 0.85451316864539 -50.1314374 101.9415972 106.1856844 1007.9404 0.0025814 2007-Jan-12 19:05 0.170732873051 -0.1370171 0.85449306110910 -50.1189884 101.9416143 106.1842693 1007.7294 0.0025818 2007-Jan-12 19:06 0.170732820536 -0.1248088 0.85447295856795 -50.1065372 101.9416300 106.1828527 1007.5183 0.0025822 2007-Jan-12 19:07 0.170732772919 -0.1126004 0.85445286102281 -50.0940839 101.9416442 106.1814346 1007.3072 0.0025826 2007-Jan-12 19:08 0.170732730198 -0.1003920 0.85443276847455 -50.0816283 101.9416570 106.1800151 1007.0961 0.0025829 2007-Jan-12 19:09 0.170732692376 -0.0881837 0.85441268092406 -50.0691705 101.9416683 106.1785940 1006.8850 0.0025833 2007-Jan-12 19:10 0.170732659450 -0.0759753 0.85439259837222 -50.0567106 101.9416781 106.1771715 1006.6738 0.0025837 2007-Jan-12 19:11 0.170732631422 -0.0637669 0.85437252081990 -50.0442485 101.9416865 106.1757475 1006.4626 0.0025841 2007-Jan-12 19:12 0.170732608291 -0.0515584 0.85435244826797 -50.0317842 101.9416934 106.1743219 1006.2513 0.0025844 2007-Jan-12 19:13 0.170732590057 -0.0393500 0.85433238071733 -50.0193177 101.9416988 106.1728949 1006.0401 0.0025848 2007-Jan-12 19:14 0.170732576721 -0.0271416 0.85431231816883 -50.0068490 101.9417028 106.1714665 1005.8288 0.0025852 2007-Jan-12 19:15 0.170732568282 -0.0149332 0.85429226062336 -49.9943781 101.9417053 106.1700365 1005.6175 0.0025856 2007-Jan-12 19:16 0.170732564740 -0.0027248 0.85427220808180 -49.9819051 101.9417064 106.1686050 1005.4061 0.0025859 2007-Jan-12 19:17 0.170732566096 0.0094837 0.85425216054501 -49.9694298 101.9417060 106.1671721 1005.1948 0.0025863 2007-Jan-12 19:18 0.170732572349 0.0216921 0.85423211801386 -49.9569524 101.9417041 106.1657377 1004.9834 0.0025867 2007-Jan-12 19:19 0.170732583499 0.0339005 0.85421208048925 -49.9444728 101.9417008 106.1643017 1004.7720 0.0025871 2007-Jan-12 19:20 0.170732599547 0.0461089 0.85419204797202 -49.9319911 101.9416960 106.1628643 1004.5605 0.0025874 2007-Jan-12 19:21 0.170732620492 0.0583173 0.85417202046306 -49.9195072 101.9416897 106.1614255 1004.3490 0.0025878 2007-Jan-12 19:22 0.170732646334 0.0705258 0.85415199796325 -49.9070211 101.9416820 106.1599851 1004.1375 0.0025882 2007-Jan-12 19:23 0.170732677073 0.0827341 0.85413198047343 -49.8945328 101.9416729 106.1585432 1003.9260 0.0025885 2007-Jan-12 19:24 0.170732712710 0.0949425 0.85411196799450 -49.8820423 101.9416622 106.1570999 1003.7144 0.0025889 2007-Jan-12 19:25 0.170732753244 0.1071509 0.85409196052732 -49.8695497 101.9416501 106.1556551 1003.5029 0.0025893 2007-Jan-12 19:26 0.170732798676 0.1193593 0.85407195807276 -49.8570550 101.9416366 106.1542088 1003.2913 0.0025897 2007-Jan-12 19:27 0.170732849004 0.1315676 0.85405196063167 -49.8445580 101.9416215 106.1527610 1003.0796 0.0025900 2007-Jan-12 19:28 0.170732904230 0.1437759 0.85403196820495 -49.8320589 101.9416050 106.1513117 1002.8679 0.0025904 2007-Jan-12 19:29 0.170732964353 0.1559843 0.85401198079345 -49.8195576 101.9415871 106.1498610 1002.6563 0.0025908 2007-Jan-12 19:30 0.170733029374 0.1681926 0.85399199839804 -49.8070542 101.9415677 106.1484087 1002.4445 0.0025911 $$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 = '2006 P1' START_TIME = '2007-01-12 19:00' STOP_TIME = '2007-01-12 19:30' STEP_SIZE = '1 min' QUANTITIES = '19,20,22,39'