******************************************************************************* JPL/HORIZONS 166P/NEAT 2024-May-02 17:39:18 Rec #:90001107 (+COV) Soln.date: 2021-Apr-15_23:27:43 # obs: 168 (2001-2009) IAU76/J2000 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs): EPOCH= 2452819.5 ! 2003-Jun-29.0000000 (TDB) RMSW= n.a. EC= .3831009241033613 QR= 8.564302274369588 TP= 2452415.3409478045 OM= 64.48883847202967 W= 321.8789017302635 IN= 15.36840138378012 A= 13.88282558524133 MA= 7.700866294190819 ADIST= 19.20134889611307 PER= 51.727918559797 N= .019054049 ANGMOM= .059204453 DAN= 9.102040000000001 DDN= 16.95548 L= 27.3763916 B= -9.4162833 MOID= 7.58248997 TP= 2002-May-20.8409478045 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= n.a. M1= 7. M2= 10.6 k1= 8.75 k2= 5. PHCOF= .030 COMET comments 1: soln ref.= JPL#51, data arc: 2001-08-27 to 2009-02-28 2: k1=8.75, k2=5., phase coef.=0.03; ******************************************************************************* ******************************************************************************* Ephemeris / WWW_USER Thu May 2 17:39:18 2024 Pasadena, USA / Horizons ******************************************************************************* Target body name: 166P/NEAT {source: JPL#51} Center body name: Earth (399) {source: DE441} Center-site name: GEOCENTRIC ******************************************************************************* Start time : A.D. 2053-Nov-24 00:00:00.0000 UT Stop time : A.D. 2053-Nov-28 00:00:00.0000 UT Step-size : 60 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.240502.p240726 EOP coverage : DATA-BASED 1962-JAN-20 TO 2024-MAY-02. PREDICTS-> 2024-JUL-25 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= 2452819.5 ! 2003-Jun-29.0000000 (TDB) RMSW= n.a. EC= .3831009241033613 QR= 8.564302274369588 TP= 2452415.3409478045 OM= 64.48883847202967 W= 321.8789017302635 IN= 15.36840138378012 Equivalent ICRF heliocentric cartesian coordinates (au, au/d): X= 6.062733674899111E+00 Y= 5.973686278878404E+00 Z= 1.747587397312768E+00 VX=-4.176637358699052E-03 VY= 4.080448037977324E-03 VZ= 3.564256320200980E-03 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= n.a. M1= 7. M2= 10.6 k1= 8.75 k2= 5. PHCOF= .030 ******************************************************************************* Date__(UT)__HR:MN r rdot ************************************************** $$SOE 2053-Nov-24 00:00 8.548405785615 -0.0053539 2053-Nov-24 01:00 8.548405658122 -0.0052426 2053-Nov-24 02:00 8.548405533307 -0.0051313 2053-Nov-24 03:00 8.548405411171 -0.0050200 2053-Nov-24 04:00 8.548405291712 -0.0049088 2053-Nov-24 05:00 8.548405174931 -0.0047975 2053-Nov-24 06:00 8.548405060828 -0.0046862 2053-Nov-24 07:00 8.548404949403 -0.0045749 2053-Nov-24 08:00 8.548404840657 -0.0044636 2053-Nov-24 09:00 8.548404734588 -0.0043523 2053-Nov-24 10:00 8.548404631197 -0.0042410 2053-Nov-24 11:00 8.548404530484 -0.0041297 2053-Nov-24 12:00 8.548404432450 -0.0040184 2053-Nov-24 13:00 8.548404337093 -0.0039071 2053-Nov-24 14:00 8.548404244414 -0.0037958 2053-Nov-24 15:00 8.548404154414 -0.0036846 2053-Nov-24 16:00 8.548404067091 -0.0035733 2053-Nov-24 17:00 8.548403982447 -0.0034620 2053-Nov-24 18:00 8.548403900480 -0.0033507 2053-Nov-24 19:00 8.548403821191 -0.0032394 2053-Nov-24 20:00 8.548403744581 -0.0031281 2053-Nov-24 21:00 8.548403670648 -0.0030168 2053-Nov-24 22:00 8.548403599394 -0.0029055 2053-Nov-24 23:00 8.548403530817 -0.0027942 2053-Nov-25 00:00 8.548403464919 -0.0026829 2053-Nov-25 01:00 8.548403401699 -0.0025716 2053-Nov-25 02:00 8.548403341156 -0.0024603 2053-Nov-25 03:00 8.548403283292 -0.0023491 2053-Nov-25 04:00 8.548403228106 -0.0022378 2053-Nov-25 05:00 8.548403175597 -0.0021265 2053-Nov-25 06:00 8.548403125767 -0.0020152 2053-Nov-25 07:00 8.548403078615 -0.0019039 2053-Nov-25 08:00 8.548403034141 -0.0017926 2053-Nov-25 09:00 8.548402992345 -0.0016813 2053-Nov-25 10:00 8.548402953227 -0.0015700 2053-Nov-25 11:00 8.548402916786 -0.0014587 2053-Nov-25 12:00 8.548402883024 -0.0013474 2053-Nov-25 13:00 8.548402851940 -0.0012361 2053-Nov-25 14:00 8.548402823534 -0.0011248 2053-Nov-25 15:00 8.548402797806 -0.0010135 2053-Nov-25 16:00 8.548402774757 -0.0009023 2053-Nov-25 17:00 8.548402754385 -0.0007910 2053-Nov-25 18:00 8.548402736691 -0.0006797 2053-Nov-25 19:00 8.548402721675 -0.0005684 2053-Nov-25 20:00 8.548402709337 -0.0004571 2053-Nov-25 21:00 8.548402699678 -0.0003458 2053-Nov-25 22:00 8.548402692696 -0.0002345 2053-Nov-25 23:00 8.548402688392 -0.0001232 2053-Nov-26 00:00 8.548402686767 -0.0000119 2053-Nov-26 01:00 8.548402687819 0.0000994 2053-Nov-26 02:00 8.548402691550 0.0002107 2053-Nov-26 03:00 8.548402697958 0.0003220 2053-Nov-26 04:00 8.548402707045 0.0004333 2053-Nov-26 05:00 8.548402718810 0.0005446 2053-Nov-26 06:00 8.548402733252 0.0006558 2053-Nov-26 07:00 8.548402750373 0.0007671 2053-Nov-26 08:00 8.548402770172 0.0008784 2053-Nov-26 09:00 8.548402792649 0.0009897 2053-Nov-26 10:00 8.548402817804 0.0011010 2053-Nov-26 11:00 8.548402845637 0.0012123 2053-Nov-26 12:00 8.548402876148 0.0013236 2053-Nov-26 13:00 8.548402909337 0.0014349 2053-Nov-26 14:00 8.548402945204 0.0015462 2053-Nov-26 15:00 8.548402983749 0.0016575 2053-Nov-26 16:00 8.548403024972 0.0017688 2053-Nov-26 17:00 8.548403068873 0.0018801 2053-Nov-26 18:00 8.548403115453 0.0019914 2053-Nov-26 19:00 8.548403164710 0.0021027 2053-Nov-26 20:00 8.548403216645 0.0022140 2053-Nov-26 21:00 8.548403271259 0.0023253 2053-Nov-26 22:00 8.548403328550 0.0024365 2053-Nov-26 23:00 8.548403388520 0.0025478 2053-Nov-27 00:00 8.548403451167 0.0026591 2053-Nov-27 01:00 8.548403516493 0.0027704 2053-Nov-27 02:00 8.548403584497 0.0028817 2053-Nov-27 03:00 8.548403655179 0.0029930 2053-Nov-27 04:00 8.548403728539 0.0031043 2053-Nov-27 05:00 8.548403804576 0.0032156 2053-Nov-27 06:00 8.548403883292 0.0033269 2053-Nov-27 07:00 8.548403964687 0.0034382 2053-Nov-27 08:00 8.548404048759 0.0035495 2053-Nov-27 09:00 8.548404135509 0.0036608 2053-Nov-27 10:00 8.548404224937 0.0037721 2053-Nov-27 11:00 8.548404317043 0.0038834 2053-Nov-27 12:00 8.548404411828 0.0039947 2053-Nov-27 13:00 8.548404509290 0.0041060 2053-Nov-27 14:00 8.548404609431 0.0042172 2053-Nov-27 15:00 8.548404712249 0.0043285 2053-Nov-27 16:00 8.548404817746 0.0044398 2053-Nov-27 17:00 8.548404925920 0.0045511 2053-Nov-27 18:00 8.548405036773 0.0046624 2053-Nov-27 19:00 8.548405150304 0.0047737 2053-Nov-27 20:00 8.548405266513 0.0048850 2053-Nov-27 21:00 8.548405385400 0.0049963 2053-Nov-27 22:00 8.548405506965 0.0051076 2053-Nov-27 23:00 8.548405631208 0.0052189 2053-Nov-28 00:00 8.548405758129 0.0053302 $$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 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 = '166P' START_TIME = '2053-Nov-24' STOP_TIME = '2053-Nov-28' STEP_SIZE = '1 hours' QUANTITIES = '19'