******************************************************************************* JPL/HORIZONS 159P/LONEOS 2024-May-22 21:18:56 Rec #:90001097 (+COV) Soln.date: 2024-Feb-25_22:13:01 # obs: 880 (1989-2021) IAU76/J2000 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs): EPOCH= 2457137.5 ! 2015-Apr-25.0000000 (TDB) RMSW= n.a. EC= .3820686345499863 QR= 3.621138816545359 TP= 2458261.7024925188 OM= 55.06374879146188 W= 4.872823566779058 IN= 23.46231163109001 A= 5.860098740752922 MA= 281.8927734498213 ADIST= 8.099058664960484 PER= 14.186184472249 N= .069477898 ANGMOM= .038482992 DAN= 3.62476 DDN= 8.081 L= 59.5354049 B= 1.9381257 MOID= 2.63323998 TP= 2018-May-23.2024925188 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= n.a. M1= 12.9 M2= n.a. k1= 4.5 k2= n.a. PHCOF= n.a. COMET comments 1: soln ref.= JPL#55, data arc: 1989-12-17 to 2021-03-21 2: k1=4.5; ******************************************************************************* ******************************************************************************* Ephemeris / WWW_USER Wed May 22 21:18:56 2024 Pasadena, USA / Horizons ******************************************************************************* Target body name: 159P/LONEOS {source: JPL#55} Center body name: Earth (399) {source: DE441} Center-site name: GEOCENTRIC ******************************************************************************* Start time : A.D. 2032-Jul-25 00:00:00.0000 UT Stop time : A.D. 2032-Jul-31 00:00:00.0000 UT Step-size : 180 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.240522.p240815 EOP coverage : DATA-BASED 1962-JAN-20 TO 2024-MAY-22. PREDICTS-> 2024-AUG-14 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= 2457137.5 ! 2015-Apr-25.0000000 (TDB) RMSW= n.a. EC= .3820686345499863 QR= 3.621138816545359 TP= 2458261.7024925188 OM= 55.06374879146188 W= 4.872823566779058 IN= 23.46231163109001 Equivalent ICRF heliocentric cartesian coordinates (au, au/d): X= 2.625525290114433E+00 Y=-3.885628806929607E+00 Z=-4.111717765452023E+00 VX= 4.163418481052014E-03 VY= 4.844975519947581E-03 VZ= 1.894284167566120E-03 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= n.a. M1= 12.9 M2= n.a. k1= 4.5 k2= n.a. PHCOF= n.a. ******************************************************************************* Date__(UT)__HR:MN r rdot ************************************************** $$SOE 2032-Jul-25 00:00 3.635883439571 -0.0558441 2032-Jul-25 03:00 3.635879474525 -0.0539937 2032-Jul-25 06:00 3.635875643081 -0.0521432 2032-Jul-25 09:00 3.635871945238 -0.0502927 2032-Jul-25 12:00 3.635868380999 -0.0484422 2032-Jul-25 15:00 3.635864950363 -0.0465916 2032-Jul-25 18:00 3.635861653333 -0.0447411 2032-Jul-25 21:00 3.635858489908 -0.0428905 2032-Jul-26 00:00 3.635855460090 -0.0410400 2032-Jul-26 03:00 3.635852563879 -0.0391894 2032-Jul-26 06:00 3.635849801276 -0.0373388 2032-Jul-26 09:00 3.635847172282 -0.0354882 2032-Jul-26 12:00 3.635844676897 -0.0336376 2032-Jul-26 15:00 3.635842315122 -0.0317870 2032-Jul-26 18:00 3.635840086959 -0.0299364 2032-Jul-26 21:00 3.635837992407 -0.0280858 2032-Jul-27 00:00 3.635836031467 -0.0262352 2032-Jul-27 03:00 3.635834204139 -0.0243845 2032-Jul-27 06:00 3.635832510425 -0.0225339 2032-Jul-27 09:00 3.635830950324 -0.0206832 2032-Jul-27 12:00 3.635829523838 -0.0188326 2032-Jul-27 15:00 3.635828230966 -0.0169819 2032-Jul-27 18:00 3.635827071709 -0.0151312 2032-Jul-27 21:00 3.635826046068 -0.0132806 2032-Jul-28 00:00 3.635825154042 -0.0114299 2032-Jul-28 03:00 3.635824395633 -0.0095792 2032-Jul-28 06:00 3.635823770840 -0.0077285 2032-Jul-28 09:00 3.635823279663 -0.0058778 2032-Jul-28 12:00 3.635822922104 -0.0040271 2032-Jul-28 15:00 3.635822698162 -0.0021764 2032-Jul-28 18:00 3.635822607837 -0.0003257 2032-Jul-28 21:00 3.635822651130 0.0015250 2032-Jul-29 00:00 3.635822828040 0.0033757 2032-Jul-29 03:00 3.635823138569 0.0052264 2032-Jul-29 06:00 3.635823582715 0.0070771 2032-Jul-29 09:00 3.635824160480 0.0089278 2032-Jul-29 12:00 3.635824871862 0.0107785 2032-Jul-29 15:00 3.635825716862 0.0126292 2032-Jul-29 18:00 3.635826695481 0.0144799 2032-Jul-29 21:00 3.635827807717 0.0163306 2032-Jul-30 00:00 3.635829053572 0.0181813 2032-Jul-30 03:00 3.635830433044 0.0200320 2032-Jul-30 06:00 3.635831946134 0.0218827 2032-Jul-30 09:00 3.635833592841 0.0237334 2032-Jul-30 12:00 3.635835373165 0.0255841 2032-Jul-30 15:00 3.635837287107 0.0274348 2032-Jul-30 18:00 3.635839334665 0.0292855 2032-Jul-30 21:00 3.635841515840 0.0311362 2032-Jul-31 00:00 3.635843830631 0.0329869 $$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 = '159P' QUANTITIES = '19' START_TIME = '2032-Jul-25' STEP_SIZE = '3 hours' STOP_TIME = '2032-Jul-31'