******************************************************************************* JPL/HORIZONS LONEOS (C/2001 OG108) 2024-May-05 07:16:44 Rec #:90002744 (+COV) Soln.date: 2021-Apr-15_23:30:10 # obs: 882 (2001-2002) IAU76/J2000 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs): EPOCH= 2452248.5 ! 2001-Dec-05.0000000 (TDB) RMSW= n.a. EC= .9252600805559724 QR= .9940478865063088 TP= 2452348.7060710541 OM= 10.55528990853371 W= 116.4195105221841 IN= 80.24505922964728 A= 13.30009309483866 MA= 357.9638203768164 ADIST= 25.60613830317101 PER= 48.505414875796 N= .020319923 ANGMOM= .023797416 DAN= 3.25302 DDN= 1.35569 L= 171.7242747 B= 61.9590461 MOID= .300836 TP= 2002-Mar-15.2060710541 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= 6.8 M1= 13.3 M2= n.a. k1= 11.5 k2= n.a. PHCOF= n.a. COMET comments 1: soln ref.= JPL#42, data arc: 2001-07-28 to 2002-07-03 2: k1=11.5; ******************************************************************************* ******************************************************************************* Ephemeris / WWW_USER Sun May 5 07:16:44 2024 Pasadena, USA / Horizons ******************************************************************************* Target body name: LONEOS (C/2001 OG108) {source: JPL#42} Center body name: Earth (399) {source: DE441} Center-site name: GEOCENTRIC ******************************************************************************* Start time : A.D. 2050-Jun-06 00:00:00.0000 UT Stop time : A.D. 2050-Jun-08 00:00:00.0000 UT Step-size : 60 minutes ******************************************************************************* Target pole/equ : undefined Target radii : 6.8 km 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.240503.p240727 EOP coverage : DATA-BASED 1962-JAN-20 TO 2024-MAY-03. PREDICTS-> 2024-JUL-26 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= 2452248.5 ! 2001-Dec-05.0000000 (TDB) RMSW= n.a. EC= .9252600805559724 QR= .9940478865063088 TP= 2452348.7060710541 OM= 10.55528990853371 W= 116.4195105221841 IN= 80.24505922964728 Equivalent ICRF heliocentric cartesian coordinates (au, au/d): X= 1.543103948753891E+00 Y= 5.473216188493405E-02 Z= 9.839310285261972E-01 VX=-1.627534487732254E-02 VY=-4.123339942481800E-03 VZ= 4.370389273591705E-03 Comet physical (GM= km^3/s^2; RAD= km): GM= n.a. RAD= 6.8 M1= 13.3 M2= n.a. k1= 11.5 k2= n.a. PHCOF= n.a. ******************************************************************************* Date__(UT)__HR:MN r rdot ************************************************** $$SOE 2050-Jun-06 00:00 0.997856411476 -0.4984236 2050-Jun-06 01:00 0.997844655620 -0.4785894 2050-Jun-06 02:00 0.997833377085 -0.4587543 2050-Jun-06 03:00 0.997822575892 -0.4389182 2050-Jun-06 04:00 0.997812252063 -0.4190814 2050-Jun-06 05:00 0.997802405617 -0.3992437 2050-Jun-06 06:00 0.997793036574 -0.3794052 2050-Jun-06 07:00 0.997784144951 -0.3595660 2050-Jun-06 08:00 0.997775730766 -0.3397261 2050-Jun-06 09:00 0.997767794034 -0.3198855 2050-Jun-06 10:00 0.997760334772 -0.3000444 2050-Jun-06 11:00 0.997753352993 -0.2802026 2050-Jun-06 12:00 0.997746848711 -0.2603603 2050-Jun-06 13:00 0.997740821938 -0.2405175 2050-Jun-06 14:00 0.997735272686 -0.2206742 2050-Jun-06 15:00 0.997730200965 -0.2008305 2050-Jun-06 16:00 0.997725606786 -0.1809864 2050-Jun-06 17:00 0.997721490157 -0.1611419 2050-Jun-06 18:00 0.997717851085 -0.1412971 2050-Jun-06 19:00 0.997714689578 -0.1214521 2050-Jun-06 20:00 0.997712005641 -0.1016068 2050-Jun-06 21:00 0.997709799280 -0.0817614 2050-Jun-06 22:00 0.997708070499 -0.0619158 2050-Jun-06 23:00 0.997706819300 -0.0420700 2050-Jun-07 00:00 0.997706045686 -0.0222242 2050-Jun-07 01:00 0.997705749658 -0.0023783 2050-Jun-07 02:00 0.997705931218 0.0174675 2050-Jun-07 03:00 0.997706590363 0.0373133 2050-Jun-07 04:00 0.997707727092 0.0571591 2050-Jun-07 05:00 0.997709341404 0.0770047 2050-Jun-07 06:00 0.997711433294 0.0968502 2050-Jun-07 07:00 0.997714002759 0.1166955 2050-Jun-07 08:00 0.997717049793 0.1365405 2050-Jun-07 09:00 0.997720574390 0.1563853 2050-Jun-07 10:00 0.997724576542 0.1762298 2050-Jun-07 11:00 0.997729056242 0.1960739 2050-Jun-07 12:00 0.997734013481 0.2159177 2050-Jun-07 13:00 0.997739448249 0.2357610 2050-Jun-07 14:00 0.997745360535 0.2556038 2050-Jun-07 15:00 0.997751750327 0.2754462 2050-Jun-07 16:00 0.997758617613 0.2952880 2050-Jun-07 17:00 0.997765962379 0.3151292 2050-Jun-07 18:00 0.997773784609 0.3349699 2050-Jun-07 19:00 0.997782084290 0.3548098 2050-Jun-07 20:00 0.997790861404 0.3746491 2050-Jun-07 21:00 0.997800115934 0.3944876 2050-Jun-07 22:00 0.997809847862 0.4143253 2050-Jun-07 23:00 0.997820057168 0.4341623 2050-Jun-08 00:00 0.997830743833 0.4539984 $$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 = '2001 OG108' START_TIME = '2050-06-06' STOP_TIME = '2050-06-08' STEP_SIZE = '1 hours' QUANTITIES = '19'