******************************************************************************* JPL/HORIZONS (2018 VG18) 2024-Apr-26 19:56:37 Rec #:50486544 (+COV) Soln.date: 2022-Mar-09_02:29:54 # obs: 34 (2003-2020) IAU76/J2000 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs): EPOCH= 2457518.5 ! 2016-May-10.00 (TDB) Residual RMS= .30102 EC= .5309101028239022 QR= 38.23329642427787 TP= 2340362.5948755629 OM= 245.3511273265536 W= 16.50651088952509 IN= 24.36521745483206 A= 81.50526509831221 MA= 156.9241413882503 ADIST= 124.7772337723465 PER= 735.8456 N= .001339447 ANGMOM= .131606445 DAN= 38.78766 DDN= 119.21652 L= 260.457692 B= 6.7314518 MOID= 37.22499847 TP= 1695-Aug-05.0948755629 Asteroid physical parameters (km, seconds, rotational period in hours): GM= n.a. RAD= n.a. ROTPER= n.a. H= 3.94 G= .150 B-V= n.a. ALBEDO= n.a. STYP= n.a. ASTEROID comments: 1: soln ref.= JPL#8, OCC=6 2: source=ORB ******************************************************************************* ******************************************************************************* Ephemeris / WWW_USER Fri Apr 26 19:56:37 2024 Pasadena, USA / Horizons ******************************************************************************* Target body name: (2018 VG18) {source: JPL#8} Center body name: Earth (399) {source: DE441} Center-site name: GEOCENTRIC ******************************************************************************* Start time : A.D. 1695-Jan-01 00:00:00.0000 UT Stop time : A.D. 1700-Jan-01 00:00:00.0000 UT Step-size : 1 calendar month ******************************************************************************* 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.240426.p240720 EOP coverage : DATA-BASED 1962-JAN-20 TO 2024-APR-26. PREDICTS-> 2024-JUL-19 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= 2457518.5 ! 2016-May-10.00 (TDB) Residual RMS= .30102 EC= .5309101028239022 QR= 38.23329642427787 TP= 2340362.5948755629 OM= 245.3511273265536 W= 16.50651088952509 IN= 24.36521745483206 Equivalent ICRF heliocentric cartesian coordinates (au, au/d): X= 3.652840495494810E+01 Y= 1.106732759403852E+02 Z= 4.017691139620635E+01 VX=-8.860239099775528E-04 VY= 5.732580964773865E-04 VZ=-2.377757922880476E-04 Asteroid physical parameters (km, seconds, rotational period in hours): GM= n.a. RAD= n.a. ROTPER= n.a. H= 3.94 G= .150 B-V= n.a. ALBEDO= n.a. STYP= n.a. ******************************************************************************* Date__(UT)__HR:MN r rdot ************************************************** $$SOE 1695-Jan-01 00:00 38.38182756224 -0.1163308 1695-Feb-01 00:00 38.37979689176 -0.1104964 1695-Mar-01 00:00 38.37805250022 -0.1052176 1695-Apr-01 00:00 38.37622117244 -0.0993325 1695-May-01 00:00 38.37454909046 -0.0936687 1695-Jun-01 00:00 38.37292403627 -0.0878638 1695-Jul-01 00:00 38.37145006146 -0.0822952 1695-Aug-01 00:00 38.37002756912 -0.0766246 1695-Sep-01 00:00 38.36870646698 -0.0709575 1695-Oct-01 00:00 38.36752511712 -0.0654152 1695-Nov-01 00:00 38.36640553849 -0.0596491 1695-Dec-01 00:00 38.36542077188 -0.0540187 1696-Jan-01 00:00 38.36450579344 -0.0482045 1696-Feb-01 00:00 38.36369400945 -0.0424880 1696-Mar-01 00:00 38.36302653307 -0.0372158 1696-Apr-01 00:00 38.36241017506 -0.0316445 1696-May-01 00:00 38.36190822439 -0.0262907 1696-Jun-01 00:00 38.36148727389 -0.0207170 1696-Jul-01 00:00 38.36117533478 -0.0152926 1696-Aug-01 00:00 38.36095170779 -0.0096909 1696-Sep-01 00:00 38.36082829865 -0.0040969 1696-Oct-01 00:00 38.36080378969 0.0012545 1696-Nov-01 00:00 38.36087536165 0.0067386 1696-Dec-01 00:00 38.36103823479 0.0120710 1697-Jan-01 00:00 38.36130377977 0.0175944 1697-Feb-01 00:00 38.36166846488 0.0231459 1697-Mar-01 00:00 38.36208354792 0.0281845 1697-Apr-01 00:00 38.36263765331 0.0336911 1697-May-01 00:00 38.36326696989 0.0389322 1697-Jun-01 00:00 38.36401209805 0.0442905 1697-Jul-01 00:00 38.36482392278 0.0494169 1697-Aug-01 00:00 38.36575614698 0.0547356 1697-Sep-01 00:00 38.36678432572 0.0601379 1697-Oct-01 00:00 38.36787172024 0.0653983 1697-Nov-01 00:00 38.36909136158 0.0708569 1697-Dec-01 00:00 38.37036475989 0.0761229 1698-Jan-01 00:00 38.37177568553 0.0814725 1698-Feb-01 00:00 38.37328191866 0.0867727 1698-Mar-01 00:00 38.37472397012 0.0915512 1698-Apr-01 00:00 38.37641049068 0.0968298 1698-May-01 00:00 38.37813280819 0.1019717 1698-Jun-01 00:00 38.38000634221 0.1072970 1698-Jul-01 00:00 38.38190966463 0.1123979 1698-Aug-01 00:00 38.38396875003 0.1176267 1698-Sep-01 00:00 38.38612105332 0.1228109 1698-Oct-01 00:00 38.38829203870 0.1278158 1698-Nov-01 00:00 38.39062703102 0.1330583 1698-Dec-01 00:00 38.39297676267 0.1381881 1699-Jan-01 00:00 38.39549860230 0.1435197 1699-Feb-01 00:00 38.39811614306 0.1488588 1699-Mar-01 00:00 38.40056210412 0.1536042 1699-Apr-01 00:00 38.40335882380 0.1587656 1699-May-01 00:00 38.40615289334 0.1637291 1699-Jun-01 00:00 38.40913014028 0.1688365 1699-Jul-01 00:00 38.41209850602 0.1738160 1699-Aug-01 00:00 38.41525705170 0.1790451 1699-Sep-01 00:00 38.41850931314 0.1842861 1699-Oct-01 00:00 38.42174589945 0.1893482 1699-Nov-01 00:00 38.42518250711 0.1945676 1699-Dec-01 00:00 38.42859688062 0.1995689 1700-Jan-01 00:00 38.43221624927 0.2047450 $$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 = '2018 VG18' START_TIME = '1695-01-01' STOP_TIME = '1700-01-01' STEP_SIZE = '1 month' QUANTITIES = '19'