******************************************************************************* JPL/HORIZONS 469219 Kamo`oalewa (2016 HO3) 2024-May-02 11:22:59 Rec #: 469219 (+COV) Soln.date: 2024-Mar-28_05:48:41 # obs: 322 (2004-2024) IAU76/J2000 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs): EPOCH= 2457871.5 ! 2017-Apr-28.00 (TDB) Residual RMS= .081513 EC= .1040287332682467 QR= .8969174933439372 TP= 2458029.6185367191 OM= 66.4320667959238 W= 307.0810358408148 IN= 7.775150858519338 A= 1.001056090353919 MA= 204.4037083420065 ADIST= 1.105194687363901 PER= 1.0016 N= .984048391 ANGMOM= .017117797 DAN= .9317800000000001 DDN= 1.05649 L= 13.7679653 B= -6.1959361 MOID= .0341951 TP= 2017-Oct-03.1185367191 Asteroid physical parameters (km, seconds, rotational period in hours): GM= n.a. RAD= n.a. ROTPER= .467 H= 24.33 G= .150 B-V= n.a. ALBEDO= n.a. STYP= n.a. Asteroid non-gravitational force model (AMRAT= m^2/kg;A1,A2,A3=au/d^2;R0=au): AMRAT= 0. A1= 0. A2= -1.363750288874E-13 A3= 0. Non-standard or simulated/proxy model: ALN= 1. NK= 0. NM= 2. NN= 5.093 R0= 1. ASTEROID comments: 1: soln ref.= JPL#33, OCC=0 2: source=ORB; Nongravitational accels. using nonstandard g(r) = (1 au/ r)^2 ******************************************************************************* ******************************************************************************* Ephemeris / WWW_USER Thu May 2 11:22:59 2024 Pasadena, USA / Horizons ******************************************************************************* Target body name: 469219 Kamo`oalewa (2016 HO3) {source: JPL#33} Center body name: Earth (399) {source: DE441} Center-site name: GEOCENTRIC ******************************************************************************* Start time : A.D. 2030-Jul-08 00:00:00.0000 UT Stop time : A.D. 2030-Jul-10 00:00:00.0000 UT Step-size : 1440 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.240501.p240725 EOP coverage : DATA-BASED 1962-JAN-20 TO 2024-MAY-01. PREDICTS-> 2024-JUL-24 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= 2457871.5 ! 2017-Apr-28.00 (TDB) Residual RMS= .081513 EC= .1040287332682467 QR= .8969174933439372 TP= 2458029.6185367191 OM= 66.4320667959238 W= 307.0810358408148 IN= 7.775150858519338 Equivalent ICRF heliocentric cartesian coordinates (au, au/d): X=-9.099665244445362E-01 Y=-5.901513011030828E-01 Z=-1.679288350591119E-01 VX= 9.012686118152291E-03 VY=-1.085064240119378E-02 VZ=-6.684325790984331E-03 Asteroid physical parameters (km, seconds, rotational period in hours): GM= n.a. RAD= n.a. ROTPER= .467 H= 24.33 G= .150 B-V= n.a. ALBEDO= n.a. STYP= n.a. Asteroid non-gravitational force model (AMRAT= m^2/kg;A1,A2,A3=au/d^2;R0=au): AMRAT= 0. A1= 0. A2= -1.363750288874E-13 A3= 0. Non-standard or simulated/proxy model: ALN= 1. NK= 0. NM= 2. NN= 5.093 R0= 1. ******************************************************************************* Date__(UT)__HR:MN delta deldot *************************************************** $$SOE 2030-Jul-08 00:00 0.29303387504281 0.0472027 2030-Jul-09 00:00 0.29304079599816 -0.0233192 2030-Jul-10 00:00 0.29300686065550 -0.0942348 $$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. '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 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 = '469219' START_TIME = '2030-Jul-08' STOP_TIME = '2030-Jul-10' STEP_SIZE = '1 day' QUANTITIES = '20'