******************************************************************************* JPL/HORIZONS (2012 KP24) 2024-May-06 03:07:17 Rec #:50161020 (+COV) Soln.date: 2021-Apr-15_06:26:48 # obs: 139 (5 days) IAU76/J2000 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs): EPOCH= 2456073.5 ! 2012-May-26.00 (TDB) Residual RMS= .4476 EC= .3341283134333994 QR= .9199476671811836 TP= 2456118.224642965 OM= 67.52746557685853 W= 230.7697676882258 IN= 18.60340285302074 A= 1.381568980541374 MA= 332.8548593918322 ADIST= 1.843190293901564 PER= 1.62393 N= .606939235 ANGMOM= .019057319 DAN= 1.55617 DDN= 1.01322 L= 296.7835057 B= -14.3067373 MOID= .00022184 TP= 2012-Jul-09.7246429650 Asteroid physical parameters (km, seconds, rotational period in hours): GM= n.a. RAD= n.a. ROTPER= .041667 H= 26.45 G= .150 B-V= n.a. ALBEDO= n.a. STYP= n.a. ASTEROID comments: 1: soln ref.= JPL#10, OCC=6 2: source=ORB ******************************************************************************* ******************************************************************************* Ephemeris / WWW_USER Mon May 6 03:07:17 2024 Pasadena, USA / Horizons ******************************************************************************* Target body name: (2012 KP24) {source: JPL#10} Center body name: Earth (399) {source: DE441} Center-site name: GEOCENTRIC ******************************************************************************* Start time : A.D. 2023-May-10 00:00:00.0000 UT Stop time : A.D. 2023-Jun-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.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= 2456073.5 ! 2012-May-26.00 (TDB) Residual RMS= .4476 EC= .3341283134333994 QR= .9199476671811836 TP= 2456118.224642965 OM= 67.52746557685853 W= 230.7697676882258 IN= 18.60340285302074 Equivalent ICRF heliocentric cartesian coordinates (au, au/d): X=-4.349092404951244E-01 Y=-8.569394527844421E-01 Z=-3.540958988418668E-01 VX= 1.770156212609334E-02 VY=-1.098193421552135E-03 VZ=-7.009575495814732E-03 Asteroid physical parameters (km, seconds, rotational period in hours): GM= n.a. RAD= n.a. ROTPER= .041667 H= 26.45 G= .150 B-V= n.a. ALBEDO= n.a. STYP= n.a. ******************************************************************************* Date__(UT)__HR:MN APmag S-brt delta deldot ******************************************************************** $$SOE 2023-May-10 00:00 24.461 n.a. 0.15622054272487 -12.1507907 2023-May-11 00:00 24.366 n.a. 0.14921015177058 -12.1240015 2023-May-12 00:00 24.268 n.a. 0.14221560924757 -12.0957775 2023-May-13 00:00 24.166 n.a. 0.13523791341184 -12.0655145 2023-May-14 00:00 24.058 n.a. 0.12827844291473 -12.0324916 2023-May-15 00:00 23.946 n.a. 0.12133903921056 -11.9958161 2023-May-16 00:00 23.828 n.a. 0.11442212709102 -11.9543451 2023-May-17 00:00 23.704 n.a. 0.10753088927847 -11.9065747 2023-May-18 00:00 23.573 n.a. 0.10066951842142 -11.8504796 2023-May-19 00:00 23.435 n.a. 0.09384358159665 -11.7832783 2023-May-20 00:00 23.288 n.a. 0.08706055152388 -11.7010818 2023-May-21 00:00 23.133 n.a. 0.08033059079227 -11.5983535 2023-May-22 00:00 22.968 n.a. 0.07366773067286 -11.4670558 2023-May-23 00:00 22.792 n.a. 0.06709168255797 -11.2952660 2023-May-24 00:00 22.607 n.a. 0.06063068927687 -11.0648771 2023-May-25 00:00 22.412 n.a. 0.05432611835644 -10.7477252 2023-May-26 00:00 22.211 n.a. 0.04823999385503 -10.2990723 2023-May-27 00:00 22.011 n.a. 0.04246739081682 -9.6470685 2023-May-28 00:00 21.828 n.a. 0.03715621359051 -8.6780198 2023-May-29 00:00 21.692 n.a. 0.03253517623487 -7.2255924 2023-May-30 00:00 21.655 n.a. 0.02893916408538 -5.1007408 2023-May-31 00:00 21.782 n.a. 0.02678683210634 -2.2406290 2023-Jun-01 00:00 22.111 n.a. 0.02643568549781 1.0470913 2023-Jun-02 00:00 22.595 n.a. 0.02795570744469 4.1305287 2023-Jun-03 00:00 23.124 n.a. 0.03107492418983 6.5432473 2023-Jun-04 00:00 23.613 n.a. 0.03537358966500 8.2329035 2023-Jun-05 00:00 24.029 n.a. 0.04047789700455 9.3661599 2023-Jun-06 00:00 24.375 n.a. 0.04612080394247 10.1248905 2023-Jun-07 00:00 24.663 n.a. 0.05212682158954 10.6414875 2023-Jun-08 00:00 24.905 n.a. 0.05838261797958 11.0011156 2023-Jun-09 00:00 25.111 n.a. 0.06481406445919 11.2567938 2023-Jun-10 00:00 25.290 n.a. 0.07137143235846 11.4416484 $$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. 'APmag S-brt' = The asteroids' approximate apparent airless visual magnitude and surface brightness using the standard IAU H-G system magnitude model: APmag = H + 5*log10(delta) + 5*log10(r) - 2.5*log10((1-G)*phi_1 + G*phi_2) For solar phase angles >90 deg, the error could exceed 1 magnitude. For phase angles >120 degrees, output values are rounded to the nearest integer to indicate error could be large and unknown. For Earth-based observers, the estimated dimming due to atmospheric absorption (extinction) is available as a separate, requestable quantity. Surface brightness is the average airless visual magnitude of a square-arcsecond of the illuminated portion of the apparent disk. It is computed only if the target radius is known. Units: MAGNITUDES & MAGNITUDES PER SQUARE ARCSECOND '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 = '2012 KP24' START_TIME = '2023-05-10' STOP_TIME = '2023-06-10' STEP_SIZE = '1 day' QUANTITIES = '09,20'