******************************************************************************* JPL/HORIZONS (2023 DZ2) 2024-May-04 05:38:14 Rec #:50653828 (+COV) Soln.date: 2023-Nov-27_08:32:39 # obs: 643 (72 days) IAU76/J2000 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs): EPOCH= 2460023.5 ! 2023-Mar-20.00 (TDB) Residual RMS= .15616 EC= .5397615362638187 QR= .993845040789782 TP= 2460036.8616714543 OM= 187.8839082141277 W= 5.990171732774039 IN= .08157304056690141 A= 2.159413258774207 MA= 355.849874621235 ADIST= 3.324981476758632 PER= 3.17331 N= .310599268 ANGMOM= .021279799 DAN= .99575 DDN= 3.30382 L= 193.8740739 B= .008512799999999999 MOID= 6.897E-5 TP= 2023-Apr-02.3616714543 Asteroid physical parameters (km, seconds, rotational period in hours): GM= n.a. RAD= n.a. ROTPER= n.a. H= 24.27 G= .150 B-V= n.a. ALBEDO= n.a. STYP= n.a. ASTEROID comments: 1: soln ref.= JPL#26, OCC=1 radar( 4 delay, 1 Dop.) 2: source=ORB ******************************************************************************* ******************************************************************************* Ephemeris / WWW_USER Sat May 4 05:38:14 2024 Pasadena, USA / Horizons ******************************************************************************* Target body name: (2023 DZ2) {source: JPL#26} Center body name: Earth (399) {source: DE441} Center-site name: GEOCENTRIC ******************************************************************************* Start time : A.D. 2023-Apr-02 00:00:00.0000 UT Stop time : A.D. 2023-Apr-06 05:00:00.0000 UT Step-size : 120 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= 2460023.5 ! 2023-Mar-20.00 (TDB) Residual RMS= .15616 EC= .5397615362638187 QR= .993845040789782 TP= 2460036.8616714543 OM= 187.8839082141277 W= 5.990171732774039 IN= .08157304056690141 Equivalent ICRF heliocentric cartesian coordinates (au, au/d): X=-1.007182372404682E+00 Y= 3.984840181053018E-02 Z= 1.699542936794407E-02 VX= 1.202244981603124E-03 VY=-1.944400444405408E-02 VZ=-8.397196349846590E-03 Asteroid physical parameters (km, seconds, rotational period in hours): GM= n.a. RAD= n.a. ROTPER= n.a. H= 24.27 G= .150 B-V= n.a. ALBEDO= n.a. STYP= n.a. ******************************************************************************* Date__(UT)__HR:MN r rdot ************************************************** $$SOE 2023-Apr-02 00:00 0.991415566593 -0.6924656 2023-Apr-02 02:00 0.991382788603 -0.6696561 2023-Apr-02 04:00 0.991351108436 -0.6468444 2023-Apr-02 06:00 0.991320526202 -0.6240305 2023-Apr-02 08:00 0.991291042006 -0.6012144 2023-Apr-02 10:00 0.991262655948 -0.5783962 2023-Apr-02 12:00 0.991235368126 -0.5555761 2023-Apr-02 14:00 0.991209178631 -0.5327541 2023-Apr-02 16:00 0.991184087553 -0.5099304 2023-Apr-02 18:00 0.991160094974 -0.4871049 2023-Apr-02 20:00 0.991137200974 -0.4642778 2023-Apr-02 22:00 0.991115405627 -0.4414493 2023-Apr-03 00:00 0.991094709004 -0.4186193 2023-Apr-03 02:00 0.991075111170 -0.3957880 2023-Apr-03 04:00 0.991056612185 -0.3729555 2023-Apr-03 06:00 0.991039212107 -0.3501219 2023-Apr-03 08:00 0.991022910984 -0.3272873 2023-Apr-03 10:00 0.991007708865 -0.3044518 2023-Apr-03 12:00 0.990993605791 -0.2816154 2023-Apr-03 14:00 0.990980601797 -0.2587784 2023-Apr-03 16:00 0.990968696917 -0.2359407 2023-Apr-03 18:00 0.990957891175 -0.2131026 2023-Apr-03 20:00 0.990948184595 -0.1902640 2023-Apr-03 22:00 0.990939577191 -0.1674252 2023-Apr-04 00:00 0.990932068977 -0.1445861 2023-Apr-04 02:00 0.990925659958 -0.1217470 2023-Apr-04 04:00 0.990920350134 -0.0989080 2023-Apr-04 06:00 0.990916139503 -0.0760690 2023-Apr-04 08:00 0.990913028055 -0.0532303 2023-Apr-04 10:00 0.990911015776 -0.0303920 2023-Apr-04 12:00 0.990910102645 -0.0075541 2023-Apr-04 14:00 0.990910288638 0.0152832 2023-Apr-04 16:00 0.990911573724 0.0381198 2023-Apr-04 18:00 0.990913957869 0.0609556 2023-Apr-04 20:00 0.990917441030 0.0837905 2023-Apr-04 22:00 0.990922023161 0.1066244 2023-Apr-05 00:00 0.990927704212 0.1294571 2023-Apr-05 02:00 0.990934484124 0.1522886 2023-Apr-05 04:00 0.990942362836 0.1751188 2023-Apr-05 06:00 0.990951340280 0.1979475 2023-Apr-05 08:00 0.990961416381 0.2207746 2023-Apr-05 10:00 0.990972591062 0.2436000 2023-Apr-05 12:00 0.990984864237 0.2664236 2023-Apr-05 14:00 0.990998235818 0.2892453 2023-Apr-05 16:00 0.991012705709 0.3120650 2023-Apr-05 18:00 0.991028273809 0.3348825 2023-Apr-05 20:00 0.991044940012 0.3576977 2023-Apr-05 22:00 0.991062704207 0.3805106 2023-Apr-06 00:00 0.991081566275 0.4033209 2023-Apr-06 02:00 0.991101526094 0.4261287 2023-Apr-06 04:00 0.991122583536 0.4489337 $$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 = '2023 DZ2' START_TIME = '2023-Apr-02' STOP_TIME = '2023-Apr-06 05:00' STEP_SIZE = '2 hour' QUANTITIES = '19'