******************************************************************************* JPL/HORIZONS (2020 CD3) 2024-May-24 01:19:59 Rec #:50541537 (+COV) Soln.date: 2021-Jun-25_15:07:42 # obs: 128 (2018-2020) IAU76/J2000 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs): EPOCH= 2458914.5 ! 2020-Mar-06.00 (TDB) Residual RMS= .078773 EC= .03494529757096312 QR= .9863971818171792 TP= 2458866.3996462021 OM= 134.7432090092998 W= 342.2597100247675 IN= .7388576324362984 A= 1.022115305313184 MA= 45.87779192987005 ADIST= 1.057833428809189 PER= 1.03338 N= .953793232 ANGMOM= .017380651 DAN= .98798 DDN= 1.05602 L= 117.0043016 B= -.2251264 MOID= .00224417 TP= 2020-Jan-17.8996462021 Asteroid physical parameters (km, seconds, rotational period in hours): GM= n.a. RAD= n.a. ROTPER= n.a. H= 31.74 G= .150 B-V= n.a. ALBEDO= n.a. STYP= n.a. Non-default Earth gravity model (EOBL_LIM= au): EOBL_LIM= 0.100 EOBL_MOD = 4x4 Asteroid non-gravitational force model (AMRAT= m^2/kg;A1,A2,A3=au/d^2;R0=au): AMRAT= 0. A1= 1.356929074973E-10 A2= 0. A3= 0. Non-standard or simulated/proxy model: ALN= 1. NK= 0. NM= 2. NN= 0. R0= 1. ASTEROID comments: 1: soln ref.= JPL#27, OCC=0 2: source=ORB ******************************************************************************* ******************************************************************************* Ephemeris / WWW_USER Fri May 24 01:19:59 2024 Pasadena, USA / Horizons ******************************************************************************* Target body name: (2020 CD3) {source: JPL#27} Center body name: Earth (399) {source: DE441} Center-site name: GEOCENTRIC ******************************************************************************* Start time : A.D. 2020-Mar-01 00:00:00.0000 UT Stop time : A.D. 2020-May-08 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.240523.p240816 EOP coverage : DATA-BASED 1962-JAN-20 TO 2024-MAY-23. PREDICTS-> 2024-AUG-15 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= 2458914.5 ! 2020-Mar-06.00 (TDB) Residual RMS= .078773 EC= .03494529757096312 QR= .9863971818171792 TP= 2458866.3996462021 OM= 134.7432090092998 W= 342.2597100247675 IN= .7388576324362984 Equivalent ICRF heliocentric cartesian coordinates (au, au/d): X=-9.675822914533228E-01 Y= 2.212974108216997E-01 Z= 1.031890496759188E-01 VX=-4.692966798948430E-03 VY=-1.547085528646655E-02 VZ=-6.494577482405959E-03 Asteroid physical parameters (km, seconds, rotational period in hours): GM= n.a. RAD= n.a. ROTPER= n.a. H= 31.74 G= .150 B-V= n.a. Non-default Earth gravity model (EOBL_LIM= au): EOBL_LIM= 0.100 EOBL_MOD = 4x4 Asteroid non-gravitational force model (AMRAT= m^2/kg;A1,A2,A3=au/d^2;R0=au): AMRAT= 0. A1= 1.356929074973E-10 A2= 0. A3= 0. Non-standard or simulated/proxy model: ALN= 1. NK= 0. NM= 2. NN= 0. R0= 1. ******************************************************************************* Date__(UT)__HR:MN delta deldot *************************************************** $$SOE 2020-Mar-01 00:00 0.00841809680735 0.5069212 2020-Mar-02 00:00 0.00870540572290 0.4882357 2020-Mar-03 00:00 0.00898221503523 0.4705213 2020-Mar-04 00:00 0.00924902255393 0.4535635 2020-Mar-05 00:00 0.00950620828482 0.4371687 2020-Mar-06 00:00 0.00975404699178 0.4211670 2020-Mar-07 00:00 0.00999272426633 0.4054217 2020-Mar-08 00:00 0.01022236007210 0.3898452 2020-Mar-09 00:00 0.01044304215577 0.3744161 2020-Mar-10 00:00 0.01065486775148 0.3591892 2020-Mar-11 00:00 0.01085798657750 0.3442887 2020-Mar-12 00:00 0.01105263443987 0.3298828 2020-Mar-13 00:00 0.01123914832501 0.3161475 2020-Mar-14 00:00 0.01141796072887 0.3032332 2020-Mar-15 00:00 0.01158957868843 0.2912457 2020-Mar-16 00:00 0.01175455663575 0.2802439 2020-Mar-17 00:00 0.01191347080603 0.2702463 2020-Mar-18 00:00 0.01206689911620 0.2612418 2020-Mar-19 00:00 0.01221540704038 0.2531998 2020-Mar-20 00:00 0.01235953819932 0.2460761 2020-Mar-21 00:00 0.01249980794222 0.2398174 2020-Mar-22 00:00 0.01263669850885 0.2343625 2020-Mar-23 00:00 0.01277065491606 0.2296439 2020-Mar-24 00:00 0.01290208123421 0.2255874 2020-Mar-25 00:00 0.01303133727912 0.2221140 2020-Mar-26 00:00 0.01315873590689 0.2191404 2020-Mar-27 00:00 0.01328454108052 0.2165807 2020-Mar-28 00:00 0.01340896674372 0.2143479 2020-Mar-29 00:00 0.01353217638181 0.2123544 2020-Mar-30 00:00 0.01365428307661 0.2105133 2020-Mar-31 00:00 0.01377534996111 0.2087388 2020-Apr-01 00:00 0.01389539131368 0.2069479 2020-Apr-02 00:00 0.01401437512089 0.2050640 2020-Apr-03 00:00 0.01413222872670 0.2030246 2020-Apr-04 00:00 0.01424884994703 0.2007924 2020-Apr-05 00:00 0.01436412624425 0.1983717 2020-Apr-06 00:00 0.01447796339797 0.1958239 2020-Apr-07 00:00 0.01459032187191 0.1932774 2020-Apr-08 00:00 0.01470125423381 0.1909200 2020-Apr-09 00:00 0.01481093311564 0.1889739 2020-Apr-10 00:00 0.01491965993811 0.1876562 2020-Apr-11 00:00 0.01502785113919 0.1871430 2020-Apr-12 00:00 0.01513600730117 0.1875477 2020-Apr-13 00:00 0.01524467571380 0.1889196 2020-Apr-14 00:00 0.01535441613911 0.1912552 2020-Apr-15 00:00 0.01546577505072 0.1945147 2020-Apr-16 00:00 0.01557926902950 0.1986365 2020-Apr-17 00:00 0.01569537531496 0.2035472 2020-Apr-18 00:00 0.01581452677882 0.2091671 2020-Apr-19 00:00 0.01593710899539 0.2154123 2020-Apr-20 00:00 0.01606345788697 0.2221948 2020-Apr-21 00:00 0.01619385721300 0.2294217 2020-Apr-22 00:00 0.01632853579433 0.2369957 2020-Apr-23 00:00 0.01646766478328 0.2448146 2020-Apr-24 00:00 0.01661135550558 0.2527737 2020-Apr-25 00:00 0.01675965842549 0.2607675 2020-Apr-26 00:00 0.01691256366249 0.2686930 2020-Apr-27 00:00 0.01707000329922 0.2764528 2020-Apr-28 00:00 0.01723185558033 0.2839585 2020-Apr-29 00:00 0.01739795112465 0.2911342 2020-Apr-30 00:00 0.01756808151998 0.2979215 2020-May-01 00:00 0.01774201109984 0.3042857 2020-May-02 00:00 0.01791949311895 0.3102248 2020-May-03 00:00 0.01810029156083 0.3157799 2020-May-04 00:00 0.01828420888565 0.3210442 2020-May-05 00:00 0.01847111773562 0.3261672 2020-May-06 00:00 0.01866099125408 0.3313449 2020-May-07 00:00 0.01885392385851 0.3367959 2020-May-08 00:00 0.01905013457249 0.3427268 $$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 = '2020 CD3' QUANTITIES = '20' START_TIME = '2020-Mar-01' STEP_SIZE = '1 day' STOP_TIME = '2020-May-08'