******************************************************************************* JPL/HORIZONS (2017 OF201) 2025-Dec-12 17:42:25 Rec #:50310440 (+COV) Soln.date: 2025-Jul-03_00:00:08 # obs: 25 (2004-2018) IAU76/J2000 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs): EPOCH= 2455831.5 ! 2011-Sep-27.00 (TDB) Residual RMS= .046134 EC= .9505930959457484 QR= 45.16043239342015 TP= 2426354.9834308983 OM= 328.5292634453194 W= 338.2681282911799 IN= 16.19594737230442 A= 914.0510472753239 MA= 1.051294898221775 ADIST= 1782.941662157227 PER= 27635.28057 N= 3.5666E-5 ANGMOM= .161452148 DAN= 46.78075 DDN= 753.10463 L= 307.5837146 B= -5.927796 MOID= 44.15039825 TP= 1931-Jan-13.4834308983 Asteroid physical parameters (km, seconds, rotational period in hours): GM= n.a. RAD= n.a. ROTPER= n.a. H= 3.49 G= .150 B-V= n.a. ALBEDO= n.a. STYP= n.a. ASTEROID comments: 1: soln ref.= JPL#2, OCC=2 2: source=ORB ******************************************************************************* ******************************************************************************* Ephemeris / WWW_USER Fri Dec 12 17:42:26 2025 Pasadena, USA / Horizons ******************************************************************************* Target body name: (2017 OF201) {source: JPL#2} Center body name: Earth (399) {source: DE441} Center-site name: GEOCENTRIC ******************************************************************************* Start time : A.D. 1930-Nov-10 00:00:00.0000 UT Stop time : A.D. 1930-Nov-16 00:00:00.0000 UT Step-size : 360 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.251212.p260310 EOP coverage : DATA-BASED 1962-JAN-20 TO 2025-DEC-12. PREDICTS-> 2026-MAR-09 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= 2455831.5 ! 2011-Sep-27.00 (TDB) Residual RMS= .046134 EC= .9505930959457484 QR= 45.16043239342015 TP= 2426354.9834308983 OM= 328.5292634453194 W= 338.2681282911799 IN= 16.19594737230442 Equivalent ICRF heliocentric cartesian coordinates (au, au/d): X= 6.775844613404512E+01 Y= 2.968361147021817E+01 Z= 3.520217657915301E+01 VX= 3.666028001044503E-04 VY= 2.034501695175812E-03 VZ= 1.620724494420167E-03 Asteroid physical parameters (km, seconds, rotational period in hours): GM= n.a. RAD= n.a. ROTPER= n.a. H= 3.49 G= .150 B-V= n.a. ALBEDO= n.a. STYP= n.a. ******************************************************************************* Date__(UT)__HR:MN r rdot ************************************************** $$SOE 1930-Nov-10 00:00 44.91893316015 -0.0009937 1930-Nov-10 06:00 44.91893302128 -0.0009301 1930-Nov-10 12:00 44.91893289160 -0.0008665 1930-Nov-10 18:00 44.91893277110 -0.0008028 1930-Nov-11 00:00 44.91893265978 -0.0007392 1930-Nov-11 06:00 44.91893255766 -0.0006756 1930-Nov-11 12:00 44.91893246472 -0.0006119 1930-Nov-11 18:00 44.91893238097 -0.0005483 1930-Nov-12 00:00 44.91893230640 -0.0004846 1930-Nov-12 06:00 44.91893224103 -0.0004210 1930-Nov-12 12:00 44.91893218485 -0.0003573 1930-Nov-12 18:00 44.91893213786 -0.0002936 1930-Nov-13 00:00 44.91893210006 -0.0002300 1930-Nov-13 06:00 44.91893207146 -0.0001663 1930-Nov-13 12:00 44.91893205205 -0.0001026 1930-Nov-13 18:00 44.91893204183 -0.0000389 1930-Nov-14 00:00 44.91893204081 0.0000248 1930-Nov-14 06:00 44.91893204898 0.0000885 1930-Nov-14 12:00 44.91893206636 0.0001522 1930-Nov-14 18:00 44.91893209292 0.0002159 1930-Nov-15 00:00 44.91893212869 0.0002796 1930-Nov-15 06:00 44.91893217366 0.0003433 1930-Nov-15 12:00 44.91893222782 0.0004070 1930-Nov-15 18:00 44.91893229119 0.0004708 1930-Nov-16 00:00 44.91893236376 0.0005345 $$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/horizons_batch.txt scripts https://ssd.jpl.nasa.gov/ftp/ssd/SCRIPTS Author : Jon.D.Giorgini@jpl.nasa.gov ******************************************************************************* !$$SOF COMMAND = '2017 OF201' QUANTITIES = '19' START_TIME = '1930-Nov-10' STEP_SIZE = '6 hour' STOP_TIME = '1930-Nov-16'