******************************************************************************* JPL/HORIZONS 8405 Asbolus (1995 GO) 2024-May-01 20:31:02 Rec #: 8405 (+COV) Soln.date: 2024-Feb-21_02:29:45 # obs: 504 (1995-2018) IAU76/J2000 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs): EPOCH= 2454857.5 ! 2009-Jan-26.00 (TDB) Residual RMS= .24158 EC= .6214761038997193 QR= 6.845023244004699 TP= 2452487.2197401798 OM= 5.998435586493803 W= 290.4925729801684 IN= 17.61418999948038 A= 18.08346398873395 MA= 30.37954989640499 ADIST= 29.32190473346321 PER= 76.90076000000001 N= .01281686 ANGMOM= .057309178 DAN= 9.115729999999999 DDN= 14.18535 L= 297.4096365 B= -16.4665971 MOID= 5.8757 TP= 2002-Jul-31.7197401798 Asteroid physical parameters (km, seconds, rotational period in hours): GM= n.a. RAD= 33. ROTPER= 8.9351 H= 9.21 G= .150 B-V= n.a. ALBEDO= .130 STYP= n.a. ASTEROID comments: 1: soln ref.= JPL#48, OCC=1 2: source=ORB ******************************************************************************* ******************************************************************************* Ephemeris / WWW_USER Wed May 1 20:31:02 2024 Pasadena, USA / Horizons ******************************************************************************* Target body name: 8405 Asbolus (1995 GO) {source: JPL#48} Center body name: Earth (399) {source: DE441} Center-site name: GEOCENTRIC ******************************************************************************* Start time : A.D. 2078-Dec-14 00:00:00.0000 UT Stop time : A.D. 2078-Dec-20 00:00:00.0000 UT Step-size : 180 minutes ******************************************************************************* Target pole/equ : undefined Target radii : 33. km 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= 2454857.5 ! 2009-Jan-26.00 (TDB) Residual RMS= .24158 EC= .6214761038997193 QR= 6.845023244004699 TP= 2452487.2197401798 OM= 5.998435586493803 W= 290.4925729801684 IN= 17.61418999948038 Equivalent ICRF heliocentric cartesian coordinates (au, au/d): X= 1.000815021188662E+01 Y= 6.183896805408257E+00 Z= 4.949243263978202E+00 VX=-3.226353164657034E-04 VY= 4.122569863093486E-03 VZ= 3.592536195203754E-03 Asteroid physical parameters (km, seconds, rotational period in hours): GM= n.a. RAD= 33. ROTPER= 8.9351 H= 9.21 G= .150 B-V= n.a. ALBEDO= .130 STYP= n.a. ******************************************************************************* Date__(UT)__HR:MN r rdot ************************************************** $$SOE 2078-Dec-14 00:00 6.862471133206 -0.0241436 2078-Dec-14 03:00 6.862469420770 -0.0232987 2078-Dec-14 06:00 6.862467769331 -0.0224537 2078-Dec-14 09:00 6.862466178888 -0.0216088 2078-Dec-14 12:00 6.862464649442 -0.0207639 2078-Dec-14 15:00 6.862463180992 -0.0199189 2078-Dec-14 18:00 6.862461773539 -0.0190740 2078-Dec-14 21:00 6.862460427083 -0.0182290 2078-Dec-15 00:00 6.862459141623 -0.0173841 2078-Dec-15 03:00 6.862457917160 -0.0165391 2078-Dec-15 06:00 6.862456753693 -0.0156942 2078-Dec-15 09:00 6.862455651224 -0.0148492 2078-Dec-15 12:00 6.862454609751 -0.0140043 2078-Dec-15 15:00 6.862453629274 -0.0131594 2078-Dec-15 18:00 6.862452709795 -0.0123144 2078-Dec-15 21:00 6.862451851312 -0.0114695 2078-Dec-16 00:00 6.862451053825 -0.0106245 2078-Dec-16 03:00 6.862450317336 -0.0097796 2078-Dec-16 06:00 6.862449641843 -0.0089346 2078-Dec-16 09:00 6.862449027347 -0.0080897 2078-Dec-16 12:00 6.862448473847 -0.0072447 2078-Dec-16 15:00 6.862447981345 -0.0063998 2078-Dec-16 18:00 6.862447549839 -0.0055549 2078-Dec-16 21:00 6.862447179329 -0.0047099 2078-Dec-17 00:00 6.862446869817 -0.0038650 2078-Dec-17 03:00 6.862446621300 -0.0030200 2078-Dec-17 06:00 6.862446433781 -0.0021751 2078-Dec-17 09:00 6.862446307258 -0.0013302 2078-Dec-17 12:00 6.862446241732 -0.0004852 2078-Dec-17 15:00 6.862446237202 0.0003597 2078-Dec-17 18:00 6.862446293669 0.0012047 2078-Dec-17 21:00 6.862446411132 0.0020496 2078-Dec-18 00:00 6.862446589592 0.0028945 2078-Dec-18 03:00 6.862446829048 0.0037395 2078-Dec-18 06:00 6.862447129501 0.0045844 2078-Dec-18 09:00 6.862447490950 0.0054293 2078-Dec-18 12:00 6.862447913395 0.0062743 2078-Dec-18 15:00 6.862448396837 0.0071192 2078-Dec-18 18:00 6.862448941274 0.0079641 2078-Dec-18 21:00 6.862449546708 0.0088091 2078-Dec-19 00:00 6.862450213138 0.0096540 2078-Dec-19 03:00 6.862450940565 0.0104989 2078-Dec-19 06:00 6.862451728987 0.0113439 2078-Dec-19 09:00 6.862452578405 0.0121888 2078-Dec-19 12:00 6.862453488819 0.0130337 2078-Dec-19 15:00 6.862454460229 0.0138786 2078-Dec-19 18:00 6.862455492635 0.0147236 2078-Dec-19 21:00 6.862456586036 0.0155685 2078-Dec-20 00:00 6.862457740434 0.0164134 $$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 = '8405' START_TIME = '2078-Dec-14' STOP_TIME = '2078-Dec-20' STEP_SIZE = '3 hours' QUANTITIES = '19'