******************************************************************************* JPL/HORIZONS 2060 Chiron (1977 UB) 2024-May-11 04:01:37 Rec #: 2060 (+COV) Soln.date: 2024-Apr-15_17:30:22 # obs: 4816 (1895-2024) IAU76/J2000 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs): EPOCH= 2457449.5 ! 2016-Mar-02.00 (TDB) Residual RMS= .20056 EC= .3827229197950457 QR= 8.418212438761079 TP= 2450136.970496438 OM= 209.2271095910314 W= 339.4831068241818 IN= 6.945373528616352 A= 13.63765593883055 MA= 143.1074064139388 ADIST= 18.85709943890003 PER= 50.36372 N= .019570165 ANGMOM= .058689305 DAN= 8.56865 DDN= 18.14354 L= 188.8483518 B= -2.4290095 MOID= 7.42028999 TP= 1996-Feb-23.4704964380 Asteroid physical parameters (km, seconds, rotational period in hours): GM= n.a. RAD= 83. ROTPER= 5.918 H= 5.6 G= .150 B-V= .704 ALBEDO= .150 STYP= Cb ASTEROID comments: 1: soln ref.= JPL#155, OCC=0 2: source=ORB ******************************************************************************* ******************************************************************************* Ephemeris / WWW_USER Sat May 11 04:01:37 2024 Pasadena, USA / Horizons ******************************************************************************* Target body name: 2060 Chiron (1977 UB) {source: JPL#155} Center body name: Earth (399) {source: DE441} Center-site name: GEOCENTRIC ******************************************************************************* Start time : A.D. 1996-Mar-20 00:00:00.0000 UT Stop time : A.D. 1996-Apr-10 00:00:00.0000 UT Step-size : 180 minutes ******************************************************************************* Target pole/equ : undefined Target radii : 83. 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.240510.p240803 EOP coverage : DATA-BASED 1962-JAN-20 TO 2024-MAY-10. PREDICTS-> 2024-AUG-02 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= 2457449.5 ! 2016-Mar-02.00 (TDB) Residual RMS= .20056 EC= .3827229197950457 QR= 8.418212438761079 TP= 2450136.970496438 OM= 209.2271095910314 W= 339.4831068241818 IN= 6.945373528616352 Equivalent ICRF heliocentric cartesian coordinates (au, au/d): X= 1.799918047061442E+01 Y=-3.247931453539689E+00 Z= 9.942643249259442E-02 VX= 1.130607799078249E-03 VY= 2.902504689921008E-03 VZ= 9.780469295300473E-04 Asteroid physical parameters (km, seconds, rotational period in hours): GM= n.a. RAD= 83. ROTPER= 5.918 H= 5.6 G= .150 B-V= .704 ALBEDO= .150 STYP= Cb ******************************************************************************* Date__(UT)__HR:MN APmag S-brt r rdot ******************************************************************* $$SOE 1996-Mar-20 00:00 14.802 6.968 8.454853008922 0.0936378 1996-Mar-20 03:00 14.801 6.967 8.454859781460 0.0939799 1996-Mar-20 06:00 14.799 6.966 8.454866578691 0.0943219 1996-Mar-20 09:00 14.798 6.964 8.454873400614 0.0946639 1996-Mar-20 12:00 14.797 6.963 8.454880247229 0.0950060 1996-Mar-20 15:00 14.795 6.962 8.454887118536 0.0953480 1996-Mar-20 18:00 14.794 6.961 8.454894014535 0.0956900 1996-Mar-20 21:00 14.792 6.959 8.454900935225 0.0960321 1996-Mar-21 00:00 14.791 6.958 8.454907880606 0.0963741 1996-Mar-21 03:00 14.789 6.957 8.454914850679 0.0967161 1996-Mar-21 06:00 14.788 6.955 8.454921845442 0.0970582 1996-Mar-21 09:00 14.787 6.954 8.454928864896 0.0974002 1996-Mar-21 12:00 14.785 6.953 8.454935909041 0.0977422 1996-Mar-21 15:00 14.784 6.951 8.454942977876 0.0980842 1996-Mar-21 18:00 14.782 6.950 8.454950071402 0.0984262 1996-Mar-21 21:00 14.781 6.949 8.454957189617 0.0987682 1996-Mar-22 00:00 14.779 6.948 8.454964332523 0.0991103 1996-Mar-22 03:00 14.778 6.946 8.454971500118 0.0994523 1996-Mar-22 06:00 14.777 6.945 8.454978692403 0.0997943 1996-Mar-22 09:00 14.775 6.943 8.454985909377 0.1001363 1996-Mar-22 12:00 14.774 6.942 8.454993151041 0.1004783 1996-Mar-22 15:00 14.772 6.941 8.455000417393 0.1008203 1996-Mar-22 18:00 14.771 6.939 8.455007708435 0.1011623 1996-Mar-22 21:00 14.769 6.938 8.455015024165 0.1015043 1996-Mar-23 00:00 14.768 6.937 8.455022364584 0.1018463 1996-Mar-23 03:00 14.766 6.935 8.455029729691 0.1021882 1996-Mar-23 06:00 14.765 6.934 8.455037119486 0.1025302 1996-Mar-23 09:00 14.763 6.932 8.455044533970 0.1028722 1996-Mar-23 12:00 14.762 6.931 8.455051973141 0.1032142 1996-Mar-23 15:00 14.760 6.930 8.455059437000 0.1035562 1996-Mar-23 18:00 14.759 6.928 8.455066925546 0.1038982 1996-Mar-23 21:00 14.757 6.927 8.455074438780 0.1042401 1996-Mar-24 00:00 14.756 6.925 8.455081976701 0.1045821 1996-Mar-24 03:00 14.754 6.924 8.455089539309 0.1049241 1996-Mar-24 06:00 14.753 6.923 8.455097126603 0.1052661 1996-Mar-24 09:00 14.751 6.921 8.455104738584 0.1056080 1996-Mar-24 12:00 14.750 6.920 8.455112375252 0.1059500 1996-Mar-24 15:00 14.748 6.918 8.455120036606 0.1062920 1996-Mar-24 18:00 14.746 6.917 8.455127722646 0.1066339 1996-Mar-24 21:00 14.745 6.915 8.455135433372 0.1069759 1996-Mar-25 00:00 14.743 6.914 8.455143168784 0.1073178 1996-Mar-25 03:00 14.742 6.912 8.455150928881 0.1076598 1996-Mar-25 06:00 14.740 6.911 8.455158713664 0.1080017 1996-Mar-25 09:00 14.739 6.909 8.455166523132 0.1083437 1996-Mar-25 12:00 14.737 6.908 8.455174357285 0.1086856 1996-Mar-25 15:00 14.735 6.906 8.455182216122 0.1090276 1996-Mar-25 18:00 14.734 6.905 8.455190099645 0.1093695 1996-Mar-25 21:00 14.732 6.903 8.455198007852 0.1097115 1996-Mar-26 00:00 14.731 6.902 8.455205940743 0.1100534 1996-Mar-26 03:00 14.729 6.900 8.455213898318 0.1103953 1996-Mar-26 06:00 14.727 6.899 8.455221880578 0.1107373 1996-Mar-26 09:00 14.726 6.897 8.455229887521 0.1110792 1996-Mar-26 12:00 14.724 6.895 8.455237919147 0.1114211 1996-Mar-26 15:00 14.722 6.894 8.455245975457 0.1117630 1996-Mar-26 18:00 14.721 6.892 8.455254056450 0.1121050 1996-Mar-26 21:00 14.719 6.891 8.455262162127 0.1124469 1996-Mar-27 00:00 14.718 6.889 8.455270292486 0.1127888 1996-Mar-27 03:00 14.716 6.888 8.455278447528 0.1131307 1996-Mar-27 06:00 14.714 6.886 8.455286627252 0.1134726 1996-Mar-27 09:00 14.713 6.884 8.455294831658 0.1138146 1996-Mar-27 12:00 14.711 6.883 8.455303060747 0.1141565 1996-Mar-27 15:00 14.709 6.881 8.455311314517 0.1144984 1996-Mar-27 18:00 14.708 6.880 8.455319592969 0.1148403 1996-Mar-27 21:00 14.706 6.878 8.455327896103 0.1151822 1996-Mar-28 00:00 14.704 6.876 8.455336223918 0.1155241 1996-Mar-28 03:00 14.703 6.875 8.455344576414 0.1158660 1996-Mar-28 06:00 14.701 6.873 8.455352953592 0.1162079 1996-Mar-28 09:00 14.699 6.872 8.455361355449 0.1165498 1996-Mar-28 12:00 14.698 6.870 8.455369781988 0.1168916 1996-Mar-28 15:00 14.696 6.868 8.455378233207 0.1172335 1996-Mar-28 18:00 14.694 6.867 8.455386709106 0.1175754 1996-Mar-28 21:00 14.693 6.865 8.455395209685 0.1179173 1996-Mar-29 00:00 14.691 6.864 8.455403734944 0.1182592 1996-Mar-29 03:00 14.690 6.862 8.455412284882 0.1186010 1996-Mar-29 06:00 14.688 6.861 8.455420859500 0.1189429 1996-Mar-29 09:00 14.687 6.859 8.455429458797 0.1192848 1996-Mar-29 12:00 14.685 6.858 8.455438082773 0.1196267 1996-Mar-29 15:00 14.684 6.856 8.455446731428 0.1199685 1996-Mar-29 18:00 14.682 6.855 8.455455404761 0.1203104 1996-Mar-29 21:00 14.681 6.853 8.455464102773 0.1206522 1996-Mar-30 00:00 14.679 6.852 8.455472825463 0.1209941 1996-Mar-30 03:00 14.678 6.851 8.455481572831 0.1213360 1996-Mar-30 06:00 14.677 6.850 8.455490344876 0.1216778 1996-Mar-30 09:00 14.676 6.848 8.455499141600 0.1220197 1996-Mar-30 12:00 14.675 6.847 8.455507963000 0.1223615 1996-Mar-30 15:00 14.674 6.846 8.455516809078 0.1227034 1996-Mar-30 18:00 14.673 6.846 8.455525679833 0.1230452 1996-Mar-30 21:00 14.672 6.845 8.455534575264 0.1233870 1996-Mar-31 00:00 14.671 6.844 8.455543495372 0.1237289 1996-Mar-31 03:00 14.671 6.843 8.455552440156 0.1240707 1996-Mar-31 06:00 14.670 6.843 8.455561409616 0.1244125 1996-Mar-31 09:00 14.670 6.843 8.455570403752 0.1247544 1996-Mar-31 12:00 14.670 6.842 8.455579422564 0.1250962 1996-Mar-31 15:00 14.670 6.842 8.455588466051 0.1254380 1996-Mar-31 18:00 14.670 6.842 8.455597534214 0.1257798 1996-Mar-31 21:00 14.670 6.843 8.455606627051 0.1261216 1996-Apr-01 00:00 14.670 6.843 8.455615744563 0.1264634 1996-Apr-01 03:00 14.670 6.843 8.455624886750 0.1268053 1996-Apr-01 06:00 14.671 6.844 8.455634053611 0.1271471 1996-Apr-01 09:00 14.672 6.845 8.455643245146 0.1274889 1996-Apr-01 12:00 14.672 6.845 8.455652461354 0.1278307 1996-Apr-01 15:00 14.673 6.846 8.455661702237 0.1281725 1996-Apr-01 18:00 14.674 6.847 8.455670967793 0.1285143 1996-Apr-01 21:00 14.675 6.848 8.455680258021 0.1288560 1996-Apr-02 00:00 14.676 6.849 8.455689572923 0.1291978 1996-Apr-02 03:00 14.678 6.851 8.455698912498 0.1295396 1996-Apr-02 06:00 14.679 6.852 8.455708276745 0.1298814 1996-Apr-02 09:00 14.680 6.853 8.455717665664 0.1302232 1996-Apr-02 12:00 14.682 6.854 8.455727079255 0.1305649 1996-Apr-02 15:00 14.683 6.856 8.455736517517 0.1309067 1996-Apr-02 18:00 14.685 6.857 8.455745980451 0.1312485 1996-Apr-02 21:00 14.686 6.859 8.455755468057 0.1315903 1996-Apr-03 00:00 14.688 6.860 8.455764980333 0.1319320 1996-Apr-03 03:00 14.689 6.862 8.455774517280 0.1322738 1996-Apr-03 06:00 14.691 6.863 8.455784078897 0.1326155 1996-Apr-03 09:00 14.692 6.865 8.455793665185 0.1329573 1996-Apr-03 12:00 14.694 6.866 8.455803276142 0.1332990 1996-Apr-03 15:00 14.695 6.868 8.455812911769 0.1336408 1996-Apr-03 18:00 14.697 6.870 8.455822572066 0.1339825 1996-Apr-03 21:00 14.699 6.871 8.455832257032 0.1343243 1996-Apr-04 00:00 14.700 6.873 8.455841966666 0.1346660 1996-Apr-04 03:00 14.702 6.874 8.455851700969 0.1350077 1996-Apr-04 06:00 14.704 6.876 8.455861459941 0.1353494 1996-Apr-04 09:00 14.705 6.878 8.455871243580 0.1356912 1996-Apr-04 12:00 14.707 6.879 8.455881051888 0.1360329 1996-Apr-04 15:00 14.708 6.881 8.455890884863 0.1363746 1996-Apr-04 18:00 14.710 6.882 8.455900742505 0.1367163 1996-Apr-04 21:00 14.712 6.884 8.455910624814 0.1370580 1996-Apr-05 00:00 14.713 6.886 8.455920531789 0.1373997 1996-Apr-05 03:00 14.715 6.887 8.455930463431 0.1377414 1996-Apr-05 06:00 14.717 6.889 8.455940419740 0.1380831 1996-Apr-05 09:00 14.718 6.890 8.455950400714 0.1384248 1996-Apr-05 12:00 14.720 6.892 8.455960406353 0.1387665 1996-Apr-05 15:00 14.722 6.894 8.455970436658 0.1391082 1996-Apr-05 18:00 14.723 6.895 8.455980491628 0.1394499 1996-Apr-05 21:00 14.725 6.897 8.455990571263 0.1397915 1996-Apr-06 00:00 14.726 6.898 8.456000675561 0.1401332 1996-Apr-06 03:00 14.728 6.900 8.456010804524 0.1404749 1996-Apr-06 06:00 14.730 6.901 8.456020958151 0.1408166 1996-Apr-06 09:00 14.731 6.903 8.456031136441 0.1411582 1996-Apr-06 12:00 14.733 6.905 8.456041339395 0.1414999 1996-Apr-06 15:00 14.734 6.906 8.456051567011 0.1418415 1996-Apr-06 18:00 14.736 6.908 8.456061819290 0.1421832 1996-Apr-06 21:00 14.738 6.909 8.456072096231 0.1425248 1996-Apr-07 00:00 14.739 6.911 8.456082397833 0.1428665 1996-Apr-07 03:00 14.741 6.912 8.456092724098 0.1432081 1996-Apr-07 06:00 14.742 6.914 8.456103075024 0.1435497 1996-Apr-07 09:00 14.744 6.915 8.456113450611 0.1438914 1996-Apr-07 12:00 14.745 6.917 8.456123850858 0.1442330 1996-Apr-07 15:00 14.747 6.918 8.456134275766 0.1445746 1996-Apr-07 18:00 14.748 6.920 8.456144725334 0.1449162 1996-Apr-07 21:00 14.750 6.921 8.456155199562 0.1452578 1996-Apr-08 00:00 14.752 6.922 8.456165698449 0.1455994 1996-Apr-08 03:00 14.753 6.924 8.456176221996 0.1459410 1996-Apr-08 06:00 14.755 6.925 8.456186770200 0.1462826 1996-Apr-08 09:00 14.756 6.927 8.456197343064 0.1466242 1996-Apr-08 12:00 14.758 6.928 8.456207940585 0.1469658 1996-Apr-08 15:00 14.759 6.930 8.456218562765 0.1473074 1996-Apr-08 18:00 14.761 6.931 8.456229209601 0.1476490 1996-Apr-08 21:00 14.762 6.932 8.456239881095 0.1479906 1996-Apr-09 00:00 14.764 6.934 8.456250577246 0.1483321 1996-Apr-09 03:00 14.765 6.935 8.456261298053 0.1486737 1996-Apr-09 06:00 14.767 6.937 8.456272043516 0.1490153 1996-Apr-09 09:00 14.768 6.938 8.456282813635 0.1493568 1996-Apr-09 12:00 14.770 6.939 8.456293608409 0.1496984 1996-Apr-09 15:00 14.771 6.941 8.456304427839 0.1500399 1996-Apr-09 18:00 14.772 6.942 8.456315271923 0.1503815 1996-Apr-09 21:00 14.774 6.943 8.456326140662 0.1507230 1996-Apr-10 00:00 14.775 6.945 8.456337034054 0.1510645 $$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 '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 = 'Chiron' START_TIME = '1996-03-20' STOP_TIME = '1996-04-10' STEP_SIZE = '3 hours' QUANTITIES = '9,19'