+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   312903 (2011 UQ300) Classification: Main-belt Asteroid          SPK-ID: 2312903 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 14 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .279666731750437 3.9893e-08   a 2.780826035162623 1.7219e-08 au q 2.003121506342167 1.157e-07 au i 8.030728432529976 3.6374e-06 deg node 254.7059955487163 4.2671e-05 deg peri 152.7829944656717 4.4668e-05 deg M 309.9130672008088 1.0358e-05 deg tp 2459236.157406995562 (2021-Jan-21.65740700) 4.8164e-05 TDB period 1693.788415004968 4.64 1.5732e-05 4.307e-08 d yr n .2125413049297212 1.974e-09 deg/d Q 3.55853056398308 2.2034e-08 au   Orbit Determination Parameters    # obs. used (total)      330      data-arc span      8386 days (22.96 yr)      first obs. used      1997-11-30      last obs. used      2020-11-15      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .49718      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 00:42:41   Additional Information  Earth MOID = 1.01732 au   Jupiter MOID = 1.85886 au   T_jup = 3.261  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 16.8   n/a MPO345863   312903 (2011 UQ300)          Discovered 2003-Jan-07 by LINEAR at Socorro Reference: 20120109/Numbers.arc Last Updated: 2012-01-11 [ hide close-approach data ] Close-Approach Data   ...sorted by Date/Time (TDB) Date/Time (TDB) Time Uncertainty (days_HH:MM) Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified 1912-Oct-19 20:05 00:03 Jupiter 1.96676925987866 1.96676808628507 1.96677043347303 2.61221079568703 2.44178445892467 2419695.336650908 2.62907118307598 162.140915880944 40.0338559748253 -83.3545952595684 1854134.93619735 T 14 CATAB v2.0f-lin.ifort 2020-Dec-18 00:42:42 2020-Dec-18 00:42 1935-Jul-07 07:30 00:02 Jupiter 1.86530055083857 1.86530006218053 1.86530103950297 2.10373180892268 1.8754995984705 2427990.812154141 1.96364210912245 266.875414465912 24.1810046484553 80.4583113945486 2584804.33449789 T 14 CATAB v2.0f-lin.ifort 2020-Dec-18 00:42:42 2020-Dec-18 00:42 2019-Mar-01 18:35 < 00:01 Jupiter 1.87661189217938 1.87661135294404 1.87661243141462 2.38990983086834 2.19293282115738 2458544.274028366 0.361254710751815 128.547159200027 21.5804639719058 84.870949767365 2417414.93540537 T 14 CATAB v2.0f-lin.ifort 2020-Dec-18 00:42:42 2020-Dec-18 00:42 2041-Nov-18 18:55 < 00:01 Jupiter 1.91302962904956 1.91302907912901 1.91303017897152 1.96564635287366 1.7257565397935 2466842.288305145 0.848668649409891 154.184212435562 30.9967579463132 69.689758458262 2497629.16475186 T 14 CATAB v2.0f-lin.ifort 2020-Dec-18 00:42:42 2020-Dec-18 00:42 2125-Jul-16 03:20 00:03 Jupiter 1.84777171499248 1.84777135860702 1.84777207137784 2.24946815409688 2.03551042450272 2497396.639120600 2.85070682326867 373.091959560831 21.1284053160245 85.7843766902276 2747096.8177064 T 14 CATAB v2.0f-lin.ifort 2020-Dec-18 00:42:42 2020-Dec-18 00:42 Alternate Designations  2011 UQ300 = 2003 AN69  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-17 07:28 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin