+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   392561 (2011 SQ79) Classification: Main-belt Asteroid          SPK-ID: 2392561 [ 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 12 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .06662876695614621 5.9722e-08   a 2.680978131706958 2.9893e-08 au q 2.502347864554931 1.5942e-07 au i 4.226333090337948 1.325e-05 deg node 183.3074912528513 8.5075e-05 deg peri 97.55821625603294 0.00012902 deg M 64.69600836702853 9.934e-05 deg tp 2458712.353519295763 (2019-Aug-16.85351930) 0.00044095 TDB period 1603.386911678333 4.39 2.6816e-05 7.342e-08 d yr n .2245247216239109 3.7551e-09 deg/d Q 2.859608398858986 3.1884e-08 au   Orbit Determination Parameters    # obs. used (total)      92      data-arc span      9459 days (25.90 yr)      first obs. used      1994-12-01      last obs. used      2020-10-24      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .62399      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 16:24:23   Additional Information  Earth MOID = 1.49043 au   Jupiter MOID = 2.21807 au   T_jup = 3.369  [ 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 17.2   n/a MPO440694   392561 (2011 SQ79)          Discovered 2007-Nov-02 by Mt. Lemmon Survey at Mount Lemmon Reference: Last Updated: 2014-04-17 [ 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 2200-Jan-15 13:50 00:06 Eunom 0.0236672859357543 0.0235786612076926 0.0237559343150576 6.14749408238447 6.14749398590225 2524608.076284009 6.02015571444598 4573.02833527107 152.12587004066 -14.9650684580264 6052.94242791154 T 12 CATAB v2.0f-lin.ifort 2020-Nov-12 16:24:24 2020-Nov-12 16:24 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Nov-30 08:50 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin