+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   277190 (2005 QT31) Classification: Main-belt Asteroid          SPK-ID: 2277190 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 11 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1583640324943747 4.624e-08   a 2.227703725420818 1.3072e-08 au q 1.874915580260436 1.0805e-07 au i 5.642971207754123 4.2087e-06 deg node 248.5471910525358 4.9141e-05 deg peri 75.02114719427254 5.2149e-05 deg M 162.8196100805134 1.5206e-05 deg tp 2458451.226327481295 (2018-Nov-28.72632748) 5.0268e-05 TDB period 1214.463798365278 3.33 1.069e-05 2.927e-08 d yr n .2964271149824111 2.6091e-09 deg/d Q 2.580491870581199 1.5142e-08 au   Orbit Determination Parameters    # obs. used (total)      263      data-arc span      5749 days (15.74 yr)      first obs. used      2002-10-15      last obs. used      2018-07-12      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .53689      source      ORB      producer      Otto Matic      solution date      2018-Oct-31 04:26:07   Additional Information  Earth MOID = .872175 au   Jupiter MOID = 2.72826 au   T_jup = 3.622  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 17.3   n/a MPO433793   277190 (2005 QT31)          Discovered 2005-Aug-24 by NEAT at Palomar Reference: 20110517/Numbers.arc Last Updated: 2011-05-20 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Jul-16 18:18 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin