+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   434420 (2005 MC13) Classification: Main-belt Asteroid          SPK-ID: 2434420 [ 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 15 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2536626825489238 4.3132e-08   a 2.260613128954986 1.1593e-08 au q 1.687179938458948 1.0192e-07 au i 5.150666318672994 4.3863e-06 deg node 111.7361009458098 6.1836e-05 deg peri 179.8668952134364 6.4521e-05 deg M 142.6680036713497 2.0045e-05 deg tp 2458508.503652482317 (2019-Jan-25.00365248) 6.6309e-05 TDB period 1241.474476045636 3.40 9.5498e-06 2.615e-08 d yr n .2899777699390789 2.2306e-09 deg/d Q 2.834046319451024 1.4534e-08 au   Orbit Determination Parameters    # obs. used (total)      167      data-arc span      7827 days (21.43 yr)      first obs. used      1998-06-21      last obs. used      2019-11-25      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .60913      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 10:10:28   Additional Information  Earth MOID = .670966 au   Jupiter MOID = 2.36419 au   T_jup = 3.572  [ 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 18.0   n/a MPO434584   434420 (2005 MC13)          Discovered 2005-Jun-29 by NEAT at Palomar Reference: Last Updated: 2015-06-04 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jan-27 02:24 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin