+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   146336 (2001 OK13) Classification: Main-belt Asteroid          SPK-ID: 2146336 [ 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 13 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .3334031663797624 6.3047e-08   a 2.551443718714454 1.7806e-08 au q 1.700784304055299 1.6582e-07 au i 3.520953221796578 6.1638e-06 deg node 102.5031244309194 9.0535e-05 deg peri 243.0801369290005 9.1519e-05 deg M 212.9449278591208 2.1832e-05 deg tp 2459608.571885292075 (2022-Jan-29.07188529) 9.6333e-05 TDB period 1488.597948498059 4.08 1.5583e-05 4.266e-08 d yr n .241838301848546 2.5316e-09 deg/d Q 3.402103133373608 2.3742e-08 au   Orbit Determination Parameters    # obs. used (total)      415      data-arc span      11126 days (30.46 yr)      first obs. used      1989-11-05      last obs. used      2020-04-22      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .60742      source      ORB      producer      Otto Matic      solution date      2020-May-20 23:54:05   Additional Information  Earth MOID = .697165 au   Jupiter MOID = 2.02806 au   T_jup = 3.357  [ 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 16.0   n/a MPO417787   146336 (2001 OK13)          Discovered 2001-Jul-20 by LINEAR at Socorro Reference: 20070106/Numbers.arc Last Updated: 2007-01-09 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Aug-09 04:02 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin