+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   68948 Mikeoates (2002 PX157) Classification: Main-belt Asteroid          SPK-ID: 2068948 [ 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 20 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .03621084060954802 3.7878e-08   a 2.793551522056217 1.6131e-08 au q 2.692394673156479 1.0885e-07 au i 1.209002898712606 5.2694e-06 deg node 40.51817383234906 0.00018874 deg peri 245.0744952542458 0.00020182 deg M 323.0365724217492 7.0831e-05 deg tp 2459175.606872148706 (2020-Nov-22.10687215) 0.00033535 TDB period 1705.428259868022 4.67 1.4771e-05 4.044e-08 d yr n .2110906735108631 1.8283e-09 deg/d Q 2.894708370955955 1.6715e-08 au   Orbit Determination Parameters    # obs. used (total)      661      data-arc span      9773 days (26.76 yr)      first obs. used      1993-09-14      last obs. used      2020-06-17      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .55022      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 22:07:06   Additional Information  Earth MOID = 1.67626 au   Jupiter MOID = 2.14831 au   T_jup = 3.327  [ 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 15.8   n/a MPO436264   diameter diameter 3.807 km 0.230 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.070   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   68948 Mikeoates           Discovered 2002 Aug. 8 by S. F. Hönig on NEAT images taken at Palomar. Through 2003 Michael Oates (b. 1957) has been the most successful SOHO comet hunter. Using his personal computer and fast Internet connections to scan through the SOHO LASCO image archive, he is credited with 138 near-sun comet discoveries. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20040107/MPCPages.arc Last Updated: 2004-01-07 Alternate Designations  2002 PX157 = 2000 AV213  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jan-21 19:04 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin