+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   152590 (1995 OC1) Classification: Main-belt Asteroid          SPK-ID: 2152590 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 17 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1808190813443247 4.5387e-08   a 2.648521354526689 1.8048e-08 au q 2.169618156280347 1.2705e-07 au i 10.50825165791027 8.2509e-06 deg node 195.3678828299389 2.4178e-05 deg peri 105.934005705286 3.4345e-05 deg M 329.1173068529171 2.6714e-05 deg tp 2459335.556755003476 (2021-May-01.05675500) 0.00011749 TDB period 1574.358543462845 4.31 1.6093e-05 4.406e-08 d yr n .2286645576986358 2.3373e-09 deg/d Q 3.127424552773032 2.1312e-08 au   Orbit Determination Parameters    # obs. used (total)      257      data-arc span      10451 days (28.61 yr)      first obs. used      1991-10-07      last obs. used      2020-05-18      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .5694      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 19:27:48   Additional Information  Earth MOID = 1.1813 au   Jupiter MOID = 2.21082 au   T_jup = 3.344  [ 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 16.69   n/a E2021B55   152590 (1995 OC1)          Discovered 1995-Jul-30 by Pravec, P. at Ondrejov Reference: 20070402/Numbers.arc Last Updated: 2007-04-04 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-19 17:07 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin