+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   120616 (1995 WE33) Classification: Main-belt Asteroid          SPK-ID: 2120616 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 19 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1595335239991387 3.8273e-08   a 2.72984837532377 1.8139e-08 au q 2.294346044025045 1.0513e-07 au i 3.716434659811475 5.9497e-06 deg node 152.5704050139165 7.4678e-05 deg peri 288.0358314866817 7.7915e-05 deg M 127.6487990376438 2.2997e-05 deg tp 2458416.355290595433 (2018-Oct-24.85529060) 0.00010238 TDB period 1647.427135790198 4.51 1.642e-05 4.496e-08 d yr n .2185225629583453 2.178e-09 deg/d Q 3.165350706622494 2.1033e-08 au   Orbit Determination Parameters    # obs. used (total)      531      data-arc span      9839 days (26.94 yr)      first obs. used      1993-05-20      last obs. used      2020-04-27      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .58375      source      ORB      producer      Otto Matic      solution date      2020-May-20 20:39:02   Additional Information  Earth MOID = 1.31342 au   Jupiter MOID = 2.07923 au   T_jup = 3.333  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 15.5   n/a MPO417628   diameter diameter 4.367 km 0.200 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.058   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   120616 (1995 WE33)          Discovered 1995-Nov-20 by Spacewatch at Kitt Peak Reference: 20060314/Numbers.arc Last Updated: 2006-03-23 [ show close-approach data ] Alternate Designations  1995 WE33 = 2000 YW45  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Oct-24 04:26 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin