+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   15885 (1997 EE) Classification: Main-belt Asteroid          SPK-ID: 2015885 [ 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 29 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .09698433625737898 3.5918e-08   a 2.253018352054712 7.3012e-09 au q 2.034510862604992 8.3716e-08 au i 4.01552867152856 4.0818e-06 deg node 43.19808730750731 5.4336e-05 deg peri 60.85108005493613 5.934e-05 deg M 5.747371859293669 2.2469e-05 deg tp 2458980.779754497758 (2020-May-11.27975450) 7.7098e-05 TDB period 1235.22342987556 3.38 6.0044e-06 1.644e-08 d yr n .2914452489265585 1.4167e-09 deg/d Q 2.471525841504432 8.0093e-09 au   Orbit Determination Parameters    # obs. used (total)      1516      data-arc span      10011 days (27.41 yr)      first obs. used      1992-11-27      last obs. used      2020-04-25      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .51169      source      ORB      producer      Otto Matic      solution date      2020-May-20 04:16:20   Additional Information  Earth MOID = 1.05491 au   Jupiter MOID = 2.62599 au   T_jup = 3.616  [ 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 15.0   n/a MPO502291   diameter diameter 2.241 km 0.243 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.386   0.119 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   15885 (1997 EE)          Discovered 1997-Mar-01 by Kobayashi, T. at Oizumi Reference: 20000726/Numbers.arc Last Updated: 2004-04-19 Alternate Designations  1997 EE = 2000 AB154  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Aug-08 18:57 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin