+ 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 2459396.5 (2021-Jul-01.0) TDB Reference: JPL 35 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .09694975292385141 2.7467e-08   a 2.252498949773545 5.9528e-09 au q 2.034119733131765 6.2242e-08 au i 4.015817136190384 4.0553e-06 deg node 43.19159706858466 4.4857e-05 deg peri 60.69544201553764 4.9887e-05 deg M 121.3345363862224 2.1582e-05 deg tp 2458980.323784235595 (2020-May-10.82378424) 7.3683e-05 TDB period 1234.796308927904 3.38 4.8949e-06 1.34e-08 d yr n .2915460609957324 1.1557e-09 deg/d Q 2.470878166415325 6.5299e-09 au   Orbit Determination Parameters    # obs. used (total)      1788      data-arc span      10425 days (28.54 yr)      first obs. used      1992-11-27      last obs. used      2021-06-13      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .49713      source      ORB      producer      Otto Matic      solution date      2021-Jul-08 03:57:30   Additional Information  Earth MOID = 1.05474 au   Jupiter MOID = 2.62618 au   T_jup = 3.617  [ 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 15.01   n/a MPCxxxxx   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 ] 2021-Aug-01 18:26 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin