+ 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 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 33 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .09696853932888991 3.3637e-08   a 2.252838214224041 6.9782e-09 au q 2.034383783246431 7.8016e-08 au i 4.015597243405771 4.0636e-06 deg node 43.19271486031332 5.3264e-05 deg peri 60.78596592933219 5.8195e-05 deg M 64.10127145637568 2.2299e-05 deg tp 2458980.583620795101 (2020-May-11.08362080) 7.6473e-05 TDB period 1235.075291254449 3.38 5.7385e-06 1.571e-08 d yr n .2914802057406177 1.3543e-09 deg/d Q 2.471292645201651 7.6549e-09 au   Orbit Determination Parameters    # obs. used (total)      1569      data-arc span      10333 days (28.29 yr)      first obs. used      1992-11-27      last obs. used      2021-03-13      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .51122      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 01:11:59   Additional Information  Earth MOID = 1.05461 au   Jupiter MOID = 2.62581 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 ] 2021-Apr-15 12:02 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin