+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   175194 (2005 EL268) Classification: Main-belt Asteroid          SPK-ID: 2175194 [ 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 24 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1825235778954185 5.692e-08   a 2.472882821844749 1.5334e-08 au q 2.021523401485526 1.3985e-07 au i 15.20676275316609 6.4284e-06 deg node 1.688897196518075 1.3663e-05 deg peri 8.86916273041316 1.9593e-05 deg M 198.6825411810826 1.2031e-05 deg tp 2459836.976839253879 (2022-Sep-14.47683925) 4.8447e-05 TDB period 1420.377334288423 3.89 1.3211e-05 3.617e-08 d yr n .2534537769010176 2.3575e-09 deg/d Q 2.924242242203971 1.8133e-08 au   Orbit Determination Parameters    # obs. used (total)      743      data-arc span      7528 days (20.61 yr)      first obs. used      1999-10-31      last obs. used      2020-06-10      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .50227      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 21:04:24   Additional Information  Earth MOID = 1.02016 au   Jupiter MOID = 2.54364 au   T_jup = 3.412  [ 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 15.66   n/a E2021B55   diameter diameter 4.920 km 0.118 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.035   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   175194 (2005 EL268)          Discovered 2005-Mar-14 by Mt. Lemmon Survey at Mount Lemmon Reference: 20080122/Numbers.arc Last Updated: 2008-01-28 Alternate Designations  2005 EL268 = 2003 XG39  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-20 14:59 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin