+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   245763 (2006 EL66) Classification: Main-belt Asteroid          SPK-ID: 2245763 [ 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 15 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1313704837519001 3.7924e-08   a 2.182787999147905 9.5025e-09 au q 1.896034083772002 8.4851e-08 au i 2.50255067527104 3.6848e-06 deg node 295.6528322007796 0.00012161 deg peri 334.403468450845 0.00012317 deg M 135.6716249980213 2.0944e-05 deg tp 2458756.582476545560 (2019-Sep-30.08247655) 6.7745e-05 TDB period 1177.919911005188 3.22 7.6919e-06 2.106e-08 d yr n .3056234949732625 1.9957e-09 deg/d Q 2.469541914523807 1.0751e-08 au   Orbit Determination Parameters    # obs. used (total)      312      data-arc span      7462 days (20.43 yr)      first obs. used      2000-07-07      last obs. used      2020-12-11      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .56205      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 13:40:59   Additional Information  Earth MOID = .878431 au   Jupiter MOID = 2.611 au   T_jup = 3.667  [ hide covariance matrix ] Orbital Elements at Epoch 2457658.5 (2016-Sep-27.0) TDB Reference: JPL 15 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1310822127699945 3.7897e-08   q 1.896817861891735 8.4781e-08 au tp 2457578.887589283419 (2016-Jul-09.38758928) 6.6556e-05 TDB node 295.6812467372085 0.00012168 deg peri 334.5129177268105 0.00012325 deg i 2.501620798165193 3.6837e-06 deg   Orbit Determination Parameters    # obs. used (total)      312      data-arc span      7462 days (20.43 yr)      first obs. used      2000-07-07      last obs. used      2020-12-11      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .56205      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 13:40:59   Additional Information  Jupiter MOID = 2.611 au   T_jup = 3.667  Orbit Covariance (6×6)   e q tp node peri i e 1.436208703748118E-15 -3.198247729267602E-15 -9.827559695549179E-13 1.334206138323405E-14 -3.147871240470837E-13 7.475119231225687E-17 q -3.198247729267602E-15 7.187777120252742E-15 2.218594137949533E-12 -3.024951123987006E-14 7.107390371718237E-13 -3.403298702478812E-17 tp -9.827559695549179E-13 2.218594137949533E-12 4.42973051052113E-9 -6.988069569477277E-12 1.336219960650484E-9 5.791024440569007E-13 node 1.334206138323405E-14 -3.024951123987006E-14 -6.988069569477277E-12 1.48069603469452E-8 -1.479492660607595E-8 -6.120447440426851E-11 peri -3.147871240470837E-13 7.107390371718237E-13 1.336219960650484E-9 -1.479492660607595E-8 1.519119744744396E-8 6.13196343608795E-11 i 7.475119231225687E-17 -3.403298702478812E-17 5.791024440569007E-13 -6.120447440426851E-11 6.13196343608795E-11 1.356976753489702E-11 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 17.2   n/a MPO475980   diameter diameter 1.531 km 0.272 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.119   0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   245763 (2006 EL66)          Discovered 2006-Mar-05 by Spacewatch at Kitt Peak Reference: 20100726/Numbers.arc Last Updated: 2010-07-28 Alternate Designations  2006 EL66 = 2007 UK4  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Mar-07 22:05 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin