+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   268660 (2006 EX20) Classification: Main-belt Asteroid          SPK-ID: 2268660 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 14 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1461964577905946 1.2707e-07   a 2.919156016974697 2.7408e-08 au q 2.492385747554895 3.7366e-07 au i 6.958718579076514 9.7823e-06 deg node 345.7010801526571 4.3961e-05 deg peri 203.0555321033324 4.87e-05 deg M 286.7919094505001 2.3803e-05 deg tp 2459370.959695932581 (2021-Jun-05.45969593) 0.00012323 TDB period 1821.731580958986 4.99 2.5656e-05 7.024e-08 d yr n .1976141840887946 2.7831e-09 deg/d Q 3.345926286394498 3.1415e-08 au   Orbit Determination Parameters    # obs. used (total)      242      data-arc span      8712 days (23.85 yr)      first obs. used      1996-03-17      last obs. used      2020-01-23      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .63636      source      ORB      producer      Otto Matic      solution date      2020-Feb-25 13:05:45   Additional Information  Earth MOID = 1.4954 au   Jupiter MOID = 1.63224 au   T_jup = 3.253  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 16.4   n/a MPO454996   diameter diameter 3.711 km 0.942 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.035   0.019 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   268660 (2006 EX20)          Discovered 2006-Mar-03 by Spacewatch at Kitt Peak Reference: 20110319/Numbers.arc Last Updated: 2011-03-23 [ show close-approach data ] Alternate Designations  2006 EX20 = 1996 FE6  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-23 21:54 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin