+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   22265 (1981 EE11) Classification: Main-belt Asteroid          SPK-ID: 2022265 [ 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 28 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .157728498655427 3.268e-08   a 2.233372449551448 6.6927e-09 au q 1.881105966145304 7.4643e-08 au i 2.905952125276993 3.523e-06 deg node 319.8725365720588 7.2933e-05 deg peri 316.5927602981633 7.3803e-05 deg M 248.3623038137504 1.1979e-05 deg tp 2459578.549374099194 (2021-Dec-30.04937410) 4.1018e-05 TDB period 1219.102322289531 3.34 5.4799e-06 1.5e-08 d yr n .2952992488144091 1.3274e-09 deg/d Q 2.585638932957591 7.7484e-09 au   Orbit Determination Parameters    # obs. used (total)      1301      data-arc span      15085 days (41.30 yr)      first obs. used      1979-11-26      last obs. used      2021-03-15      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .55017      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 04:02:58   Additional Information  Earth MOID = .864148 au   Jupiter MOID = 2.5307 au   T_jup = 3.622  [ 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 15.43   n/a E2021B10   22265 (1981 EE11)          Discovered 1981-Mar-01 by Bus, S. J. at Siding Spring Reference: 20010309/Numbers.arc Last Updated: 2004-04-19 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-19 20:49 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin