+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   277604 (2006 AD66) Classification: Main-belt Asteroid          SPK-ID: 2277604 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 17 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1330798471465021 4.3295e-08   a 2.785171995957025 2.2925e-08 au q 2.414521732458346 1.2182e-07 au i 8.388479707622311 6.6099e-06 deg node 171.3455185344125 3.1506e-05 deg peri 291.9004652676797 4.0679e-05 deg M 122.0489562147069 2.5185e-05 deg tp 2458624.916911203853 (2019-May-21.41691120) 0.00011748 TDB period 1697.760623221488 4.65 2.0962e-05 5.739e-08 d yr n .212044027335787 2.618e-09 deg/d Q 3.155822259455705 2.5976e-08 au   Orbit Determination Parameters    # obs. used (total)      251      data-arc span      7003 days (19.17 yr)      first obs. used      2001-03-23      last obs. used      2020-05-25      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .60166      source      ORB      producer      Otto Matic      solution date      2021-Apr-14 04:01:33   Additional Information  Earth MOID = 1.44609 au   Jupiter MOID = 2.01341 au   T_jup = 3.303  [ hide covariance matrix ] Orbital Elements at Epoch 2457704.5 (2016-Nov-12.0) TDB Reference: JPL 17 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1337828833719479 4.3341e-08   q 2.412526978716924 1.2208e-07 au tp 2456928.338290098315 (2014-Sep-27.83829010) 0.00011551 TDB node 171.3575122618181 3.1508e-05 deg peri 292.2512054412904 4.0575e-05 deg i 8.38854965476928 6.6101e-06 deg   Orbit Determination Parameters    # obs. used (total)      251      data-arc span      7003 days (19.17 yr)      first obs. used      2001-03-23      last obs. used      2020-05-25      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .60166      source      ORB      producer      Otto Matic      solution date      2021-Apr-14 04:01:33   Additional Information  Jupiter MOID = 2.01341 au   T_jup = 3.303  Orbit Covariance (6×6)   e q tp node peri i e 1.878449714128168E-15 -5.220477390938647E-15 9.251417365020583E-13 1.367922624613114E-15 1.471408233421047E-13 -2.771252254582719E-15 q -5.220477390938647E-15 1.490339381035253E-14 -2.658455586144927E-12 -3.361452647381655E-15 -3.885847712887037E-13 9.311890385065463E-15 tp 9.251417365020583E-13 -2.658455586144927E-12 1.334286846532634E-8 1.108633101470199E-11 2.957788503226252E-9 -5.320293030584349E-12 node 1.367922624613114E-15 -3.361452647381655E-15 1.108633101470199E-11 9.927383647125329E-10 -9.787235200474356E-10 1.669436951211994E-11 peri 1.471408233421047E-13 -3.885847712887037E-13 2.957788503226252E-9 -9.787235200474356E-10 1.64630390765352E-9 -1.746904852834659E-11 i -2.771252254582719E-15 9.311890385065463E-15 -5.320293030584349E-12 1.669436951211994E-11 -1.746904852834659E-11 4.369386826427282E-11 [ 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 16.76   n/a E2021B55   277604 (2006 AD66)          Discovered 2006-Jan-08 by Mt. Lemmon Survey at Mount Lemmon Reference: 20110517/Numbers.arc Last Updated: 2011-05-20 [ show close-approach data ] Alternate Designations  2006 AD66 = 2001 FO194  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-19 01:01 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin