+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   118477 (2000 AQ168) Classification: Main-belt Asteroid          SPK-ID: 2118477 [ 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 22 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .09527901973867851 3.9576e-08   a 2.207864988556309 8.1747e-09 au q 1.997501776731315 8.71e-08 au i 3.799248920143747 3.3489e-06 deg node 117.5170443618269 6.6619e-05 deg peri 78.5144190789328 6.998e-05 deg M 74.06430282633525 1.9424e-05 deg tp 2458953.973486220560 (2020-Apr-14.47348622) 6.4906e-05 TDB period 1198.276923887301 3.28 6.655e-06 1.822e-08 d yr n .3004313884574634 1.6685e-09 deg/d Q 2.418228200381303 8.9535e-09 au   Orbit Determination Parameters    # obs. used (total)      737      data-arc span      10060 days (27.54 yr)      first obs. used      1992-11-21      last obs. used      2020-06-07      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .53215      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 16:57:27   Additional Information  Earth MOID = .999407 au   Jupiter MOID = 2.53972 au   T_jup = 3.651  [ 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 16.27   n/a E2021B55   diameter diameter 1.653 km 0.513 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.257   0.134 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   118477 (2000 AQ168)          Discovered 2000-Jan-12 by Comba, P. G. at Prescott Reference: 20051116/Numbers.arc Last Updated: 2005-11-21 [ show close-approach data ] Alternate Designations  2000 AQ168 = 2000 CF146  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-23 09:26 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin