+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   117460 (2005 AM74) Classification: Main-belt Asteroid          SPK-ID: 2117460 [ 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 23 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1230926639153957 6.4658e-08   a 3.12222183698675 3.0341e-08 au q 2.737899233737231 1.9051e-07 au i 4.077392135609625 5.7641e-06 deg node 328.1384468150177 6.5473e-05 deg peri 351.7919502302127 6.8457e-05 deg M 86.57203842554232 2.0272e-05 deg tp 2458515.915849967628 (2019-Feb-01.41584997) 0.00011259 TDB period 2015.088210747085 5.52 2.9373e-05 8.042e-08 d yr n .1786522287610087 2.6041e-09 deg/d Q 3.50654444023627 3.4076e-08 au   Orbit Determination Parameters    # obs. used (total)      485      data-arc span      9519 days (26.06 yr)      first obs. used      1994-01-11      last obs. used      2020-02-03      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .59447      source      ORB      producer      Otto Matic      solution date      2020-Feb-24 05:46:38   Additional Information  Earth MOID = 1.72508 au   Jupiter MOID = 1.79158 au   T_jup = 3.200  [ 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 15.0   n/a MPO453645   diameter diameter 5.209 km 0.731 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.078   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   117460 (2005 AM74)          Discovered 2005-Jan-15 by Spacewatch at Kitt Peak Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 [ show close-approach data ] Alternate Designations  2005 AM74 = 2003 WH112  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-23 04:27 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin