+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   259183 (2003 AK16) Classification: Outer Main-belt Asteroid          SPK-ID: 2259183 [ 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 22 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1212183598649028 5.2736e-08   a 3.979173919299213 7.7189e-08 au q 3.496824983184565 2.4319e-07 au i 10.40875013011278 5.9306e-06 deg node 254.5117593472944 3.6468e-05 deg peri 305.48728969 4.7826e-05 deg M 317.2915558000431 3.2818e-05 deg tp 2459344.452966383205 (2021-May-09.95296638) 0.00026606 TDB period 2899.264307503822 7.94 8.4361e-05 2.31e-07 d yr n .1241694312133788 3.613e-09 deg/d Q 4.461522855413861 8.6546e-08 au   Orbit Determination Parameters    # obs. used (total)      365      data-arc span      6368 days (17.43 yr)      first obs. used      2002-12-05      last obs. used      2020-05-12      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .54908      source      ORB      producer      Otto Matic      solution date      2020-Nov-11 23:11:51   Additional Information  Earth MOID = 2.50787 au   Jupiter MOID = .75304 au   T_jup = 3.015  [ 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 14.0   n/a MPO503200   diameter diameter 8.022 km 0.729 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)   geometric albedo albedo 0.091   0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)   259183 (2003 AK16)          Discovered 2003-Jan-04 by Spacewatch at Kitt Peak Reference: 20110119/Numbers.arc Last Updated: 2011-01-25 [ show close-approach data ] Alternate Designations  2003 AK16 = 2005 GW37  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-22 23:31 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin