+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   14658 (1999 AC10) Classification: Main-belt Asteroid          SPK-ID: 2014658 [ 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 34 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .08991609085540332 2.4067e-08   a 2.980816206206317 1.6028e-08 au q 2.712792865385811 7.6987e-08 au i 8.966454152027437 7.4701e-07 deg node 278.4523739825282 5.1053e-06 deg peri 40.05025611192995 1.2321e-05 deg M 258.7162414439769 1.0699e-05 deg tp 2459729.357336597409 (2022-May-29.85733660) 5.6942e-05 TDB period 1879.754897422744 5.15 1.5161e-05 4.151e-08 d yr n .1915143301361159 1.5447e-09 deg/d Q 3.248839547026823 1.7469e-08 au   Orbit Determination Parameters    # obs. used (total)      1875      data-arc span      10794 days (29.55 yr)      first obs. used      1991-08-17      last obs. used      2021-03-06      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .48055      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 00:35:02   Additional Information  Earth MOID = 1.70411 au   Jupiter MOID = 1.99543 au   T_jup = 3.235  [ 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 12.85   n/a E2021B10   diameter diameter 10.461 km 0.188 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.147   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   14658 (1999 AC10)          Discovered 1999-Jan-13 by Korlevic, K. at Visnjan Reference: 20000418/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  1999 AC10 = 1991 RM34 = 1992 XH  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-14 11:36 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin