+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   14408 (1991 PC16) Classification: Main-belt Asteroid          SPK-ID: 2014408 [ 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 30 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1971934937988723 3.6027e-08   a 3.157948892111185 1.4936e-08 au q 2.535221916837502 1.1353e-07 au i .4819664603491048 3.4519e-06 deg node 84.78197884060016 0.00049171 deg peri 239.7949217347081 0.00049179 deg M 56.43201832946849 8.6428e-06 deg tp 2458679.186365061063 (2019-Jul-14.68636506) 4.9228e-05 TDB period 2049.774436609396 5.61 1.4542e-05 3.981e-08 d yr n .1756290807272866 1.246e-09 deg/d Q 3.780675867384867 1.7881e-08 au   Orbit Determination Parameters    # obs. used (total)      1714      data-arc span      12438 days (34.05 yr)      first obs. used      1986-10-23      last obs. used      2020-11-11      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .50545      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 02:56:33   Additional Information  Earth MOID = 1.52324 au   Jupiter MOID = 1.56193 au   T_jup = 3.175  [ 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 13.7   n/a MPO324441   diameter diameter 9.326 km 0.310 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.074   0.023 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   14408 (1991 PC16)          Discovered 1991-Aug-06 by Holt, H. E. at Palomar Reference: 20000418/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  1991 PC16 = 1986 UT4  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-21 22:11 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin