+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   120517 (1993 UU8) Classification: Main-belt Asteroid          SPK-ID: 2120517 [ 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 26 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .04406974486676044 4.6885e-08   a 3.012865428113259 2.5547e-08 au q 2.880089217378424 1.3926e-07 au i 10.87650206955612 4.7885e-06 deg node 74.10998074030461 2.3944e-05 deg peri 275.3581151112902 5.8357e-05 deg M 110.8541312239429 5.3252e-05 deg tp 2458612.310307213443 (2019-May-08.81030721) 0.00028334 TDB period 1910.152441458366 5.23 2.4295e-05 6.652e-08 d yr n .1884666334405994 2.3971e-09 deg/d Q 3.145641638848093 2.6673e-08 au   Orbit Determination Parameters    # obs. used (total)      745      data-arc span      9963 days (27.28 yr)      first obs. used      1993-10-10      last obs. used      2021-01-19      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .52175      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 09:25:14   Additional Information  Earth MOID = 1.89911 au   Jupiter MOID = 2.06711 au   T_jup = 3.220  [ 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 14.8   n/a MPO453676   diameter diameter 3.957 km 1.474 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.163   0.112 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   120517 (1993 UU8)          Discovered 1993-Oct-20 by Elst, E. W. at La Silla Reference: 20060314/Numbers.arc Last Updated: 2006-03-23 [ show close-approach data ] Alternate Designations  1993 UU8 = 2001 FY175  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Feb-28 15:02 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin