+ 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 2459000.5 (2020-May-31.0) TDB Reference: JPL 23 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .0439857838009417 4.901e-08   a 3.012252223816085 2.6973e-08 au q 2.879755948745405 1.4839e-07 au i 10.87773275827904 5.0753e-06 deg node 74.11140528313518 2.5947e-05 deg peri 275.0941545915773 6.3039e-05 deg M 73.42929869361436 5.6947e-05 deg tp 2458611.004623284630 (2019-May-07.50462328) 0.00030315 TDB period 1909.569315139423 5.23 2.5649e-05 7.022e-08 d yr n .1885241856086881 2.5322e-09 deg/d Q 3.144748498886765 2.816e-08 au   Orbit Determination Parameters    # obs. used (total)      643      data-arc span      9585 days (26.24 yr)      first obs. used      1993-10-10      last obs. used      2020-01-07      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .54041      source      ORB      producer      Otto Matic      solution date      2020-Jan-29 17:03:48   Additional Information  Earth MOID = 1.90046 au   Jupiter MOID = 2.06811 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 ] 2020-Oct-28 02:00 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin