+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   187367 (2005 UB278) Classification: Outer Main-belt Asteroid          SPK-ID: 2187367 [ 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 19 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .01035169502807299 4.1373e-08   a 3.232880023697303 3.0189e-08 au q 3.199414235629639 1.2127e-07 au i 3.390971035856793 5.4342e-06 deg node 231.5500927926049 6.633e-05 deg peri 274.0550471293428 0.00031156 deg M 117.1922380502332 0.00030258 deg tp 2458509.339109032768 (2019-Jan-25.83910903) 0.0017843 TDB period 2123.160414784043 5.81 2.974e-05 8.142e-08 d yr n .1695585493650122 2.375e-09 deg/d Q 3.266345811764967 3.0502e-08 au   Orbit Determination Parameters    # obs. used (total)      422      data-arc span      6729 days (18.42 yr)      first obs. used      2002-04-04      last obs. used      2020-09-05      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .52648      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 21:55:07   Additional Information  Earth MOID = 2.20993 au   Jupiter MOID = 1.71506 au   T_jup = 3.183  [ 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 15.38   n/a E2021B55   diameter diameter 4.965 km 1.320 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.060   0.036 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   187367 (2005 UB278)          Discovered 2005-Oct-24 by Spacewatch at Kitt Peak Reference: 20080520/Numbers.arc Last Updated: 2008-05-22 [ show close-approach data ] Alternate Designations  2005 UB278 = 2002 GR98  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-21 09:19 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin