+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   15844 (1995 UQ5) Classification: Main-belt Asteroid          SPK-ID: 2015844 [ 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 37 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1776618191278445 1.8365e-08   a 3.046802510337418 1.5959e-08 au q 2.505502033827589 5.841e-08 au i 10.67559844433283 9.9007e-07 deg node 317.7903963884685 8.2365e-06 deg peri 338.5606836553696 1.1808e-05 deg M 305.61896003154 5.2024e-06 deg tp 2459493.933633831069 (2021-Oct-06.43363383) 2.8787e-05 TDB period 1942.517249402582 5.32 1.5262e-05 4.179e-08 d yr n .1853265396282671 1.4561e-09 deg/d Q 3.588102986847247 1.8794e-08 au   Orbit Determination Parameters    # obs. used (total)      1938      data-arc span      15113 days (41.38 yr)      first obs. used      1979-09-14      last obs. used      2021-01-29      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .4714      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 01:10:52   Additional Information  Earth MOID = 1.4913 au   Jupiter MOID = 1.68254 au   T_jup = 3.188  [ 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 12.76   n/a E2021B10   diameter diameter 12.670 km 0.092 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.086   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   15844 (1995 UQ5)          Discovered 1995-Oct-20 by Shimizu, Y., Urata, T. at Nachi-Katsuura Reference: 20000726/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  1995 UQ5 = 1979 RO1 = 1990 TF15  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-22 18:54 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin