+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   15272 (1991 GH) Classification: Main-belt Asteroid          SPK-ID: 2015272 [ 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 43 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .09775988279835089 1.3307e-08   a 2.662260970492353 9.8788e-09 au q 2.401998650038397 3.9258e-08 au i 13.27838761879178 6.837e-07 deg node 194.8935930834072 3.3612e-06 deg peri 13.00593487097092 1.1639e-05 deg M 286.5192634320111 1.2927e-05 deg tp 2459524.351091478614 (2021-Nov-05.85109148) 5.7383e-05 TDB period 1586.625262315218 4.34 8.8312e-06 2.418e-08 d yr n .2268966772120372 1.2629e-09 deg/d Q 2.92252329094631 1.0845e-08 au   Orbit Determination Parameters    # obs. used (total)      2803      data-arc span      10939 days (29.95 yr)      first obs. used      1991-04-03      last obs. used      2021-03-15      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .41619      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 00:53:40   Additional Information  Earth MOID = 1.39919 au   Jupiter MOID = 2.03556 au   T_jup = 3.340  [ 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 12.97   n/a E2021B10   diameter diameter 7.033 km 0.159 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.297   0.023 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   15272 (1991 GH)          Discovered 1991-Apr-03 by Sugie, A. at Dynic Reference: 20000621/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  1991 GH = 1991 GE1 = 2000 GR123  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-16 09:35 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin