+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   4556 Gumilyov (1987 QW10) Classification: Main-belt Asteroid          SPK-ID: 2004556 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 45 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1447333876479408 1.1573e-08   a 2.311046354715344 5.9837e-09 au q 1.976560786785968 2.633e-08 au i 4.752550728149356 2.7805e-07 deg node 111.8484464392776 9.5125e-06 deg peri 213.7469105641078 1.168e-05 deg M 187.7100894342475 5.9604e-06 deg tp 2459814.641940030872 (2022-Aug-23.14194003) 2.2228e-05 TDB period 1283.250410224903 3.51 4.9838e-06 1.364e-08 d yr n .2805376075717803 1.0895e-09 deg/d Q 2.64553192264472 6.8497e-09 au   Orbit Determination Parameters    # obs. used (total)      2707      data-arc span      14780 days (40.47 yr)      first obs. used      1980-10-05      last obs. used      2021-03-24      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .4757      source      ORB      producer      Otto Matic      solution date      2021-May-03 21:42:49   Additional Information  Earth MOID = .964497 au   Jupiter MOID = 2.65716 au   T_jup = 3.566  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 13.70   n/a MPCxxxxx   diameter diameter 5.224 km 0.181 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.282   0.032 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   4556 Gumilyov (1987 QW10)          Discovered 1987-Aug-27 by Karachkina, L. G. at Nauchnyj Reference: DISCOVERY.DB Last Updated: 2003-08-29 Alternate Designations  1987 QW10 = 1980 TJ1 = 1984 YK3 = 1984 YR2  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jun-26 22:45 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin