+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   27493 Derikesibill (2000 GU105) Classification: Main-belt Asteroid          SPK-ID: 2027493 [ 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 22 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .03145899816971642 4.4808e-08   a 2.727971528575274 1.2135e-08 au q 2.642152277250786 1.2638e-07 au i 3.986699737478824 4.2038e-06 deg node 252.2520944445035 5.9526e-05 deg peri 167.3448167753169 9.1427e-05 deg M 310.6214932813137 6.7482e-05 deg tp 2459226.232259213341 (2021-Jan-11.73225921) 0.00030821 TDB period 1645.72844982471 4.51 1.0981e-05 3.006e-08 d yr n .2187481173083836 1.4596e-09 deg/d Q 2.813790779899762 1.2517e-08 au   Orbit Determination Parameters    # obs. used (total)      1255      data-arc span      10815 days (29.61 yr)      first obs. used      1991-04-08      last obs. used      2020-11-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .51265      source      ORB      producer      Otto Matic      solution date      2020-Dec-17 20:53:11   Additional Information  Earth MOID = 1.65449 au   Jupiter MOID = 2.29988 au   T_jup = 3.351  [ 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 14.4   n/a MPO439291   diameter diameter 6.911 km 0.128 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.077   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   27493 Derikesibill           Discovered 2000 Apr. 7 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro. Derik Esibill mentored a finalist in the 2011 Broadcom MASTERS, a math and science competition for middle-school students. He teaches at the Kailua Intermediate School, Kailua, Hawaii. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20111210/MPCPages.arc Last Updated: 2011-12-12 [ show close-approach data ] Alternate Designations  2000 GU105 = 1991 GU7  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-26 13:05 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin