+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   17925 Dougweinberg (1999 GQ17) Classification: Main-belt Asteroid          SPK-ID: 2017925 [ 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 33 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1346866993354662 3.8315e-08   a 2.398019382035668 8.1652e-09 au q 2.075038066526809 9.384e-08 au i 3.485051312757567 3.4489e-06 deg node 83.19789869845012 6.1412e-05 deg peri 144.576966412993 6.2684e-05 deg M 277.3951986637428 1.3312e-05 deg tp 2459511.729138527113 (2021-Oct-24.22913853) 5.0855e-05 TDB period 1356.367766247294 3.71 6.9276e-06 1.897e-08 d yr n .2654147414576384 1.3556e-09 deg/d Q 2.721000697544526 9.2649e-09 au   Orbit Determination Parameters    # obs. used (total)      1453      data-arc span      16007 days (43.82 yr)      first obs. used      1977-05-18      last obs. used      2021-03-15      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .52497      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 02:17:49   Additional Information  Earth MOID = 1.06489 au   Jupiter MOID = 2.26127 au   T_jup = 3.513  [ 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 14.9   n/a MPO502305   diameter diameter 2.860 km 0.253 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.285   0.052 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   17925 Dougweinberg           Discovered 1999 Apr. 15 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro. Douglas Stanley Weinberg (b. 1985) was awarded third place in the 2003 Intel International Science and Engineering Fair for his zoology project. He attends the Yorktown High School, Arlington, Virginia, U.S.A. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20040614/MPCPages.arc Last Updated: 2009-12-11 Alternate Designations  1999 GQ17 = 1977 KN1 = 1997 WS51  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-14 16:07 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin