+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   21430 Brubrew (1998 FG107) Classification: Main-belt Asteroid          SPK-ID: 2021430 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB Reference: JPL 28 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1373865830277308 3.6006e-08   a 2.387983021512341 8.0508e-09 au q 2.059906193858525 8.806e-08 au i 6.010511623661494 3.5918e-06 deg node 266.1862322890834 3.5149e-05 deg peri 70.04043910602385 3.7364e-05 deg M 331.6036574289774 1.3434e-05 deg tp 2459502.817605033672 (2021-Oct-15.31760503) 5.046e-05 TDB period 1347.86153239254 3.69 6.8162e-06 1.866e-08 d yr n .267089750206742 1.3507e-09 deg/d Q 2.716059849166158 9.1569e-09 au   Orbit Determination Parameters    # obs. used (total)      1418      data-arc span      11976 days (32.79 yr)      first obs. used      1988-09-08      last obs. used      2021-06-23      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .55926      source      ORB      producer      Otto Matic      solution date      2021-Jul-08 05:08:02   Additional Information  Earth MOID = 1.05854 au   Jupiter MOID = 2.63662 au   T_jup = 3.514  [ 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 14.94   n/a E2021B10   diameter diameter 1.927 km 0.459 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.395   0.198 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   21430 Brubrew           Discovered 1998 Mar. 31 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro. Bruce X. Brewington (b. 1987) is a finalist in the 2005 Intel Science Talent Search, a science competition for high school seniors, for his materials science project. He attends the Fairport High School, Fairport, New York. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20050224/MPCPages.arc Last Updated: 2005-02-28 Alternate Designations  1998 FG107 = 1988 RP7 = 1999 RS133  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jul-31 04:41 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin