+ 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 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 26 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1372086222016201 3.8683e-08   a 2.387110144860813 9.5249e-09 au q 2.059578050840951 9.2852e-08 au i 6.011794608126906 3.6443e-06 deg node 266.1889107676336 3.8685e-05 deg peri 70.16332272386572 4.1362e-05 deg M 279.1122729589163 1.7084e-05 deg tp 2459503.182453507265 (2021-Oct-15.68245351) 6.4878e-05 TDB period 1347.122576547003 3.69 8.0628e-06 2.207e-08 d yr n .26723626065474 1.5995e-09 deg/d Q 2.714642238880675 1.0832e-08 au   Orbit Determination Parameters    # obs. used (total)      1303      data-arc span      11580 days (31.70 yr)      first obs. used      1988-09-08      last obs. used      2020-05-23      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .56853      source      ORB      producer      Otto Matic      solution date      2020-Aug-25 01:44:15   Additional Information  Earth MOID = 1.05715 au   Jupiter MOID = 2.6392 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-Apr-11 03:13 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin