+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   22990 Mattbrenner (1999 VA62) Classification: Main-belt Asteroid          SPK-ID: 2022990 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 34 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1251775057036562 3.6825e-08   a 2.622356032959204 1.0435e-08 au q 2.294096045686436 9.6558e-08 au i 1.186175577240226 3.7447e-06 deg node 226.0833552237611 0.00017442 deg peri 306.4106411474816 0.00017489 deg M 231.4876204982544 1.4525e-05 deg tp 2459754.204908217408 (2022-Jun-23.70490822) 6.3933e-05 TDB period 1551.086111167674 4.25 9.2578e-06 2.535e-08 d yr n .2320954313290758 1.3853e-09 deg/d Q 2.950616020231972 1.1741e-08 au   Orbit Determination Parameters    # obs. used (total)      1388      data-arc span      9659 days (26.44 yr)      first obs. used      1994-09-03      last obs. used      2021-02-12      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .53692      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 04:15:47   Additional Information  Earth MOID = 1.29924 au   Jupiter MOID = 2.01732 au   T_jup = 3.393  [ 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 14.79   n/a E2021B10   diameter diameter 2.456 km 0.604 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.423   0.291 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   22990 Mattbrenner           Discovered 1999 Nov. 4 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro. Matthew Brenner mentored a finalist in the 2007 Intel Science Talent Search (STS), a science competition for high school seniors. He teaches at the Phillips Exeter Academy, Exeter, New Hampshire. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20070303/MPCPages.arc Last Updated: 2010-04-12 [ show close-approach data ] Alternate Designations  1999 VA62 = 1994 RF17  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-22 13:42 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin