+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   21644 Vinay (1999 NA50) Classification: Main-belt Asteroid          SPK-ID: 2021644 [ 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 35 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2116042305029403 3.3536e-08   a 2.413203418980647 7.0845e-09 au q 1.902559366460182 8.1536e-08 au i 9.090617517068674 4.4463e-06 deg node 165.3132431942239 1.7337e-05 deg peri 224.6612958050524 1.9556e-05 deg M 194.7365454086064 8.8229e-06 deg tp 2459829.084475537529 (2022-Sep-06.58447554) 3.4504e-05 TDB period 1369.270730501207 3.75 6.0297e-06 1.651e-08 d yr n .2629136751270699 1.1578e-09 deg/d Q 2.923847471501111 8.5836e-09 au   Orbit Determination Parameters    # obs. used (total)      1487      data-arc span      17317 days (47.41 yr)      first obs. used      1973-09-19      last obs. used      2021-02-16      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .50834      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 03:51:04   Additional Information  Earth MOID = .917141 au   Jupiter MOID = 2.55296 au   T_jup = 3.471  [ 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 14.87   n/a E2021B10   21644 Vinay           Discovered 1999 July 13 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro. Vinay Tripuraneni (b. 1988) was awarded second place in the 2006 Intel International Science and Engineering Fair for his biochemistry project. He attends the Clovis West High School, Fresno, California, 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: 20060711/MPCPages.arc Last Updated: 2006-07-17 Alternate Designations  1999 NA50 = 4110 T-2  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-16 10:16 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin