+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   21737 Stephenshulz (1999 RV151) Classification: Main-belt Asteroid          SPK-ID: 2021737 [ 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 31 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1540930826831554 2.6251e-08   a 2.419036203451962 8.3007e-09 au q 2.046279457739893 6.3961e-08 au i 1.450012320067554 2.9563e-06 deg node 78.64126943395813 0.00016812 deg peri 341.4534371639916 0.00016873 deg M 172.1183144434971 1.5289e-05 deg tp 2458543.467938392910 (2019-Feb-28.96793839) 5.6976e-05 TDB period 1374.238081190371 3.76 7.0734e-06 1.937e-08 d yr n .2619633416708744 1.3484e-09 deg/d Q 2.791792949164032 9.5798e-09 au   Orbit Determination Parameters    # obs. used (total)      1763      data-arc span      13996 days (38.32 yr)      first obs. used      1982-01-30      last obs. used      2020-05-26      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .50104      source      ORB      producer      Otto Matic      solution date      2020-Nov-13 01:55:15   Additional Information  Earth MOID = 1.05826 au   Jupiter MOID = 2.52232 au   T_jup = 3.498  [ 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 14.74   n/a E2021B10   diameter diameter 6.407 km 0.150 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.068   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   21737 Stephenshulz           Discovered 1999 Sept. 9 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro. Stephen Schulz (b. 1985) was awarded first place and Best in Category in the 2005 Intel International Science and Engineering Fair for his chemistry project. He also received the Achievement Award, the Young Scientist Award, and the Seaborg SIYSS Award. He attends the Gesamtschule Buer-Mitte, Gelsenkirchen, Germany. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20050822/MPCPages.arc Last Updated: 2005-08-26 [ show close-approach data ] Alternate Designations  1999 RV151 = 1982 BY12 = 1998 HC103  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-10 12:47 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin