+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   8416 Okada (1996 VB8) Classification: Main-belt Asteroid          SPK-ID: 2008416 [ 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 40 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1956825965928203 1.33e-08   a 2.15267467699187 5.0111e-09 au q 1.731433706578491 2.8012e-08 au i 3.316370750439294 9.4514e-07 deg node 169.9941800328117 1.6102e-05 deg peri 130.5413351256555 2.2269e-05 deg M 305.7564041966529 8.515e-06 deg tp 2459374.324904833829 (2021-Jun-08.82490483) 2.7622e-05 TDB period 1153.628641564301 3.16 4.0282e-06 1.103e-08 d yr n .3120588264104176 1.0896e-09 deg/d Q 2.57391564740525 5.9917e-09 au   Orbit Determination Parameters    # obs. used (total)      2574      data-arc span      14767 days (40.43 yr)      first obs. used      1980-09-06      last obs. used      2021-02-10      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .47805      source      ORB      producer      Otto Matic      solution date      2021-Mar-16 20:39:11   Additional Information  Earth MOID = .716296 au   Jupiter MOID = 2.6481 au   T_jup = 3.677  [ 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 13.93   n/a E2021B10   diameter diameter 4.198 km 0.145 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.252   0.021 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   8416 Okada           Discovered 1996 Nov. 3 by S. Ueda and H. Kaneda at Kushiro. Yoshiyuki Okada (b. 1947), a member of Shirakawa Observatory in Japan and Chiro Observatory in Australia, is a talented amateur who played an important role in developing large portable telescopes, including the 0.84-m Chiro Telescope. These telescopes went on nationwide tours to show the beauty of the starry sky. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20010109/MPCPages.arc Last Updated: 2009-05-11 [ show close-approach data ] Alternate Designations  1996 VB8 = 1980 RP8 = 1980 TG10 = 1986 LA1 = 1988 AO  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-12 15:08 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin