+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   10516 Sakurajima (1989 VQ) Classification: Main-belt Asteroid          SPK-ID: 2010516 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 33 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .220269258616258 3.384e-08   a 2.419325873777917 6.5279e-09 au q 1.886422757209725 8.1755e-08 au i 2.661551677560219 3.0569e-06 deg node 64.92736004792557 8.1571e-05 deg peri 291.38490879 8.1881e-05 deg M 70.69902649701531 6.3501e-06 deg tp 2458730.570149003063 (2019-Sep-04.07014900) 2.4206e-05 TDB period 1374.484928204772 3.76 5.563e-06 1.523e-08 d yr n .2619162950518487 1.0601e-09 deg/d Q 2.95222899034611 7.9658e-09 au   Orbit Determination Parameters    # obs. used (total)      2262      data-arc span      16784 days (45.95 yr)      first obs. used      1974-11-12      last obs. used      2020-10-25      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .46593      source      ORB      producer      Otto Matic      solution date      2020-Nov-13 03:05:50   Additional Information  Earth MOID = .884175 au   Jupiter MOID = 2.49467 au   T_jup = 3.480  [ 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 13.8   n/a MPO344387   diameter diameter 3.990 km 0.771 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.306   0.083 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   10516 Sakurajima           Discovered 1989 Nov. 1 by M. Mukai and M. Takeishi at JCPM Kagoshima Station. Mt. Sakurajima is a volcano located on the southern tip of Kyushu, Kagoshima prefecture, on the southwestern-most island of Japan. It is 1117 meters high and is extremely active at present. It is said that Mt. Sakurajima changes color seven times a day. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20030614/MPCPages.arc Last Updated: 2005-04-26 Alternate Designations  1989 VQ = 1974 VE  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Nov-29 00:23 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin