+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   15842 (1995 SX2) Classification: Main-belt Asteroid          SPK-ID: 2015842 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 30 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1907486737651362 3.3917e-08   a 2.424497943476714 9.1921e-09 au q 1.96202817621223 8.1112e-08 au i 3.506559560565552 3.5893e-06 deg node 41.97985051637967 5.2583e-05 deg peri 280.5940953908858 5.3611e-05 deg M 217.645904875053 1.2542e-05 deg tp 2459545.753699984065 (2021-Nov-27.25369998) 4.9498e-05 TDB period 1378.894873533316 3.78 7.8418e-06 2.147e-08 d yr n .2610786412437133 1.4848e-09 deg/d Q 2.886967710741197 1.0946e-08 au   Orbit Determination Parameters    # obs. used (total)      2085      data-arc span      9523 days (26.07 yr)      first obs. used      1994-04-02      last obs. used      2020-04-28      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .51951      source      ORB      producer      Otto Matic      solution date      2020-May-20 04:16:00   Additional Information  Earth MOID = .953399 au   Jupiter MOID = 2.44026 au   T_jup = 3.484  [ 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 14.2   n/a MPO319282   diameter diameter 8.212 km 0.086 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.049   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   15842 (1995 SX2)          Discovered 1995-Sep-20 by Ueda, S., Kaneda, H. at Kushiro Reference: 20000726/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  1995 SX2 = 1998 DG14  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Aug-15 14:35 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin