+ 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 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 32 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1908839222366398 3.3866e-08   a 2.424108432190384 9.142e-09 au q 1.961385106726972 8.0994e-08 au i 3.506849102825959 3.5744e-06 deg node 41.97641698298511 5.239e-05 deg peri 280.63644114 5.3416e-05 deg M 269.8322309275165 1.2666e-05 deg tp 2459545.783093485859 (2021-Nov-27.28309349) 4.9443e-05 TDB period 1378.562594301144 3.77 7.7984e-06 2.135e-08 d yr n .2611415698410853 1.4773e-09 deg/d Q 2.886831757653797 1.0887e-08 au   Orbit Determination Parameters    # obs. used (total)      2097      data-arc span      9566 days (26.19 yr)      first obs. used      1994-04-02      last obs. used      2020-06-10      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .51843      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 01:10:51   Additional Information  Earth MOID = .950811 au   Jupiter MOID = 2.44045 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 14.25   n/a E2021B10   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 ] 2021-Apr-16 12:28 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin