+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   13754 (1998 SB63) Classification: Main-belt Asteroid          SPK-ID: 2013754 [ 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 37 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .04883122156823855 1.7626e-08   a 2.653223516951086 1.1837e-08 au q 2.523663371524786 4.911e-08 au i 22.37208584378148 1.206e-06 deg node 22.85391937942679 2.6716e-06 deg peri 60.28084586244258 2.0632e-05 deg M 347.3367849619712 2.1703e-05 deg tp 2459256.026546731958 (2021-Feb-10.52654673) 9.5121e-05 TDB period 1578.553058087902 4.32 1.0563e-05 2.892e-08 d yr n .2280569526348815 1.5261e-09 deg/d Q 2.782783662377385 1.2415e-08 au   Orbit Determination Parameters    # obs. used (total)      2355      data-arc span      14354 days (39.30 yr)      first obs. used      1981-11-25      last obs. used      2021-03-14      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .37864      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 00:07:09   Additional Information  Earth MOID = 1.57307 au   Jupiter MOID = 2.3543 au   T_jup = 3.280  [ 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 12.35   n/a E2021B10   diameter diameter 10.238 km 0.152 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.169   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   13754 (1998 SB63)          Discovered 1998-Sep-25 by Beijing Schmidt CCD Asteroid Program at Xinglong Reference: 20000222/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  1998 SB63 = 1981 WZ3 = 1992 GA2 = 1992 GA6  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-23 09:50 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin