+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   243821 (2000 SB344) Classification: Main-belt Asteroid          SPK-ID: 2243821 [ 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 15 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1348204531245699 5.3244e-08   a 3.139640370474973 3.9463e-08 au q 2.716352633079345 1.7364e-07 au i 17.67552079603903 7.0259e-06 deg node 3.869333822031509 1.977e-05 deg peri 295.6016087939946 3.2519e-05 deg M 248.1853962139635 2.8025e-05 deg tp 2459631.623443208162 (2022-Feb-21.12344321) 0.00016338 TDB period 2031.974642504718 5.56 3.8311e-05 1.049e-07 d yr n .1771675652193402 3.3403e-09 deg/d Q 3.562928107870602 4.4783e-08 au   Orbit Determination Parameters    # obs. used (total)      268      data-arc span      9279 days (25.40 yr)      first obs. used      1994-09-06      last obs. used      2020-02-01      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .58766      source      ORB      producer      Otto Matic      solution date      2020-Feb-25 09:25:38   Additional Information  Earth MOID = 1.75624 au   Jupiter MOID = 1.97346 au   T_jup = 3.124  [ 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 15.2   n/a MPO433597   diameter diameter 6.103 km 0.388 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.043   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   243821 (2000 SB344)          Discovered 2000-Sep-22 by Spacewatch at Kitt Peak Reference: 20100726/Numbers.arc Last Updated: 2010-07-28 [ show close-approach data ] Alternate Designations  2000 SB344 = 2006 UH204 = 2009 FW40  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Jul-13 05:25 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin