+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   160340 (2003 SB100) Classification: Main-belt Asteroid          SPK-ID: 2160340 [ 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 17 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2836174587487799 6.975e-08   a 2.688095578908177 2.2095e-08 au q 1.92570474194441 1.9419e-07 au i 15.515258440361 5.622e-06 deg node 274.3516975034999 3.0488e-05 deg peri 49.20991387548047 3.2292e-05 deg M 339.3726698331542 1.7162e-05 deg tp 2459292.737177752171 (2021-Mar-19.23717775) 7.7575e-05 TDB period 1609.776142728946 4.41 1.9848e-05 5.434e-08 d yr n .2236335788836552 2.7573e-09 deg/d Q 3.450486415871945 2.8362e-08 au   Orbit Determination Parameters    # obs. used (total)      329      data-arc span      7532 days (20.62 yr)      first obs. used      1999-11-01      last obs. used      2020-06-15      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .56475      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 20:00:57   Additional Information  Earth MOID = .946448 au   Jupiter MOID = 1.99197 au   T_jup = 3.264  [ 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 15.20   n/a E2021B55   diameter diameter 4.660 km 0.554 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.074   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   160340 (2003 SB100)          Discovered 2003-Sep-20 by NEAT at Palomar Reference: 20070730/Numbers.arc Last Updated: 2007-08-06 [ show close-approach data ] Alternate Designations  2003 SB100 = 2003 MR12  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-17 12:39 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin