+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   120483 (1993 BW8) Classification: Main-belt Asteroid          SPK-ID: 2120483 [ 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 17 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1464772167655422 4.9433e-08   a 2.651919337214371 1.6598e-08 au q 2.263473573612489 1.2948e-07 au i 3.56309347878635 4.8493e-06 deg node 99.80869827568384 0.00010273 deg peri 136.1553919551485 0.00010486 deg M 30.29492139561405 2.2143e-05 deg tp 2458867.758652724904 (2020-Jan-19.25865272) 9.6633e-05 TDB period 1577.389305454767 4.32 1.4809e-05 4.054e-08 d yr n .2282252065200928 2.1427e-09 deg/d Q 3.040365100816254 1.9029e-08 au   Orbit Determination Parameters    # obs. used (total)      408      data-arc span      10471 days (28.67 yr)      first obs. used      1991-11-08      last obs. used      2020-07-09      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .61751      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 17:56:54   Additional Information  Earth MOID = 1.25337 au   Jupiter MOID = 1.96237 au   T_jup = 3.372  [ 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 16.05   n/a E2021B55   diameter diameter 3.910 km 1.255 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.050   0.027 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   120483 (1993 BW8)          Discovered 1993-Jan-21 by Spacewatch at Kitt Peak Reference: 20060314/Numbers.arc Last Updated: 2006-03-23 [ show close-approach data ] Alternate Designations  1993 BW8 = 1998 HR96  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Mar-01 16:03 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin