+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   100716 (1998 BF23) Classification: Main-belt Asteroid          SPK-ID: 2100716 [ 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 27 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2654646985126985 4.0207e-08   a 2.727910324097945 1.0107e-08 au q 2.003746432341606 1.1241e-07 au i 6.194516328020359 4.67e-06 deg node 331.1079624045209 2.933e-05 deg peri 145.9478155754062 3.124e-05 deg M 41.37771680198313 7.8119e-06 deg tp 2459011.349461015372 (2020-Jun-10.84946102) 3.558e-05 TDB period 1645.673065054247 4.51 9.1457e-06 2.504e-08 d yr n .218755479228879 1.2157e-09 deg/d Q 3.452074215854283 1.279e-08 au   Orbit Determination Parameters    # obs. used (total)      1167      data-arc span      8393 days (22.98 yr)      first obs. used      1998-01-25      last obs. used      2021-01-17      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .52642      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 19:32:58   Additional Information  Earth MOID = 1.02319 au   Jupiter MOID = 1.66314 au   T_jup = 3.295  [ 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 15.39   n/a E2021B55   diameter diameter 2.753 km 0.474 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   geometric albedo albedo 0.177   0.066 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   100716 (1998 BF23)          Discovered 1998-Jan-25 by Spacewatch at Kitt Peak Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 [ show close-approach data ] Alternate Designations  1998 BF23 = 2001 TL112  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Mar-03 02:43 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin