+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   523290 (2017 BT48) Classification: Main-belt Asteroid          SPK-ID: 2523290 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 8 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1414748320207629 6.8382e-08   a 2.687524429204888 4.6034e-08 au q 2.30730736203143 1.958e-07 au i 8.170929925621529 1.0252e-05 deg node 335.6142362823247 5.6234e-05 deg peri 74.78441635147556 8.6811e-05 deg M 335.3138195627559 6.1705e-05 deg tp 2459110.851554677038 (2020-Sep-18.35155468) 0.00027751 TDB period 1609.26311726208 4.41 4.1347e-05 1.132e-07 d yr n .2237048722103853 5.7477e-09 deg/d Q 3.067741496378346 5.2547e-08 au   Orbit Determination Parameters    # obs. used (total)      70      data-arc span      5981 days (16.38 yr)      first obs. used      2004-03-17      last obs. used      2020-08-01      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .59171      source      ORB      producer      Otto Matic      solution date      2020-Aug-26 03:20:23   Additional Information  Earth MOID = 1.33343 au   Jupiter MOID = 2.34723 au   T_jup = 3.345  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 17.2   n/a MPO448197   523290 (2017 BT48)          Discovered 2011-Nov-03 by Mt. Lemmon Survey at Mount Lemmon Reference: Last Updated: 2018-05-31 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jan-20 21:19 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin