+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   243616 (1999 FQ76) Classification: Main-belt Asteroid          SPK-ID: 2243616 [ 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 12 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .03917828562096473 9.619e-08   a 3.06003569803562 3.3806e-08 au q 2.940148745447632 3.038e-07 au i 3.050301212301816 7.538e-06 deg node 54.43494653642361 0.00015032 deg peri 118.0997038966067 0.00017615 deg M 359.3371352652575 9.004e-05 deg tp 2459004.100066972871 (2020-Jun-03.60006697) 0.00048903 TDB period 1955.186393702581 5.35 3.24e-05 8.871e-08 d yr n .1841256675882752 3.0512e-09 deg/d Q 3.179922650623607 3.513e-08 au   Orbit Determination Parameters    # obs. used (total)      153      data-arc span      7623 days (20.87 yr)      first obs. used      1999-03-20      last obs. used      2020-02-01      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .65578      source      ORB      producer      Otto Matic      solution date      2020-Feb-25 09:23:00   Additional Information  Earth MOID = 1.94611 au   Jupiter MOID = 1.78121 au   T_jup = 3.231  [ 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 16.4   n/a MPO470597   diameter diameter 4.166 km 0.686 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.031   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   243616 (1999 FQ76)          Discovered 1999-Mar-20 by Sloan Digital Sky Survey at Apache Point Reference: 20100726/Numbers.arc Last Updated: 2010-07-28 [ show close-approach data ] Alternate Designations  1999 FQ76 = 2007 TP238  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Aug-12 19:12 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin