+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   215761 (2004 FF90) Classification: Main-belt Asteroid          SPK-ID: 2215761 [ 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 14 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .08156871209501637 4.3834e-08   a 2.687345993778691 2.6496e-08 au q 2.468142642112461 1.27e-07 au i 6.500555683972748 5.0175e-06 deg node 116.5548280336975 5.4568e-05 deg peri 324.5735043833926 7.1427e-05 deg M 332.8759218894651 4.6443e-05 deg tp 2459121.737309560583 (2020-Sep-29.23730956) 0.00020833 TDB period 1609.102851862758 4.41 2.3797e-05 6.515e-08 d yr n .2237271530426103 3.3087e-09 deg/d Q 2.906549345444921 2.8657e-08 au   Orbit Determination Parameters    # obs. used (total)      258      data-arc span      5787 days (15.84 yr)      first obs. used      2004-03-20      last obs. used      2020-01-23      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .54516      source      ORB      producer      Otto Matic      solution date      2020-Feb-25 03:26:38   Additional Information  Earth MOID = 1.4875 au   Jupiter MOID = 2.25906 au   T_jup = 3.360  [ hide covariance matrix ] Orbital Elements at Epoch 2457541.5 (2016-Jun-02.0) TDB Reference: JPL 14 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .07966037943871182 4.3589e-08   q 2.473439507966043 1.2632e-07 au tp 2457507.225572109441 (2016-Apr-28.72557211) 0.00020604 TDB node 116.6788160061253 5.4633e-05 deg peri 323.4439028666793 7.2406e-05 deg i 6.496584446005429 5.0169e-06 deg   Orbit Determination Parameters    # obs. used (total)      258      data-arc span      5787 days (15.84 yr)      first obs. used      2004-03-20      last obs. used      2020-01-23      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .54516      source      ORB      producer      Otto Matic      solution date      2020-Feb-25 03:26:38   Additional Information  Jupiter MOID = 2.25906 au   T_jup = 3.360  Orbit Covariance (6×6)   e q tp node peri i e 1.900009609736905E-15 -5.410114172894308E-15 -9.095027329115165E-13 -1.39247567934121E-14 -1.340499893507635E-13 -3.353869095475545E-15 q -5.410114172894308E-15 1.595583835354966E-14 4.067765443240414E-12 4.383231363022661E-14 7.158514960210882E-13 1.142292783819707E-14 tp -9.095027329115165E-13 4.067765443240414E-12 4.245321855251411E-8 3.047599720610087E-11 9.836722241685193E-9 2.034725820361912E-11 node -1.39247567934121E-14 4.383231363022661E-14 3.047599720610087E-11 2.984770163491641E-9 -2.958708133334579E-9 8.287336329226679E-11 peri -1.340499893507635E-13 7.158514960210882E-13 9.836722241685193E-9 -2.958708133334579E-9 5.242673959886685E-9 -7.77283063970834E-11 i -3.353869095475545E-15 1.142292783819707E-14 2.034725820361912E-11 8.287336329226679E-11 -7.77283063970834E-11 2.516888192704044E-11 [ 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 16.2   n/a MPO454550   215761 (2004 FF90)          Discovered 2004-Mar-20 by LINEAR at Socorro Reference: 20090607/Numbers.arc Last Updated: 2009-06-08 [ show close-approach data ] Alternate Designations  2004 FF90 = 2008 AU110  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Aug-08 07:15 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin