+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   245378 (2005 GD91) Classification: Outer Main-belt Asteroid          SPK-ID: 2245378 [ 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 21 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .0646623490925107 6.2813e-08   a 3.204922422982893 3.543e-08 au q 2.997684610453558 2.1344e-07 au i 9.665355219807374 6.8229e-06 deg node .9895382074180709 3.0298e-05 deg peri 126.2964851577451 6.074e-05 deg M 334.019310591352 4.9353e-05 deg tp 2459351.742162930615 (2021-May-17.24216293) 0.00028706 TDB period 2095.678748112738 5.74 3.4751e-05 9.514e-08 d yr n .1717820540596681 2.8485e-09 deg/d Q 3.412160235512228 3.7721e-08 au   Orbit Determination Parameters    # obs. used (total)      287      data-arc span      7951 days (21.77 yr)      first obs. used      1999-04-12      last obs. used      2021-01-17      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .49428      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 13:40:39   Additional Information  Earth MOID = 2.02397 au   Jupiter MOID = 1.61939 au   T_jup = 3.168  [ hide covariance matrix ] Orbital Elements at Epoch 2457487.5 (2016-Apr-09.0) TDB Reference: JPL 21 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .06425215919618751 6.4698e-08   q 3.001880687758272 2.2118e-07 au tp 2457271.995363956344 (2015-Sep-06.49536396) 0.000285 TDB node 1.028127685104534 3.0254e-05 deg peri 128.9380755404723 5.9398e-05 deg i 9.671651257277281 6.8265e-06 deg   Orbit Determination Parameters    # obs. used (total)      287      data-arc span      7951 days (21.77 yr)      first obs. used      1999-04-12      last obs. used      2021-01-17      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .49428      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 13:40:39   Additional Information  Jupiter MOID = 1.61939 au   T_jup = 3.168  Orbit Covariance (6×6)   e q tp node peri i e 4.185776285712587E-15 -1.415868693699419E-14 8.664786936975025E-12 -1.762853958959676E-14 1.637206772868478E-12 -5.914491184162947E-15 q -1.415868693699419E-14 4.892050388660274E-14 -3.010727921852576E-11 5.941796592217911E-14 -5.659854853663914E-12 2.065551846650779E-14 tp 8.664786936975025E-12 -3.010727921852576E-11 8.122507087762632E-8 -9.066664683787339E-11 1.458945747358703E-8 7.846057594523483E-13 node -1.762853958959676E-14 5.941796592217911E-14 -9.066664683787339E-11 9.153332649160745E-10 -9.184519147828479E-10 -3.243723696534907E-11 peri 1.637206772868478E-12 -5.659854853663914E-12 1.458945747358703E-8 -9.184519147828479E-10 3.52811892913985E-9 3.204113980063186E-11 i -5.914491184162947E-15 2.065551846650779E-14 7.846057594523483E-13 -3.243723696534907E-11 3.204113980063186E-11 4.660057291879452E-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 15.3   n/a MPO454806   245378 (2005 GD91)          Discovered 2005-Apr-06 by Spacewatch at Kitt Peak Reference: 20100726/Numbers.arc Last Updated: 2010-07-28 [ show close-approach data ] Alternate Designations  2005 GD91 = 1999 GA12  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Mar-02 00:12 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin