+ 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 2459000.5 (2020-May-31.0) TDB Reference: JPL 18 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .06457011383589177 6.6904e-08   a 3.204157570587763 4.1296e-08 au q 2.997264751506777 2.202e-07 au i 9.66566918409764 8.8685e-06 deg node .9970226446350731 3.0378e-05 deg peri 126.4898365729981 6.9111e-05 deg M 299.4657408033411 6.1152e-05 deg tp 2459352.763751506006 (2021-May-18.26375151) 0.00035747 TDB period 2094.928594569492 5.74 4.05e-05 1.109e-07 d yr n .1718435659015767 3.3222e-09 deg/d Q 3.411050389668749 4.3963e-08 au   Orbit Determination Parameters    # obs. used (total)      210      data-arc span      7587 days (20.77 yr)      first obs. used      1999-04-12      last obs. used      2020-01-19      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .53566      source      ORB      producer      Otto Matic      solution date      2020-Feb-25 09:42:19   Additional Information  Earth MOID = 2.02354 au   Jupiter MOID = 1.62076 au   T_jup = 3.168  [ hide covariance matrix ] Orbital Elements at Epoch 2457201.5 (2015-Jun-28.0) TDB Reference: JPL 18 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .06311133908153124 6.9794e-08   q 3.00249314653826 2.2991e-07 au tp 2457274.315256139779 (2015-Sep-08.81525614) 0.00034425 TDB node 1.043655875424007 3.0371e-05 deg peri 129.3864157165646 6.8048e-05 deg i 9.668476234251987 8.8689e-06 deg   Orbit Determination Parameters    # obs. used (total)      210      data-arc span      7587 days (20.77 yr)      first obs. used      1999-04-12      last obs. used      2020-01-19      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .53566      source      ORB      producer      Otto Matic      solution date      2020-Feb-25 09:42:19   Additional Information  Jupiter MOID = 1.62076 au   T_jup = 3.168  Orbit Covariance (6×6)   e q tp node peri i e 4.871168967402479E-15 -1.58182387313212E-14 1.347646175442968E-11 -2.788932316611007E-14 2.463335520623539E-12 6.03949436061899E-16 q -1.58182387313212E-14 5.285735410096097E-14 -4.179471034545418E-11 8.758299968171895E-14 -7.669437866729017E-12 1.251181936696114E-16 tp 1.347646175442968E-11 -4.179471034545418E-11 1.185052449844795E-7 -1.660316065643396E-10 2.097897417828603E-8 1.284846021184012E-11 node -2.788932316611007E-14 8.758299968171895E-14 -1.660316065643396E-10 9.224268261532709E-10 -9.382653248007077E-10 -4.270574646979415E-11 peri 2.463335520623539E-12 -7.669437866729017E-12 2.097897417828603E-8 -9.382653248007077E-10 4.63059033068554E-9 4.428462614859355E-11 i 6.03949436061899E-16 1.251181936696114E-16 1.284846021184012E-11 -4.270574646979415E-11 4.428462614859355E-11 7.865807212063821E-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 ] 2020-Oct-26 10:15 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin