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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.arcLast 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 ]
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