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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06466235181917311 6.2777e-08  
a 3.204922421444664 3.5352e-08 au
q 2.997684600276053 2.1339e-07 au
i 9.665355408559625 6.789e-06 deg
node .9895382074638898 3.0294e-05 deg
peri 126.2964888662671 6.0632e-05 deg
M 334.0193067202802 4.9194e-05 deg
tp 2459351.742185356516
(2021-May-17.24218536)
0.00028612 TDB
period 2095.67874660398
5.74
3.4675e-05
9.493e-08
d
yr
n .1717820541833404 2.8423e-09 deg/d
Q 3.412160242613275 3.7638e-08 au
  Orbit Determination Parameters
   # obs. used (total)      291  
   data-arc span      8003 days (21.91 yr)  
   first obs. used      1999-04-12  
   last obs. used      2021-03-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49296  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 01:51:19  

Additional Information
 Earth MOID = 2.02397 au 
 Jupiter MOID = 1.61939 au 
 T_jup = 3.168 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457498.5 (2016-Apr-20.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06427692642340965 6.462e-08  
q 3.001787798028816 2.2105e-07 au
tp 2457271.825379402231
(2015-Sep-06.32537940)
0.00028428 TDB
node 1.028080333857436 3.025e-05 deg
peri 128.9036865291729 5.9297e-05 deg
i 9.671705543119584 6.7926e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      291  
   data-arc span      8003 days (21.91 yr)  
   first obs. used      1999-04-12  
   last obs. used      2021-03-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49296  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 01:51:19  

Additional Information
 Jupiter MOID = 1.61939 au 
 T_jup = 3.168 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.175771685714745E-15 -1.413448188894207E-14 8.615423504938544E-12 -1.749885673176349E-14 1.628637958695588E-12 -5.87669631431187E-15
q -1.413448188894207E-14 4.886465432420758E-14 -2.999295799228641E-11 5.908085413324298E-14 -5.640149881403352E-12 2.053488481702148E-14
tp 8.615423504938544E-12 -2.999295799228641E-11 8.081708794108898E-8 -8.981983939075438E-11 1.452040670988505E-8 7.696450290757415E-13
node -1.749885673176349E-14 5.908085413324298E-14 -8.981983939075438E-11 9.150355525764601E-10 -9.180144670404914E-10 -3.276580285351207E-11
peri 1.628637958695588E-12 -5.640149881403352E-12 1.452040670988505E-8 -9.180144670404914E-10 3.516142497251116E-9 3.2362700474958E-11
i -5.87669631431187E-15 2.053488481702148E-14 7.696450290757415E-13 -3.276580285351207E-11 3.2362700474958E-11 4.613895170599672E-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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