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308260 (2005 GQ90)
Classification: Main-belt Asteroid          SPK-ID: 2308260
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0993487733270286 5.7294e-08  
a 2.64545939010849 2.922e-08 au
q 2.382636244814742 1.3944e-07 au
i 2.912337336774122 5.6603e-06 deg
node 258.9212825406435 0.00015352 deg
peri 11.02014846803658 0.00015958 deg
M 127.3699390589634 4.1316e-05 deg
tp 2458444.449141177192
(2018-Nov-21.94914118)
0.00018142 TDB
period 1571.629150921886
4.30
2.6039e-05
7.129e-08
d
yr
n .2290616713165642 3.7951e-09 deg/d
Q 2.908282535402237 3.2123e-08 au
  Orbit Determination Parameters
   # obs. used (total)      142  
   data-arc span      5356 days (14.66 yr)  
   first obs. used      2005-03-17  
   last obs. used      2019-11-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61652  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 18:56:36  

Additional Information
 Earth MOID = 1.36658 au 
 Jupiter MOID = 2.16481 au 
 T_jup = 3.384 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457506.5 (2016-Apr-28.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09996365714586486 5.6781e-08  
q 2.380850246038152 1.3815e-07 au
tp 2456875.471667145436
(2014-Aug-05.97166715)
0.00018707 TDB
node 258.9617075729624 0.00015375 deg
peri 11.58567934444016 0.00015981 deg
i 2.909809731546323 5.6583e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      142  
   data-arc span      5356 days (14.66 yr)  
   first obs. used      2005-03-17  
   last obs. used      2019-11-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61652  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 18:56:36  

Additional Information
 Jupiter MOID = 2.16481 au 
 T_jup = 3.384 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.224109461219296E-15 -7.73978707448835E-15 -3.06281405641593E-12 -3.775683116225182E-14 -6.731132225916728E-13 6.789293064977275E-16
q -7.73978707448835E-15 1.908428491215739E-14 6.65753420600657E-12 9.620113939680499E-14 1.492384281063026E-12 -1.229911130025621E-15
tp -3.06281405641593E-12 6.65753420600657E-12 3.499346343538403E-8 1.446815549020445E-10 8.234854588978972E-9 -9.706258320797581E-12
node -3.775683116225182E-14 9.620113939680499E-14 1.446815549020445E-10 2.363943302228317E-8 -2.357287032799254E-8 -2.005547693535296E-10
peri -6.731132225916728E-13 1.492384281063026E-12 8.234854588978972E-9 -2.357287032799254E-8 2.553829911889316E-8 1.979874047081602E-10
i 6.789293064977275E-16 -1.229911130025621E-15 -9.706258320797581E-12 -2.005547693535296E-10 1.979874047081602E-10 3.201673777174468E-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 17.0   n/a MPO450234  

308260 (2005 GQ90)          Discovered 2005-Apr-06 by Spacewatch at Kitt Peak
Reference: 20111210/Numbers.arcLast Updated: 2011-12-12

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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