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266560 (2008 GN54)
Classification: Main-belt Asteroid          SPK-ID: 2266560
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 .157600191753762 5.7328e-08  
a 2.324266998753448 2.5692e-08 au
q 1.957962074062964 1.3453e-07 au
i 3.587789703486458 8.3429e-06 deg
node 54.47805282428904 0.0001308 deg
peri 202.9183639767899 0.00013608 deg
M 109.4999188640978 4.348e-05 deg
tp 2458606.824174053104
(2019-May-03.32417405)
0.00015254 TDB
period 1294.277647061799
3.54
2.146e-05
5.875e-08
d
yr
n .2781474290444967 4.6118e-09 deg/d
Q 2.690571923443932 2.9741e-08 au
  Orbit Determination Parameters
   # obs. used (total)      192  
   data-arc span      7093 days (19.42 yr)  
   first obs. used      2001-05-25  
   last obs. used      2020-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63977  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 22:24:49  

Additional Information
 Earth MOID = .943579 au 
 Jupiter MOID = 2.36007 au 
 T_jup = 3.556 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457208.5 (2015-Jul-05.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1570871695654044 5.7265e-08  
q 1.959422777750632 1.3432e-07 au
tp 2457312.529420103828
(2015-Oct-17.02942010)
0.00014235 TDB
node 54.49192658152018 0.00013074 deg
peri 203.0396455233708 0.00013608 deg
i 3.588557967928861 8.3455e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      192  
   data-arc span      7093 days (19.42 yr)  
   first obs. used      2001-05-25  
   last obs. used      2020-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63977  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 22:24:49  

Additional Information
 Jupiter MOID = 2.36007 au 
 T_jup = 3.556 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.279238565927859E-15 -7.590863043707055E-15 -4.205279954674546E-12 2.223945541987887E-15 -1.12754536823233E-12 -1.623378735599986E-15
q -7.590863043707055E-15 1.804131753406325E-14 1.117044964094858E-11 -8.495094819104624E-15 2.981127403988804E-12 5.054016301013291E-15
tp -4.205279954674546E-12 1.117044964094858E-11 2.026368153592839E-8 8.843168946729684E-12 5.456312706980878E-9 1.026815250970237E-11
node 2.223945541987887E-15 -8.495094819104624E-15 8.843168946729684E-12 1.709367877895501E-8 -1.705779042077505E-8 -6.930528936218589E-10
peri -1.12754536823233E-12 2.981127403988804E-12 5.456312706980878E-9 -1.705779042077505E-8 1.851838397753879E-8 6.945434448076024E-10
i -1.623378735599986E-15 5.054016301013291E-15 1.026815250970237E-11 -6.930528936218589E-10 6.945434448076024E-10 6.964783330108044E-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 17.5   n/a MPO433730  

266560 (2008 GN54)          Discovered 2008-Apr-05 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

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