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277164 (2005 NQ54)
Classification: Main-belt Asteroid          SPK-ID: 2277164
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1128661635968253 4.3571e-08  
a 2.245253213779165 1.1532e-08 au
q 1.991840097236468 9.5876e-08 au
i 7.622843472980264 3.5767e-06 deg
node 141.9405392612736 3.7485e-05 deg
peri 252.0442536878359 4.2244e-05 deg
M 74.13450353442228 1.8894e-05 deg
tp 2458747.445363068126
(2019-Sep-20.94536307)
6.4817e-05 TDB
period 1228.843048138511
3.36
9.4673e-06
2.592e-08
d
yr
n .2929584868835274 2.257e-09 deg/d
Q 2.498666330321862 1.2834e-08 au
  Orbit Determination Parameters
   # obs. used (total)      298  
   data-arc span      6800 days (18.62 yr)  
   first obs. used      2001-06-15  
   last obs. used      2020-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52133  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 14:10:18  

Additional Information
 Earth MOID = 1.01242 au 
 Jupiter MOID = 2.8876 au 
 T_jup = 3.611 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.3   n/a MPO440343  

277164 (2005 NQ54)          Discovered 2005-Jul-10 by Spacewatch at Kitt Peak
Reference: 20110517/Numbers.arcLast Updated: 2011-05-20
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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