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277493 (2005 WH94)
Classification: Main-belt Asteroid          SPK-ID: 2277493
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2187499527305014 5.1962e-08  
a 2.356654474738113 1.6633e-08 au
q 1.841136419787026 1.1759e-07 au
i 3.492854268412738 7.5116e-06 deg
node 240.8232021721107 0.00010219 deg
peri 70.7430881628965 0.00010547 deg
M 103.4244499022328 1.9858e-05 deg
tp 2458620.867824062184
(2019-May-17.36782406)
7.4429e-05 TDB
period 1321.424319556989
3.62
1.399e-05
3.83e-08
d
yr
n .272433309022715 2.8842e-09 deg/d
Q 2.8721725296892 2.0272e-08 au
  Orbit Determination Parameters
   # obs. used (total)      184  
   data-arc span      6645 days (18.19 yr)  
   first obs. used      2001-09-20  
   last obs. used      2019-11-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52253  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 14:12:10  

Additional Information
 Earth MOID = .830511 au 
 Jupiter MOID = 2.41319 au 
 T_jup = 3.519 
[ 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 17.6   n/a MPO440345  

277493 (2005 WH94)          Discovered 2005-Nov-26 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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