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277508 (2005 WN172)
Classification: Main-belt Asteroid          SPK-ID: 2277508
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1926547456505508 7.5358e-08  
a 2.318068890039632 1.9431e-08 au
q 1.871481917628592 1.7393e-07 au
i 2.256872023023997 8.3238e-06 deg
node 204.8048628073313 0.00015571 deg
peri 68.92478674723853 0.00015751 deg
M 179.9678115366319 2.4331e-05 deg
tp 2458356.063293602831
(2018-Aug-25.56329360)
8.3431e-05 TDB
period 1289.103936543444
3.53
1.6209e-05
4.438e-08
d
yr
n .2792637504197613 3.5114e-09 deg/d
Q 2.764655862450672 2.3175e-08 au
  Orbit Determination Parameters
   # obs. used (total)      193  
   data-arc span      6697 days (18.34 yr)  
   first obs. used      2001-09-20  
   last obs. used      2020-01-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64106  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 14:12:25  

Additional Information
 Earth MOID = .856661 au 
 Jupiter MOID = 2.34788 au 
 T_jup = 3.554 
[ 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 17.5   n/a MPO348752  

277508 (2005 WN172)          Discovered 2005-Nov-30 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20110517/Numbers.arcLast Updated: 2011-05-20
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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