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277265 (2005 SW31)
Classification: Main-belt Asteroid          SPK-ID: 2277265
[ 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 .0707885151217615 5.503e-08  
a 2.396947058160974 1.6962e-08 au
q 2.227270735088284 1.3287e-07 au
i 3.45218410949856 6.0128e-06 deg
node 72.43260697127177 0.00010054 deg
peri 343.2372782447684 0.00010916 deg
M 309.2305670787788 4.4873e-05 deg
tp 2459191.655105212765
(2020-Dec-08.15510521)		 0.00016962 TDB
period 1355.458076188815
3.71		 1.4388e-05
3.939e-08		 d
yr
n .2655928695428365 2.8192e-09 deg/d
Q 2.566623381233664 1.8163e-08 au
   Orbit Determination Parameters
   # obs. used (total)      193  
   data-arc span      8490 days (23.24 yr)  
   first obs. used      1994-11-28  
   last obs. used      2018-02-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57643  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Mar-06 01:44:20  

Additional Information
 Earth MOID = 1.23914 au 
 Jupiter MOID = 2.64522 au 
 T_jup = 3.522 
[ 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 17.0   n/a MPO437262  

277265 (2005 SW31)          Discovered 2005-Sep-23 by Spacewatch at Kitt Peak
Reference: 20110517/Numbers.arcLast Updated: 2011-05-20

Alternate Designations
 2005 SW31 = 1994 WG6 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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