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277256 (2005 SW2)
Classification: Main-belt Asteroid          SPK-ID: 2277256
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1350255541713001 6.4742e-08  
a 2.296510458366679 9.408e-09 au
q 1.986422861065531 1.4649e-07 au
i 6.827132604088363 7.2747e-06 deg
node 24.24877024725178 3.0519e-05 deg
peri 323.815798183032 3.7287e-05 deg
M 150.2393843577433 2.1387e-05 deg
tp 2458670.003695719792
(2019-Jul-05.50369572)
7.4112e-05 TDB
period 1271.162487501447
3.48
7.8112e-06
2.139e-08
d
yr
n .2832053364850339 1.7403e-09 deg/d
Q 2.606598055667826 1.0678e-08 au
  Orbit Determination Parameters
   # obs. used (total)      343  
   data-arc span      8223 days (22.51 yr)  
   first obs. used      1998-09-25  
   last obs. used      2021-03-31  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5535  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 11:29:43  

Additional Information
 Earth MOID = .983513 au 
 Jupiter MOID = 2.81197 au 
 T_jup = 3.573 
[ 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 17.13   n/a MPCxxxxx  

277256 (2005 SW2)          Discovered 2005-Sep-23 by CSS at Catalina
Reference: 20110517/Numbers.arcLast Updated: 2011-05-20

Alternate Designations
 2005 SW2 = 2004 JN52 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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