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308431 (2005 SK155)
Classification: Main-belt Asteroid          SPK-ID: 2308431
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2108737165361169 7.1388e-08  
a 2.575916113628099 3.2377e-08 au
q 2.032723109262071 1.89e-07 au
i 12.96172262455117 1.3843e-05 deg
node 280.848071921245 3.0531e-05 deg
peri 96.29553542488108 7.8791e-05 deg
M 185.7785535787819 6.977e-05 deg
tp 2459731.294238688677
(2022-May-31.79423869)
0.00030414 TDB
period 1510.066248054538
4.13
2.8471e-05
7.795e-08
d
yr
n .2384001367249936 4.4948e-09 deg/d
Q 3.119109117994126 3.9205e-08 au
  Orbit Determination Parameters
   # obs. used (total)      198  
   data-arc span      6347 days (17.38 yr)  
   first obs. used      2001-08-23  
   last obs. used      2019-01-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54333  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 04:42:49  

Additional Information
 Earth MOID = 1.08301 au 
 Jupiter MOID = 2.53052 au 
 T_jup = 3.361 
[ 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 16.2   n/a MPO471234  

308431 (2005 SK155)          Discovered 2005-Sep-26 by NEAT at Palomar
Reference: 20111210/Numbers.arcLast Updated: 2011-12-12
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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