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22407 (1995 SK2)
Classification: Main-belt Asteroid          SPK-ID: 2022407
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1940811269609244 7.5662e-08  
a 2.432487370747917 2.0351e-08 AU
q 1.960387480514945 1.9055e-07 AU
i 3.113364155239031 8.1953e-06 deg
node 349.4303125829722 0.00011942 deg
peri 355.4935378733516 0.00012094 deg
M 332.6454802472276 2.851e-05 deg
tp 2456905.793342352881
(2014-Sep-05.29334235)
0.00011075 JED
period 1385.716276126376
3.79
1.739e-05
4.761e-08
d
yr
n .2597934412709231 3.2603e-09 deg/d
Q 2.904587260980889 2.4301e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      511  
   data-arc span      6448 days (17.65 yr)  
   first obs. used      1995-09-17  
   last obs. used      2013-05-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .61982  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Aug-05 19:58:49  

Additional Information
 Earth MOID = .951708 AU 
 T_jup = 3.479 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.3 mag n/a PDS3 (MPO 9987)  

22407 (1995 SK2)          Discovered 1995-Sep-17 by Shimizu, Y., Urata, T. at Nachi-Katsuura (905)
Reference: 20010309/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1995 SK2 = 1998 HR78 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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