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8508 (1991 CU1)
Classification: Main-belt Asteroid          SPK-ID: 2008508
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1323037325728739 4.9441e-08  
a 2.286026509877579 1.0065e-08 au
q 1.983576669860236 1.1406e-07 au
i 3.874090194121461 4.5213e-06 deg
node 276.5234417678022 9.0259e-05 deg
peri 228.4932269521865 9.2856e-05 deg
M 77.72152439757191 2.0714e-05 deg
tp 2457127.941877001624
(2015-Apr-15.44187700)
7.2601e-05 JED
period 1262.467830372105
3.46
8.3375e-06
2.283e-08
d
yr
n .2851557808755349 1.8832e-09 deg/d
Q 2.588476349894922 1.1396e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1188  
   data-arc span      21777 days (59.62 yr)  
   first obs. used      1955-10-25  
   last obs. used      2015-06-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49428  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 11:59:34  

Additional Information
 Earth MOID = .998503 au 
 Jupiter MOID = 2.43785 au 
 T_jup = 3.587 
[ 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 13.7 mag n/a MPO337328  

8508 (1991 CU1)          Discovered 1991-Feb-14 by Ueda, S., Kaneda, H. at Kushiro
Reference: 19980313/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1991 CU1 = 1967 GD = 1981 JN2 = 1986 VT5 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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