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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1324138793469896 4.9457e-08  
a 2.286375016021279 1.002e-08 AU
q 1.983627230507865 1.1421e-07 AU
i 3.874997283479581 4.5221e-06 deg
node 276.5461315653478 9.0217e-05 deg
peri 228.6494835978755 9.28e-05 deg
M 323.5283475250814 2.0661e-05 deg
tp 2457128.430048864722
(2015-Apr-15.93004886)
7.2467e-05 JED
period 1262.75653736752
3.46
8.3011e-06
2.273e-08
d
yr
n .285090585039057 1.8741e-09 deg/d
Q 2.589122801534692 1.1347e-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 = .998909 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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