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160511 (1990 SD11)
Classification: Main-belt Asteroid          SPK-ID: 2160511
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2166636136084821 8.8879e-08  
a 2.609096315849682 4.4598e-08 AU
q 2.043800079805112 2.4133e-07 AU
i 14.75881875336377 1.0244e-05 deg
node 341.6474591294395 2.5179e-05 deg
peri 327.470630216761 3.1732e-05 deg
M 299.8604818543134 2.3528e-05 deg
tp 2457257.652669758189
(2015-Aug-23.15266976)
0.0001037 JED
period 1539.336595426114
4.21
3.9469e-05
1.081e-07
d
yr
n .2338669794960251 5.9963e-09 deg/d
Q 3.174392551894251 5.4261e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      457  
   data-arc span      8601 days (23.55 yr)  
   first obs. used      1990-09-16  
   last obs. used      2014-04-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .60511  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 08:25:31  

Additional Information
 Earth MOID = 1.04609 AU 
 T_jup = 3.331 
[ 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 14.6 mag n/a MPO264329  

160511 (1990 SD11)          Discovered 1990-Sep-16 by Holt, H. E. at Palomar (675)
Reference: 20070828/Numbers.arcLast Updated: 2007-08-30

Alternate Designations
 1990 SD11 = 2006 GC2 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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