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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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2166636079692626 8.8797e-08  
a 2.609096314025815 4.4582e-08 AU
q 2.043800093089677 2.4116e-07 AU
i 14.75881874947223 1.0244e-05 deg
node 341.6474587955366 2.5104e-05 deg
peri 327.4706312715364 3.1669e-05 deg
M 299.8604820138127 2.3527e-05 deg
tp 2457257.652668806540
(2015-Aug-23.15266881)
0.0001037 JED
period 1539.336593812023
4.21
3.9454e-05
1.08e-07
d
yr
n .2338669797412492 5.9942e-09 deg/d
Q 3.174392534961952 5.4242e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      459  
   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      .60882  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 20:40:40  

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
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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