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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2165726346196197 1.0032e-07  
a 2.608975318994699 3.7573e-08 AU
q 2.043942660502454 2.7006e-07 AU
i 14.75894451298308 1.1742e-05 deg
node 341.6481819936061 2.7383e-05 deg
peri 327.4798029705698 3.4654e-05 deg
M 253.0643842064348 2.3748e-05 deg
tp 2457257.717933889775
(2015-Aug-23.21793389)
0.00010454 JED
period 1539.229516553863
4.21
3.325e-05
9.103e-08
d
yr
n .2338832488126877 5.0523e-09 deg/d
Q 3.174007977486944 4.571e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      434  
   data-arc span      8575 days (23.48 yr)  
   first obs. used      1990-09-16  
   last obs. used      2014-03-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .61876  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Mar-22 13:22:02  

Additional Information
 Earth MOID = 1.04437 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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