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160511 (1990 SD11)
Classification: Main-belt Asteroid          SPK-ID: 2160511
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2165548840709755 5.0191e-08  
a 2.609548896683684 1.8519e-08 au
q 2.044438337884807 1.3098e-07 au
i 14.75681120120191 5.8093e-06 deg
node 341.5863920474353 1.7036e-05 deg
peri 327.2151526225973 1.9721e-05 deg
M 94.63140567847984 1.2747e-05 deg
tp 2458795.756972678342
(2019-Nov-08.25697268)
5.2011e-05 TDB
period 1539.737138966883
4.22
1.639e-05
4.487e-08
d
yr
n .2338061418987069 2.4888e-09 deg/d
Q 3.174659455482561 2.2529e-08 au
  Orbit Determination Parameters
   # obs. used (total)      973  
   data-arc span      11082 days (30.34 yr)  
   first obs. used      1990-09-16  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50612  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 11:01:46  

Additional Information
 Earth MOID = 1.04413 au 
 Jupiter MOID = 2.19893 au 
 T_jup = 3.331 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.71   n/a E2021B55  
diameter diameter 5.025 km 0.575 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.133   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

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 | Mission Design | Physical Parameters | Discovery Circumstances ]
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