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16556 (1991 VQ1)
Classification: Main-belt Asteroid          SPK-ID: 2016556
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2074220038763178 5.3764e-08  
a 2.28091882498098 1.3817e-08 AU
q 1.807806071624209 1.2097e-07 AU
i 7.340677336624521 6.429e-06 deg
node 71.73650320418812 4.6908e-05 deg
peri 297.5817632720772 5.0143e-05 deg
M 273.346955157704 2.3635e-05 deg
tp 2457303.361799283903
(2015-Oct-07.86179928)
8.455e-05 JED
period 1258.239083700228
3.44
1.1433e-05
3.13e-08
d
yr
n .2861141452873269 2.5998e-09 deg/d
Q 2.75403157833775 1.6683e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1022  
   data-arc span      23214 days (63.56 yr)  
   first obs. used      1950-12-09  
   last obs. used      2014-06-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51283  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 14:32:49  

Additional Information
 Earth MOID = .821906 AU 
 T_jup = 3.566 
[ 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 13.5 mag n/a MPO263495  

16556 (1991 VQ1)          Discovered 1991-Nov-04 by Ueda, S., Kaneda, H. at Kushiro (399)
Reference: 20000913/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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