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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2073000094347586 5.2232e-08  
a 2.280849282129295 8.7241e-09 au
q 1.80802920442463 1.1873e-07 au
i 7.340388451996602 5.4506e-06 deg
node 71.73052862989013 4.3815e-05 deg
peri 297.5502928073949 4.5543e-05 deg
M 27.81416725859944 1.2093e-05 deg
tp 2457303.290911638945
(2015-Oct-07.79091164)
4.2182e-05 JED
period 1258.181540529865
3.44
7.2187e-06
1.976e-08
d
yr
n .2861272307717941 1.6416e-09 deg/d
Q 2.753669359833961 1.0533e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1186  
   data-arc span      23746 days (65.01 yr)  
   first obs. used      1950-12-09  
   last obs. used      2015-12-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5056  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 13:34:14  

Additional Information
 Earth MOID = .820426 au 
 Jupiter MOID = 2.72518 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 13.6 mag n/a MPO347654  

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