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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2072239813184237 5.1569e-08  
a 2.280735452396622 8.4604e-09 au
q 1.808112371616918 1.1692e-07 au
i 7.340454236612973 5.4333e-06 deg
node 71.72996976197864 4.1343e-05 deg
peri 297.5475573785302 4.3158e-05 deg
M 85.05217517636591 1.1523e-05 deg
tp 2457303.269261030129
(2015-Oct-07.76926103)
4.0111e-05 JED
period 1258.087354112576
3.44
7.0003e-06
1.917e-08
d
yr
n .2861486516204078 1.5922e-09 deg/d
Q 2.753358533176327 1.0214e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1292  
   data-arc span      23850 days (65.30 yr)  
   first obs. used      1950-12-09  
   last obs. used      2016-03-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50267  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 13:25:24  

Additional Information
 Earth MOID = .821043 au 
 Jupiter MOID = 2.72498 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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