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216910 Vnukov (2009 JM4)
Classification: Main-belt Asteroid          SPK-ID: 2216910
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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2107318452337818 9.0359e-08  
a 2.536240630734254 1.29e-08 au
q 2.001773962662734 2.3358e-07 au
i 12.96369220196376 3.5904e-06 deg
node 127.2926204639944 3.7782e-05 deg
peri 122.0740949117045 3.9327e-05 deg
M 308.6029530698243 1.4223e-05 deg
tp 2459411.129781155176
(2021-Jul-15.62978116)
5.8977e-05 TDB
period 1475.31279995281
4.04
1.1256e-05
3.082e-08
d
yr
n .2440160486721969 1.8617e-09 deg/d
Q 3.070707298805774 1.5618e-08 au
  Orbit Determination Parameters
   # obs. used (total)      797  
   data-arc span      9255 days (25.34 yr)  
   first obs. used      1995-12-30  
   last obs. used      2021-05-02  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50229  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:42:06  

Additional Information
 Earth MOID = 1.01845 au 
 Jupiter MOID = 2.10721 au 
 T_jup = 3.382 
[ 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 15.47   n/a E2021B55  
diameter diameter 4.765 km 0.160 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 8.90 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Warner, B.D. (2014) Minor Planet Bull. 41, 27-32.]
geometric albedo albedo 0.059   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

216910 Vnukov           Discovered 2009 May 13 at Andrushivka.
Viktor Milentinovich Vnukov (b. 1950), a pilot and engineer, was born in the Crimea, where he still lives. He has been a constant supporter of the protection of the unique flora and fauna of the Crimean peninsula. He helped to set up contacts between the Crimean Astrophysical Observatory and Andrushivka.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20100330/MPCPages.arcLast Updated: 2010-04-05
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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