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441840 (2009 VK31)
Classification: Main-belt Asteroid          SPK-ID: 2441840
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08163856685199584 4.5653e-08  
a 2.202180269059369 2.1149e-08 au
q 2.022397427943619 9.4733e-08 au
i 4.585366559956738 6.4671e-06 deg
node 10.47155137768452 7.4107e-05 deg
peri 62.83687211419519 9.0849e-05 deg
M 66.64136167207353 4.9926e-05 deg
tp 2458779.537238348440
(2019-Oct-23.03723835)
0.00016579 TDB
period 1193.651993276961
3.27
1.7196e-05
4.708e-08
d
yr
n .3015954415756333 4.3447e-09 deg/d
Q 2.381963110175118 2.2876e-08 au
  Orbit Determination Parameters
   # obs. used (total)      112  
   data-arc span      3721 days (10.19 yr)  
   first obs. used      2009-10-26  
   last obs. used      2020-01-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55163  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-30 11:45:06  

Additional Information
 Earth MOID = 1.0416 au 
 Jupiter MOID = 2.78581 au 
 T_jup = 3.655 
[ 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 18.4   n/a MPO397575  

441840 (2009 VK31)          Discovered 2009-Oct-26 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02

Alternate Designations
 2009 VK31 = 2012 TF28 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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