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442731 (2012 VU91)
Classification: Main-belt Asteroid          SPK-ID: 2442731
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05059540725929353 7.0109e-08  
a 2.696025802086901 3.9666e-08 au
q 2.559619278648751 2.1076e-07 au
i 8.679853246476572 8.3656e-06 deg
node 220.828921749299 4.1698e-05 deg
peri 52.99378666743809 9.1239e-05 deg
M 36.86896669156976 8.0071e-05 deg
tp 2458834.906624689541
(2019-Dec-17.40662469)
0.00035963 TDB
period 1616.904959948233
4.43
3.5684e-05
9.77e-08
d
yr
n .2226475945818892 4.9137e-09 deg/d
Q 2.832432325525052 4.1673e-08 au
  Orbit Determination Parameters
   # obs. used (total)      129  
   data-arc span      5732 days (15.69 yr)  
   first obs. used      2003-10-23  
   last obs. used      2019-07-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .67176  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 10:42:44  

Additional Information
 Earth MOID = 1.55456 au 
 Jupiter MOID = 2.20753 au 
 T_jup = 3.351 
[ 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 16.6   n/a MPO477091  

442731 (2012 VU91)          Discovered 2003-Oct-23 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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