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392890 (2012 VY31)
Classification: Main-belt Asteroid          SPK-ID: 2392890
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05965449891045314 1.6225e-07  
a 2.558150959975439 3.612e-08 au
q 2.40554574632081 4.4097e-07 au
i 4.905945574441531 1.1143e-05 deg
node 256.6734749880836 0.00013553 deg
peri 186.3701174914091 0.0002475 deg
M 280.4387111209949 0.00021031 deg
tp 2459330.783585002593
(2021-Apr-26.28358500)
0.00087744 TDB
period 1494.471649167938
4.09
3.1652e-05
8.666e-08
d
yr
n .2408878082099675 5.1018e-09 deg/d
Q 2.710756173630068 3.8275e-08 au
  Orbit Determination Parameters
   # obs. used (total)      173  
   data-arc span      4345 days (11.90 yr)  
   first obs. used      2008-11-30  
   last obs. used      2020-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53121  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 16:21:45  

Additional Information
 Earth MOID = 1.42151 au 
 Jupiter MOID = 2.43135 au 
 T_jup = 3.429 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.5   n/a MPO440695  

392890 (2012 VY31)          Discovered 2008-Nov-30 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-04-17

[ show close-approach data ]
Alternate Designations
 2012 VY31 = 2008 WW111 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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