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JPL Small-Body Database Browser
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442721 (2012 VB31)
Classification: Mars-crossing Asteroid          SPK-ID: 2442721
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2452283529141139 9.1212e-08  
a 2.170238471022041 3.6499e-08 au
q 1.638034465342461 2.2202e-07 au
i 6.055376863003165 5.2736e-06 deg
node 80.10774825553742 5.0856e-05 deg
peri 315.3964394049595 5.4147e-05 deg
M 16.40902176466621 2.4987e-05 deg
tp 2458547.272042205586
(2019-Mar-04.77204221)
7.9848e-05 TDB
period 1167.77618317571
3.20
2.9459e-05
8.065e-08
d
yr
n .3082782515918399 7.7769e-09 deg/d
Q 2.702442476701621 4.545e-08 au
  Orbit Determination Parameters
   # obs. used (total)      155  
   data-arc span      6329 days (17.33 yr)  
   first obs. used      2001-04-16  
   last obs. used      2018-08-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53482  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 14:53:58  

Additional Information
 Earth MOID = .651558 au 
 Jupiter MOID = 2.72957 au 
 T_jup = 3.643 
[ 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 18.0   n/a MPO456096  

442721 (2012 VB31)          Discovered 2009-Oct-18 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-09-02

Alternate Designations
 2012 VB31 = 2009 YW13 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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