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442493 (2011 VB9)
Classification: Main-belt Asteroid          SPK-ID: 2442493
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 .2628770315317333 1.0373e-07  
a 2.594730656107939 3.2492e-08 au
q 1.912635563605897 2.9021e-07 au
i 14.22185088537084 6.5448e-06 deg
node 179.299452260566 2.0529e-05 deg
peri 166.2107732889956 2.9863e-05 deg
M 50.14126858575661 1.5122e-05 deg
tp 2458787.867488912044
(2019-Oct-31.36748891)
6.3426e-05 TDB
period 1526.640752232757
4.18
2.8675e-05
7.851e-08
d
yr
n .235811863055201 4.4293e-09 deg/d
Q 3.27682574860998 4.1033e-08 au
  Orbit Determination Parameters
   # obs. used (total)      198  
   data-arc span      4905 days (13.43 yr)  
   first obs. used      2006-05-08  
   last obs. used      2019-10-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54414  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 16:00:56  

Additional Information
 Earth MOID = .909254 au 
 Jupiter MOID = 2.18061 au 
 T_jup = 3.326 
[ 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 17.7   n/a MPO446755  
diameter diameter 2.519 km 0.498 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.092   0.019 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

442493 (2011 VB9)          Discovered 2006-May-08 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02

Alternate Designations
 2011 VB9 = 2010 OP33 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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