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91933 (1999 VB54)
Classification: Main-belt Asteroid          SPK-ID: 2091933
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1080693580862533 4.2051e-08  
a 3.148310718212197 1.9984e-08 au
q 2.808074799838934 1.3048e-07 au
i 12.27392763351103 4.5673e-06 deg
node 36.87205690624406 1.7961e-05 deg
peri 157.2723813490983 2.551e-05 deg
M 91.45354280260132 1.7162e-05 deg
tp 2458482.162246488526
(2018-Dec-29.66224649)
9.7833e-05 TDB
period 2040.397622068098
5.59
1.9428e-05
5.319e-08
d
yr
n .1764361985656074 1.6799e-09 deg/d
Q 3.48854663658546 2.2144e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1501  
   data-arc span      7626 days (20.88 yr)  
   first obs. used      1999-09-14  
   last obs. used      2020-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50183  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 08:21:04  

Additional Information
 Earth MOID = 1.81018 au 
 Jupiter MOID = 1.47921 au 
 T_jup = 3.164 
[ 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 13.5   n/a MPO348078  
diameter diameter 10.489 km 0.286 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.070   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91933 (1999 VB54)          Discovered 1999-Nov-04 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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