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91973 (1999 VL93)
Classification: Main-belt Asteroid          SPK-ID: 2091973
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03166865992240266 4.6013e-08  
a 3.07104047998674 2.2837e-08 au
q 2.973784743418108 1.4329e-07 au
i 10.77193268533269 5.9439e-06 deg
node 199.6826511432541 2.1585e-05 deg
peri 307.2581620506378 8.9325e-05 deg
M 175.3635468930139 8.8933e-05 deg
tp 2458042.945374450626
(2017-Oct-16.44537445)
0.00048308 TDB
period 1965.743002495735
5.38
2.1927e-05
6.003e-08
d
yr
n .1831368594688822 2.0428e-09 deg/d
Q 3.168296216555373 2.356e-08 au
  Orbit Determination Parameters
   # obs. used (total)      929  
   data-arc span      9818 days (26.88 yr)  
   first obs. used      1993-09-15  
   last obs. used      2020-08-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52805  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 08:21:24  

Additional Information
 Earth MOID = 1.99382 au 
 Jupiter MOID = 1.82625 au 
 T_jup = 3.203 
[ 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 14.1   n/a MPO436415  
diameter diameter 4.740 km 0.383 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.216   0.048 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

91973 (1999 VL93)          Discovered 1999-Nov-09 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1999 VL93 = 1999 TF15 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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