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91955 (1999 VK77)
Classification: Main-belt Asteroid          SPK-ID: 2091955
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 .1539482707172837 4.2929e-08  
a 3.1949440646067 2.5525e-08 au
q 2.70308795082205 1.3612e-07 au
i 5.536812522149741 5.638e-06 deg
node 16.38368519428195 4.4129e-05 deg
peri 40.40278154959159 4.7145e-05 deg
M 214.1947449804989 1.8217e-05 deg
tp 2459845.319620697377
(2022-Sep-22.81962070)
0.00011112 TDB
period 2085.89919074164
5.71
2.4997e-05
6.844e-08
d
yr
n .172587439315321 2.0683e-09 deg/d
Q 3.686800178391351 2.9455e-08 au
  Orbit Determination Parameters
   # obs. used (total)      630  
   data-arc span      9387 days (25.70 yr)  
   first obs. used      1993-09-17  
   last obs. used      2019-05-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54244  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 22:40:25  

Additional Information
 Earth MOID = 1.71778 au 
 Jupiter MOID = 1.71063 au 
 T_jup = 3.170 
[ 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 14.7   n/a MPO436415  
diameter diameter 6.791 km 0.375 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.061   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91955 (1999 VK77)          Discovered 1999-Nov-03 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1999 VK77 = 2001 CN7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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