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JPL Small-Body Database Browser
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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1539482328219595 4.2974e-08  
a 3.194944052632732 2.5607e-08 au
q 2.703088061764893 1.3636e-07 au
i 5.536812041305119 5.67e-06 deg
node 16.38367841319513 4.5256e-05 deg
peri 40.40277985411532 4.8309e-05 deg
M 214.1947545138551 1.8336e-05 deg
tp 2459845.319560710239
(2022-Sep-22.81956071)
0.00011169 TDB
period 2085.899179015383
5.71
2.5077e-05
6.866e-08
d
yr
n .1725874402855523 2.0749e-09 deg/d
Q 3.686800043500571 2.9549e-08 au
  Orbit Determination Parameters
   # obs. used (total)      615  
   data-arc span      9335 days (25.56 yr)  
   first obs. used      1993-09-17  
   last obs. used      2019-04-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54759  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 05:36:55  

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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