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91939 (1999 VY60)
Classification: Main-belt Asteroid          SPK-ID: 2091939
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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1689865992476507 3.9457e-08  
a 2.759185024748936 1.4214e-08 au
q 2.292919730721569 1.1229e-07 au
i 16.08958279504286 4.5841e-06 deg
node 47.90238297091777 1.4257e-05 deg
peri 121.2283890024963 1.9512e-05 deg
M 64.62690211870994 1.2455e-05 deg
tp 2458699.975072479818
(2019-Aug-04.47507248)
5.7352e-05 TDB
period 1674.054772245441
4.58
1.2936e-05
3.542e-08
d
yr
n .2150467272448471 1.6617e-09 deg/d
Q 3.225450318776304 1.6616e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1399  
   data-arc span      7559 days (20.70 yr)  
   first obs. used      1999-10-07  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47136  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 00:42:16  

Additional Information
 Earth MOID = 1.3387 au 
 Jupiter MOID = 1.86443 au 
 T_jup = 3.265 
[ 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 13.8   n/a MPO474799  
diameter diameter 9.721 km 0.092 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.077   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91939 (1999 VY60)          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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