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3269 Vibert-Douglas (1981 EX16)
Classification: Main-belt Asteroid          SPK-ID: 2003269
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1598874323625571 7.105e-08  
a 2.784809844172992 2.5055e-08 au
q 2.3395537485702 1.9984e-07 au
i 17.18719535457297 1.0808e-05 deg
node 353.4667508057527 2.3653e-05 deg
peri 43.41179801491146 4.0083e-05 deg
M 353.177577662967 3.1895e-05 deg
tp 2457632.668280341614
(2016-Sep-01.16828034)
0.00015052 JED
period 1697.429498042087
4.65
2.2908e-05
6.272e-08
d
yr
n .2120853917144981 2.8622e-09 deg/d
Q 3.230065939775785 2.9061e-08 au
  Orbit Determination Parameters
   # obs. used (total)      788  
   data-arc span      18659 days (51.09 yr)  
   first obs. used      1964-08-08  
   last obs. used      2015-09-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53724  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Oct-05 13:19:23  

Additional Information
 Earth MOID = 1.36944 au 
 Jupiter MOID = 2.33314 au 
 T_jup = 3.248 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.5 mag n/a MPO263375  

3269 Vibert-Douglas (1981 EX16)          Discovered 1981-Mar-06 by Bus, S. J. at Siding Spring
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1981 EX16 = 1969 RG = 1969 RR1 = 1979 YH1 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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