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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1601615728158233 7.8654e-08  
a 2.784290294827401 2.5977e-08 AU
q 2.338353982032012 2.1818e-07 AU
i 17.18682650157626 1.1951e-05 deg
node 353.4737505032725 2.3702e-05 deg
peri 43.50786500034496 4.2188e-05 deg
M 225.8431419796368 3.2585e-05 deg
tp 2457632.883565563995
(2016-Sep-01.38356556)
0.00015532 JED
period 1696.954497611169
4.65
2.3749e-05
6.502e-08
d
yr
n .2121447572735615 2.9689e-09 deg/d
Q 3.230226607622789 3.0138e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      765  
   data-arc span      18184 days (49.79 yr)  
   first obs. used      1964-08-08  
   last obs. used      2014-05-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53471  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-16 13:25:02  

Additional Information
 Earth MOID = 1.36954 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 (413)
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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