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8447 Cornejo (1974 OE)
Classification: Main-belt Asteroid          SPK-ID: 2008447
[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB
Reference: JPL 1 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1182667051552742 5.4132e-08  
a 2.311332214076498 1.4861e-08 AU
q 2.037978568598426 1.2618e-07 AU
i 7.131962753907447 8.6845e-06 deg
node 15.9124984545348 3.8815e-05 deg
peri 277.3797562818495 6.0176e-05 deg
M 7.59064243148265 4.9163e-05 deg
tp 2456373.437493477843
(2013-Mar-21.93749348)		 0.00017518 JED
period 1283.488510480875
3.51		 1.2379e-05
3.389e-08		 d
yr
n .2804855649741044 2.7052e-09 deg/d
Q 2.58468585955457 1.6619e-08 AU
   Orbit Determination Parameters
   # obs. used (total)      1076  
   data-arc span      14156 days (38.76 yr)  
   first obs. used      1974-07-16  
   last obs. used      2013-04-18  
   planetary ephem.      DE405  
   SB-pert. ephem.      SB405-CPV-2  
   condition code      0  
   fit RMS      .52093  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Apr-29 13:31:15  

Additional Information
 Earth MOID = 1.03723 AU 
 T_jup = 3.565 
[ 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 14.1 mag n/a PDS3 (MPC 31483)  

8447 Cornejo           Discovered 1974 July 16 at the Félix Aguilar Observatory, El Leoncito.
Antonio Cornejo (b. 1930) was the founder and director for over 30 years of the Galileo Galilei Planetarium in Buenos Aires. He took part in numerous international meetings sponsored by planetarium associations.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20080520/MPCPages.arcLast Updated: 2008-05-22

Alternate Designations
 1974 OE = 1978 TN9 = 1978 TR6 
[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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