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11907 Naranen (1992 ER8)
Classification: Main-belt Asteroid          SPK-ID: 2011907
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05250618305566783 4.9438e-08  
a 2.84311160301149 2.5369e-08 au
q 2.693830664736075 1.3598e-07 au
i 2.981717759336378 5.9631e-06 deg
node 65.4105489466297 0.00010441 deg
peri 235.0553709263042 0.00012305 deg
M 217.0060915479385 6.532e-05 deg
tp 2458096.011514961594
(2017-Dec-08.51151496)
0.00031819 JED
period 1751.012669676869
4.79
2.3436e-05
6.416e-08
d
yr
n .2055953142054845 2.7518e-09 deg/d
Q 2.992392541286904 2.6701e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1276  
   data-arc span      14656 days (40.13 yr)  
   first obs. used      1975-11-02  
   last obs. used      2015-12-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50462  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 13:19:04  

Additional Information
 Earth MOID = 1.67775 au 
 Jupiter MOID = 2.11047 au 
 T_jup = 3.305 
[ 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 13.3 mag n/a MPO332931  

11907 Näränen           Discovered 1992 Mar. 2 at the European Southern Observatory in the course of the Uppsala-ESO Survey of Asteroids and Comets.
Jyri Näränen (b. 1979) is a Finnish astronomer who works on the surface composition and structure of Mercury and the moon.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20090806/MPCPages.arcLast Updated: 2011-05-09

Alternate Designations
 1992 ER8 = 1975 VL2 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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