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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0538176520540335 5.0234e-08  
a 2.839748777964661 2.6233e-08 AU
q 2.686920166311292 1.3781e-07 AU
i 2.983066758929624 6.1068e-06 deg
node 65.46155642159249 0.00010581 deg
peri 234.7318845138486 0.00012407 deg
M 134.9938927854445 6.4568e-05 deg
tp 2456345.064546613132
(2013-Feb-21.56454661)
0.00031391 JED
period 1747.906948607634
4.79
2.422e-05
6.631e-08
d
yr
n .2059606206650604 2.8539e-09 deg/d
Q 2.99257738961803 2.7644e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1159  
   data-arc span      14327 days (39.23 yr)  
   first obs. used      1975-11-02  
   last obs. used      2015-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50808  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Feb-04 13:33:31  

Additional Information
 Earth MOID = 1.6738 AU 
 T_jup = 3.306 
[ 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 13.2 mag n/a MPO267754  

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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