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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05202363271122711 4.485e-08  
a 2.842728611185718 2.2258e-08 au
q 2.694839542019695 1.2745e-07 au
i 2.982474793427624 5.1153e-06 deg
node 65.36132555070392 0.00010424 deg
peri 235.6335061001186 0.00012149 deg
M 257.521885286971 6.3984e-05 deg
tp 2458098.845056005813
(2017-Dec-11.34505601)
0.00031236 JED
period 1750.658866671007
4.79
2.0561e-05
5.629e-08
d
yr
n .2056368644135472 2.4151e-09 deg/d
Q 2.99061768035174 2.3416e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1445  
   data-arc span      14775 days (40.45 yr)  
   first obs. used      1975-11-02  
   last obs. used      2016-04-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50805  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 13:12:57  

Additional Information
 Earth MOID = 1.6803 au 
 Jupiter MOID = 2.11355 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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