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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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05381765285065026 5.0215e-08  
a 2.839748775922777 2.6081e-08 AU
q 2.686920162117107 1.3765e-07 AU
i 2.98306788150152 6.0845e-06 deg
node 65.46152969636044 0.00010492 deg
peri 234.7319168265559 0.00012308 deg
M 134.9938878439804 6.4265e-05 deg
tp 2456345.064571312332
(2013-Feb-21.56457131)
0.00031235 JED
period 1747.90694672242
4.79
2.4079e-05
6.592e-08
d
yr
n .2059606208872002 2.8373e-09 deg/d
Q 2.992577389728448 2.7484e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1214  
   data-arc span      14379 days (39.37 yr)  
   first obs. used      1975-11-02  
   last obs. used      2015-03-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50286  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-07 16:42:37  

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 13.3 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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