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12187 Lenagoryunova (1977 RL7)
Classification: Main-belt Asteroid          SPK-ID: 2012187
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 .2418170646010577 7.472e-08  
a 2.661492332787054 1.8323e-08 AU
q 2.017898069414267 1.9362e-07 AU
i 13.30237596704015 7.6578e-06 deg
node 193.8416809552093 2.207e-05 deg
peri 195.688238721845 2.514e-05 deg
M 192.0286376383748 1.5418e-05 deg
tp 2457740.478326747643
(2016-Dec-17.97832675)
7.401e-05 JED
period 1585.938185436849
4.34
1.6378e-05
4.484e-08
d
yr
n .2269949757851612 2.3441e-09 deg/d
Q 3.305086596159841 2.2754e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      818  
   data-arc span      13798 days (37.78 yr)  
   first obs. used      1977-09-11  
   last obs. used      2015-06-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55031  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 12:08:53  

Additional Information
 Earth MOID = 1.02507 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 13.8 mag n/a MPO256955  

12187 Lenagoryunova           Discovered 1977 Sept. 11 by N. S. Chernykh at the Crimean Astrophysical Observatory.
Elena (Lena) Viktorovna Goryunova (b. 1961), hydrologist at Sebastopol Institute of Hydrography, is a friend of the discoverer's daughter.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010902/MPCPages.arcLast Updated: 2009-05-11

Alternate Designations
 1977 RL7 = 1990 SL1 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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