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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2419005169597979 8.421e-08  
a 2.661351001841878 1.9866e-08 AU
q 2.017568818684852 2.1683e-07 AU
i 13.3029900804234 8.3817e-06 deg
node 193.8423781949321 2.2595e-05 deg
peri 195.7081154830115 2.5835e-05 deg
M 146.5937483090562 1.5065e-05 deg
tp 2456154.749708418082
(2012-Aug-15.24970842)
6.1378e-05 JED
period 1585.811862040567
4.34
1.7756e-05
4.861e-08
d
yr
n .227013057864736 2.5419e-09 deg/d
Q 3.305133184998905 2.4672e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      755  
   data-arc span      13439 days (36.79 yr)  
   first obs. used      1977-09-11  
   last obs. used      2014-06-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55873  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 12:27:50  

Additional Information
 Earth MOID = 1.02361 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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