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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2416385978690153 7.4542e-08  
a 2.662553376371901 1.8344e-08 au
q 2.019177711753982 1.9325e-07 au
i 13.30123312116068 7.6371e-06 deg
node 193.8305732989289 2.2069e-05 deg
peri 195.6068292314494 2.5143e-05 deg
M 328.278760000413 1.6538e-05 deg
tp 2457740.327813359763
(2016-Dec-17.82781336)
7.4076e-05 JED
period 1586.88666679393
4.34
1.6399e-05
4.49e-08
d
yr
n .2268593010030936 2.3444e-09 deg/d
Q 3.305929040989819 2.2776e-08 au
  Orbit Determination Parameters
   # obs. used (total)      821  
   data-arc span      13899 days (38.05 yr)  
   first obs. used      1977-09-11  
   last obs. used      2015-10-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54951  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Oct-28 16:25:48  

Additional Information
 Earth MOID = 1.02512 au 
 Jupiter MOID = 2.14861 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 13.8 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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