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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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2418170662270594 8.3072e-08  
a 2.661492332949786 1.9639e-08 AU
q 2.017898065210057 2.1405e-07 AU
i 13.30237432191968 8.3295e-06 deg
node 193.8416827169216 2.2484e-05 deg
peri 195.6882371155486 2.5694e-05 deg
M 192.0286374691839 1.544e-05 deg
tp 2457740.478327560860
(2016-Dec-17.97832756)
7.4299e-05 JED
period 1585.938185582303
4.34
1.7554e-05
4.806e-08
d
yr
n .2269949757643424 2.5125e-09 deg/d
Q 3.305086600689516 2.4388e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      768  
   data-arc span      13683 days (37.46 yr)  
   first obs. used      1977-09-11  
   last obs. used      2015-02-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55426  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 14:30:00  

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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