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8450 Egorov (1977 QL1)
Classification: Main-belt Asteroid          SPK-ID: 2008450
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 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0865014791967558 6.6499e-08  
a 2.74961070933669 2.2459e-08 AU
q 2.511765315763826 1.8797e-07 AU
i 4.882341363881845 7.5506e-06 deg
node 342.9190244786579 6.701e-05 deg
peri 33.52248865013313 7.8121e-05 deg
M 356.9087429115086 4.2939e-05 deg
tp 2456814.800060251504
(2014-Jun-06.30006025)
0.0001987 JED
period 1665.348931898081
4.56
2.0404e-05
5.586e-08
d
yr
n .2161709135572507 2.6485e-09 deg/d
Q 2.987456102909555 2.4401e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1052  
   data-arc span      19632 days (53.75 yr)  
   first obs. used      1959-10-28  
   last obs. used      2013-07-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54905  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Aug-26 19:16:34  

Additional Information
 Earth MOID = 1.51283 AU 
 T_jup = 3.336 
[ 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 13.1 mag n/a MPO267741  
SMASSII spectral type spec_B C   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

8450 Egorov           Discovered 1977 Aug. 19 by N. S. Chernykh at the Crimean Astrophysical Observatory.
Vsevolod Aleksandrovich Egorov (1930-2001) was one of the founders of the modern theory of the space flight dynamics. One of the leading researchers at the Keldysh Institute of Applied Mathematics and a professor at Moscow University, he was a pioneer in studying trajectories from the earth to 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: 20020328/MPCPages.arcLast Updated: 2003-10-02

Alternate Designations
 1977 QL1 = 1959 UC = 1975 ED4 = 1986 RL9 = 1991 RN7 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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