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11791 Sofiyavarzar (1978 SH7)
Classification: Main-belt Asteroid          SPK-ID: 2011791
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2373823717800881 4.6444e-08  
a 2.621982708782264 1.4462e-08 au
q 1.99957023460515 1.2781e-07 au
i 5.662808393169928 4.2967e-06 deg
node 347.2353414837978 3.5293e-05 deg
peri 28.70385637775053 3.5925e-05 deg
M 294.957385795961 9.2165e-06 deg
tp 2459280.680979517156
(2021-Mar-07.18097952)
4.1253e-05 TDB
period 1550.754899084493
4.25
1.283e-05
3.513e-08
d
yr
n .2321450025484558 1.9206e-09 deg/d
Q 3.244395182959379 1.7895e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1077  
   data-arc span      15290 days (41.86 yr)  
   first obs. used      1978-09-26  
   last obs. used      2020-08-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50719  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 00:27:36  

Additional Information
 Earth MOID = 1.00272 au 
 Jupiter MOID = 2.23707 au 
 T_jup = 3.357 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.7   n/a MPO435811  

11791 Sofiyavarzar           Discovered 1978 Sept. 26 by L. V. Zhuravleva at the Crimean Astrophysical Observatory.
Sofiya Mikhajlovna Varzar (1878-1957), an expert on the dynamics of minor planets, was on the staff of the Institute of Theoretical Astronomy from 1934 to 1951. She made a major contribution to improving orbits and calculating ephemerides of many minor planets.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030318/MPCPages.arcLast Updated: 2003-10-02

[ show close-approach data ]
Alternate Designations
 1978 SH7 = 1999 RN115 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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