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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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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2369148429286035 4.5382e-08  
a 2.620645961506873 1.4118e-08 au
q 1.999776035164993 1.2545e-07 au
i 5.664902034877003 4.0559e-06 deg
node 347.2154521562045 3.3493e-05 deg
peri 28.75825598730168 3.4177e-05 deg
M 341.3374537096084 9.3466e-06 deg
tp 2459280.830293609096
(2021-Mar-07.33029361)
4.0663e-05 TDB
period 1549.569134312797
4.24
1.2522e-05
3.428e-08
d
yr
n .2323226450684647 1.8774e-09 deg/d
Q 3.241515887848752 1.7463e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1191  
   data-arc span      15450 days (42.30 yr)  
   first obs. used      1978-09-26  
   last obs. used      2021-01-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49202  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 19:09:59  

Additional Information
 Earth MOID = 1.00153 au 
 Jupiter MOID = 2.24107 au 
 T_jup = 3.358 
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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 14.79   n/a E2021B10  

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

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