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52231 Sitnik (1978 RX1)
Classification: Main-belt Asteroid          SPK-ID: 2052231
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ 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 .2073514202408321 5.294e-08  
a 2.23709279380609 1.367e-08 AU
q 1.773228425799866 1.2074e-07 AU
i 3.971342935951194 5.7638e-06 deg
node 137.6752561920521 7.6459e-05 deg
peri 220.845356512545 7.8092e-05 deg
M 297.7348472014869 2.0948e-05 deg
tp 2457211.881503487166
(2015-Jul-08.38150349)
7.2458e-05 JED
period 1222.149755283297
3.35
1.1202e-05
3.067e-08
d
yr
n .294562919514353 2.6999e-09 deg/d
Q 2.700957161812314 1.6504e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      940  
   data-arc span      13086 days (35.83 yr)  
   first obs. used      1978-09-01  
   last obs. used      2014-06-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53039  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Aug-13 15:17:13  

Additional Information
 Earth MOID = .771687 AU 
 T_jup = 3.606 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.3 mag n/a MPO263764  

52231 Sitnik           Discovered 1978 Sept. 5 by N. S. Chernykh at the Crimean Astrophysical Observatory.
Grigorij Fedorovich Sitnik (1911-1996), professor of the Moscow State University, was one of the leading experts in the field of solar physics, absolute measurements of radiation fluxes and atmospheric optics. While working in Russia and overseas, he trained generations of astronomers.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20120406/MPCPages.arcLast Updated: 2012-04-09

[ show close-approach data ]
Alternate Designations
 1978 RX1 = 1988 PJ2 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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