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JPL Small-Body Database Browser
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52231 Sitnik (1978 RX1)
Classification: Main-belt Asteroid          SPK-ID: 2052231
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2067562648234895 3.1709e-08  
a 2.237115009527057 5.9666e-09 au
q 1.774577466176677 7.1433e-08 au
i 3.969870248034075 3.4093e-06 deg
node 137.6065789033703 4.7984e-05 deg
peri 221.1935896755723 4.8615e-05 deg
M 166.3864332977712 7.9075e-06 deg
tp 2458435.632867167410
(2018-Nov-13.13286717)
2.6361e-05 TDB
period 1222.167960387769
3.35
4.8894e-06
1.339e-08
d
yr
n .2945585317796904 1.1784e-09 deg/d
Q 2.699652552877436 7.2002e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2024  
   data-arc span      15215 days (41.66 yr)  
   first obs. used      1978-09-01  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48693  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 10:19:58  

Additional Information
 Earth MOID = .772955 au 
 Jupiter MOID = 2.74913 au 
 T_jup = 3.606 
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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 14.4   n/a MPO347877  
diameter diameter 2.621 km 0.417 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
geometric albedo albedo 0.356   0.134 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

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

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Alternate Designations
 1978 RX1 = 1988 PJ2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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