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92389 Gretskij (2000 JZ3)
Classification: Main-belt Asteroid          SPK-ID: 2092389
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbit Diagram
Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet was implemented using 2-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances. For accurate long-term ephemerides, please instead use our Horizons system.

Note: If the applet has stopped working because of a recent Java upgrade, here is a possible workaround.
Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).

Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1441984556092292 7.4959e-08  
a 2.223130720296717 1.8537e-08 au
q 1.902558703812497 1.5962e-07 au
i 8.666009303217351 6.6639e-06 deg
node 82.67512547354379 5.7003e-05 deg
peri 216.7956816248692 6.9475e-05 deg
M 253.2502361220302 4.6254e-05 deg
tp 2457959.513144128378
0.00015823 JED
period 1210.726161736162
n .2973422160827563 3.719e-09 deg/d
Q 2.543702736780937 2.121e-08 au
  Orbit Determination Parameters
   # obs. used (total)      186  
   data-arc span      5832 days (15.97 yr)  
   first obs. used      2000-03-25  
   last obs. used      2016-03-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .6089  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Mar-24 19:09:29  

Additional Information
 Earth MOID = .893927 au 
 Jupiter MOID = 2.63678 au 
 T_jup = 3.619 
[ 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 16.8 mag n/a MPO259886  

92389 Gretskij           Discovered 2000 May 3 by P. Pravec and P. Kušnirák at Ondřejov.
Andrej M. Gretskij (b. 1945) is an associate professor at Kharkiv Karazin National University. He has been a pioneer in the study of the brightness-phase curve of Saturn's rings and is author of many astronomical textbooks. His lectures have had a big impact among students of astronomy in Ukraine.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20090806/MPCPages.arcLast Updated: 2011-05-09

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
FirstGov 2016-May-04 06:02 UT
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