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2685 Masursky (1981 JN)
Classification: Main-belt Asteroid          SPK-ID: 2002685
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 66 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1096289526185063 5e-08  
a 2.569243886913009 1.9034e-08 AU
q 2.287580370569235 1.2371e-07 AU
i 12.1261326605209 6.4988e-06 deg
node 215.3783205635281 2.5055e-05 deg
peri 288.0661243433298 3.9354e-05 deg
M 128.1751775345392 3.1763e-05 deg
tp 2456464.940346928060
0.00013224 JED
period 1504.202910535813
n .2393294132583244 2.6595e-09 deg/d
Q 2.850907403256782 2.112e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1050  
   data-arc span      14988 days (41.03 yr)  
   first obs. used      1973-08-28  
   last obs. used      2014-09-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50322  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 13:43:43  

Additional Information
 Earth MOID = 1.33187 AU 
 T_jup = 3.391 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.1 mag n/a MPO250227  

2685 Masursky (1981 JN)          Discovered 1981-May-03 by Bowell, E. at Flagstaff (AM)
Discovered at the Anderson Mesa station, which is operated by the Lowell Observatory.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1981 JN = 1950 VO = 1973 QF = 1975 XJ5 = 1977 KU 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
FirstGov 2015-Mar-31 09:44 UT
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