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20141 Markidger (1996 RL5)
Classification: Main-belt Asteroid          SPK-ID: 2020141
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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Orbit Diagram
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Note: This Java-based orbit viewer will eventually be retired.

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 two-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.

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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .179043971526966 4.226e-08  
a 2.258793037147456 7.0137e-09 au
q 1.854369760919118 9.5013e-08 au
i 7.121938262664457 4.6899e-06 deg
node 342.307321839018 3.1349e-05 deg
peri 42.30830631397005 3.3459e-05 deg
M 325.2200986192009 1.1583e-05 deg
tp 2459120.295066464061
4.0048e-05 TDB
period 1239.975451766829
n .2903283282641117 1.3522e-09 deg/d
Q 2.663216313375794 8.2695e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1583  
   data-arc span      18079 days (49.50 yr)  
   first obs. used      1971-03-24  
   last obs. used      2020-09-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46564  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-22 16:52:22  

Additional Information
 Earth MOID = .864145 au 
 Jupiter MOID = 2.82231 au 
 T_jup = 3.590 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.8   n/a MPO435886  
diameter diameter 3.378 km 0.895 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
geometric albedo albedo 0.224   0.147 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

20141 Markidger           Discovered 1996 Sept. 13 by M. Blasco at Observatorio Astronomico de Mallorca.
Mark Richard Kidger (b. 1960) is a British-born astrophysicist of the Instituto de Astrofisica de Canarias, known for his contribution to Spanish astronomy with his dedication to the study of the nature of comets, meteors and minor planets, and for the support and friendship that connect him with the Observatorio de Mallorca.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020328/MPCPages.arcLast Updated: 2003-10-02

Alternate Designations
 1996 RL5 = 1062 T-1 = 1998 FL37 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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