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JPL Small-Body Database Browser
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2420 Ciurlionis (1975 TN)
Classification: Main-belt Asteroid          SPK-ID: 2002420
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.

Note: If the applet is not working, here are some notes that might help.
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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1315472230529904 4.7306e-08  
a 2.560894046992889 1.1305e-08 au
q 2.22401554657804 1.2368e-07 au
i 14.59169084023214 4.9316e-06 deg
node 205.5296770715504 1.4028e-05 deg
peri 198.4441952987393 1.9326e-05 deg
M 296.2188673067856 1.4801e-05 deg
tp 2459265.701251753796
6.2373e-05 TDB
period 1496.876060363909
n .2405008734741069 1.5925e-09 deg/d
Q 2.897772547407738 1.2792e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1966  
   data-arc span      16072 days (44.00 yr)  
   first obs. used      1975-10-03  
   last obs. used      2019-10-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43004  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 16:21:10  

Additional Information
 Earth MOID = 1.23561 au 
 Jupiter MOID = 2.53449 au 
 T_jup = 3.378 
[ 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 12.3   n/a MPO395016  
diameter diameter 8.444 km 0.198 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
rotation period rot_per 15.760 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Foylan, M.; Durkee, R.I. (2017) Minor Planet Bull. 44, 91-92.]
geometric albedo albedo 0.327   0.086 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

2420 Ciurlionis (1975 TN)          Discovered 1975-Oct-03 by Chernykh, N. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1975 TN = 1979 QF 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
FirstGov 2020-Jun-01 22:31 UT
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