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2420 Ciurlionis (1975 TN)
Classification: Main-belt Asteroid          SPK-ID: 2002420
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1336141444737177 9.0617e-08  
a 2.559550618050565 1.6052e-08 AU
q 2.217558451982564 2.3226e-07 AU
i 14.61125371870103 9.3699e-06 deg
node 205.6491696602081 2.1935e-05 deg
peri 198.0160303313541 3.5247e-05 deg
M 175.536200375536 2.465e-05 deg
tp 2456271.196658289137
(2012-Dec-09.69665829)
0.00010222 JED
period 1495.698337176161
4.09
1.407e-05
3.852e-08
d
yr
n .2406902455208118 2.2642e-09 deg/d
Q 2.901542784118567 1.8197e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      923  
   data-arc span      14139 days (38.71 yr)  
   first obs. used      1975-10-03  
   last obs. used      2014-06-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .48958  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-07 23:57:03  

Additional Information
 Earth MOID = 1.22865 AU 
 T_jup = 3.378 
[ 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 12.2 mag n/a MPO298976  
rotation period rot_per 12.84 h n/a Asteroid Lightcurve DataBase (Rev. 2014-Mar-01) Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Durkee, R.I.; Syring, C.W. (2013) Minor Planet Bul. 40, 88.]

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 | Physical Parameters | Discovery Circumstances ]
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