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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 ]

[ show orbit diagram ]
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
(2021-Feb-20.20125175)
6.2373e-05 TDB
period 1496.876060363909
4.10
9.9119e-06
2.714e-08
d
yr
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] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
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] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

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 ]
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