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JPL Small-Body Database Browser
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5243 Clasien (1246 T-2)
Classification: Main-belt Asteroid          SPK-ID: 2005243
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1795811309837968 2.8904e-08  
a 2.774458738612343 1.1246e-08 au
q 2.27621830046446 7.9403e-08 au
i 7.486998830632201 4.994e-06 deg
node 194.4250463520396 2.86e-05 deg
peri 60.91514549157867 3.2229e-05 deg
M 33.50815079611568 1.4815e-05 deg
tp 2458443.386395265772
(2018-Nov-20.88639527)
6.9352e-05 TDB
period 1687.974309548553
4.62
1.0263e-05
2.81e-08
d
yr
n .2132733880862687 1.2967e-09 deg/d
Q 3.272699176760227 1.3265e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2161  
   data-arc span      24342 days (66.64 yr)  
   first obs. used      1953-04-15  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47657  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 21:56:24  

Additional Information
 Earth MOID = 1.27306 au 
 Jupiter MOID = 1.80535 au 
 T_jup = 3.300 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.2   n/a MPO452240  
diameter diameter 13.947 km 0.112 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.046   0.002 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
SMASSII spectral type spec_B C   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

5243 Clasien (1246 T-2)          Discovered 1973-Sep-29 by van Houten and Gehrels at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1246 T-2 = 1972 HY = 1981 GT 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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