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1622 Chacornac (1952 EA)
Classification: Main-belt Asteroid          SPK-ID: 2001622
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 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1633144541339493 2.8869e-08  
a 2.234036706888075 4.6114e-09 au
q 1.869186221587444 6.4869e-08 au
i 6.460628302411857 3.8057e-06 deg
node 4.329199944502758 2.6346e-05 deg
peri 256.4413562087126 2.8629e-05 deg
M 81.62432080188826 1.1739e-05 deg
tp 2458723.964454048470
(2019-Aug-28.46445405)
3.9552e-05 TDB
period 1219.646247154411
3.34
3.7763e-06
1.034e-08
d
yr
n .2951675543953221 9.1391e-10 deg/d
Q 2.598887192188707 5.3645e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2875  
   data-arc span      32829 days (89.88 yr)  
   first obs. used      1930-12-13  
   last obs. used      2020-10-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41333  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:17:08  

Additional Information
 Earth MOID = .86707 au 
 Jupiter MOID = 2.49017 au 
 T_jup = 3.614 
[ 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 12.2   n/a MPO337259  
diameter diameter 8.426 km 0.319 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 12.206 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Higgins, D.; Warner, B.D. (2009) Minor Planet Bull. 36, 159-160.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.360   0.042 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

1622 Chacornac (1952 EA)          Discovered 1952-Mar-15 by Schmitt, A. at Uccle
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1952 EA = 1932 DD = 1933 UX = 1939 KE = 1942 EB1 = 1949 KF = 1952 DP2 = 1953 TM1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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