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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer 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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1631905380888601 1.3296e-08  
a 2.234188392276975 4.2592e-09 au
q 1.869589986349411 2.9711e-08 au
i 6.460381085652807 2.5339e-07 deg
node 4.328034333634945 4.904e-06 deg
peri 256.4536110675371 5.6151e-06 deg
M 140.6549774599334 2.5072e-06 deg
tp 2458723.925590722255
(2019-Aug-28.42559072)
8.0122e-06 TDB
period 1219.770465562515
3.34
3.488e-06
9.55e-09
d
yr
n .295137495261439 8.4397e-10 deg/d
Q 2.59878679820454 4.9543e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3183  
   data-arc span      32960 days (90.24 yr)  
   first obs. used      1930-12-13  
   last obs. used      2021-03-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .40628  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 12:42:49  

Additional Information
 Earth MOID = .865832 au 
 Jupiter MOID = 2.48921 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 12.27   n/a E2021B10  
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. 2020-October); 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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