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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 44 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1630145649563606 1.3291e-08  
a 2.234534896312622 4.2579e-09 au
q 1.870273162310414 2.9703e-08 au
i 6.460185269801702 2.5339e-07 deg
node 4.323650393465441 4.9037e-06 deg
peri 256.4700320746936 5.615e-06 deg
M 198.4821613103663 2.5837e-06 deg
tp 2459943.890344670693
(2022-Dec-30.39034467)
9.5999e-06 TDB
period 1220.054240944328
3.34
3.4872e-06
9.547e-09
d
yr
n .2950688485139466 8.4337e-10 deg/d
Q 2.59879663031483 4.952e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3245  
   data-arc span      33006 days (90.37 yr)  
   first obs. used      1930-12-13  
   last obs. used      2021-04-25  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .40468  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 12:35:23  

Additional Information
 Earth MOID = .868208 au 
 Jupiter MOID = 2.48799 au 
 T_jup = 3.614 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457040.5 (2015-Jan-18.0) TDB
Reference: JPL 44 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1633359249920022 1.3305e-08  
q 1.86983154167567 2.9749e-08 au
tp 2457503.639169718945
(2016-Apr-25.13916972)
7.7865e-06 TDB
node 4.38486781574264 4.9061e-06 deg
peri 256.3600425955798 5.6112e-06 deg
i 6.459086168060075 2.5324e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      3245  
   data-arc span      33006 days (90.37 yr)  
   first obs. used      1930-12-13  
   last obs. used      2021-04-25  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .40468  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 12:35:23  

Additional Information
 Jupiter MOID = 2.48799 au 
 T_jup = 3.614 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.770332606294993E-16 -3.929526078606444E-16 5.951317617786053E-14 -1.685494316271633E-14 4.053627967359293E-14 5.89942873686781E-16
q -3.929526078606444E-16 8.849918177189052E-16 -1.374852632068E-13 3.75114977981292E-14 -9.239522646484127E-14 -1.306596222535912E-15
tp 5.951317617786053E-14 -1.374852632068E-13 6.062974227237544E-11 -7.508019316415654E-13 2.103903469979626E-11 2.299954725159013E-13
node -1.685494316271633E-14 3.75114977981292E-14 -7.508019316415654E-13 2.406968511080362E-11 -2.415504922925829E-11 -4.814756527854787E-13
peri 4.053627967359293E-14 -9.239522646484127E-14 2.103903469979626E-11 -2.415504922925829E-11 3.148507071306644E-11 5.82413277603769E-13
i 5.89942873686781E-16 -1.306596222535912E-15 2.299954725159013E-13 -4.814756527854787E-13 5.82413277603769E-13 6.413080908529482E-14

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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