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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.


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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1633525428621509 3.1858e-08  
a 2.234348185223322 5.2335e-09 au
q 1.86936172752766 7.2396e-08 au
i 6.460553939247628 3.9934e-06 deg
node 4.354212922721141 2.9996e-05 deg
peri 256.5691078105096 3.2555e-05 deg
M 323.4539285148458 1.2216e-05 deg
tp 2458724.340558714797
(2019-Aug-28.84055871)
4.1428e-05 TDB
period 1219.901327983704
3.34
4.2861e-06
1.173e-08
d
yr
n .2951058349899665 1.0368e-09 deg/d
Q 2.599334642918984 6.0885e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2491  
   data-arc span      32388 days (88.67 yr)  
   first obs. used      1930-12-13  
   last obs. used      2019-08-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43573  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-23 19:19:00  

Additional Information
 Earth MOID = .866922 au 
 Jupiter MOID = 2.49013 au 
 T_jup = 3.614 
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Orbital Elements at Epoch 2455965.5 (2012-Feb-08.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1640052460501304 3.1913e-08  
q 1.867564112358243 7.2556e-08 au
tp 2456284.200275846172
(2012-Dec-22.70027585)
4.1265e-05 TDB
node 4.415361066555813 3.0014e-05 deg
peri 256.4990171174463 3.2537e-05 deg
i 6.45978152263876 3.9922e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2491  
   data-arc span      32388 days (88.67 yr)  
   first obs. used      1930-12-13  
   last obs. used      2019-08-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43573  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-23 19:19:00  

Additional Information
 Jupiter MOID = 2.49013 au 
 T_jup = 3.614 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.018447588116999E-15 -2.311487960125356E-15 -1.548061043027937E-13 6.033922286702713E-15 -2.86810072249203E-14 -7.191517510992812E-16
q -2.311487960125356E-15 5.264411065081272E-15 3.229489961987482E-13 -1.423436087762346E-14 5.570420815701102E-14 1.810796807791884E-15
tp -1.548061043027937E-13 3.229489961987482E-13 1.702773354385846E-9 -7.941073275727032E-12 5.265253150041748E-10 1.415394175466572E-12
node 6.033922286702713E-15 -1.423436087762346E-14 -7.941073275727032E-12 9.008593352238848E-10 -8.968202404375935E-10 5.314878371818284E-12
peri -2.86810072249203E-14 5.570420815701102E-14 5.265253150041748E-10 -8.968202404375935E-10 1.058671458351844E-9 -4.906958120768664E-12
i -7.191517510992812E-16 1.810796807791884E-15 1.415394175466572E-12 5.314878371818284E-12 -4.906958120768664E-12 1.5937935856912E-11

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-January); 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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