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6798 Couperin (1993 JK1)
Classification: Main-belt Asteroid          SPK-ID: 2006798
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1009425336731589 1.0654e-08  
a 2.938703028916948 1.0844e-08 au
q 2.642062899465084 3.0476e-08 au
i .9131166314153037 8.8962e-07 deg
node 305.9848178694673 5.8345e-05 deg
peri 82.23093302244494 5.9512e-05 deg
M 38.04175802341085 1.3097e-05 deg
tp 2459006.058010628715
(2020-Jun-05.55801063)
6.696e-05 TDB
period 1840.059971218606
5.04
1.0185e-05
2.789e-08
d
yr
n .19564579721909 1.0829e-09 deg/d
Q 3.235343158368811 1.1938e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3063  
   data-arc span      25616 days (70.13 yr)  
   first obs. used      1951-02-04  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4568  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 23:04:28  

Additional Information
 Earth MOID = 1.64569 au 
 Jupiter MOID = 2.19154 au 
 T_jup = 3.266 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457176.5 (2015-Jun-03.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1021542741237175 1.1113e-08  
q 2.638005950603548 3.1716e-08 au
tp 2457151.898840994571
(2015-May-09.39884099)
6.5852e-05 TDB
node 306.769798644304 5.8411e-05 deg
peri 79.00136337986854 5.9558e-05 deg
i .9130318110081725 8.8835e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      3063  
   data-arc span      25616 days (70.13 yr)  
   first obs. used      1951-02-04  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4568  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 23:04:28  

Additional Information
 Jupiter MOID = 2.19154 au 
 T_jup = 3.266 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.234933286353199E-16 -3.366800322054314E-16 -2.146318256430742E-13 -3.951921966983954E-14 -7.412023760072099E-15 -5.373721325777771E-15
q -3.366800322054314E-16 1.005900398421101E-15 5.547043090523992E-13 1.109523317918509E-13 1.033934088969755E-14 1.548905456139243E-14
tp -2.146318256430742E-13 5.547043090523992E-13 4.336450103727164E-9 2.523238190290317E-10 6.962808841919298E-10 2.98790336467615E-11
node -3.951921966983954E-14 1.109523317918509E-13 2.523238190290317E-10 3.411793313316812E-9 -3.37520943048249E-9 -3.440810881626706E-12
peri -7.412023760072099E-15 1.033934088969755E-14 6.962808841919298E-10 -3.37520943048249E-9 3.547134154361608E-9 9.630635537214752E-12
i -5.373721325777771E-15 1.548905456139243E-14 2.98790336467615E-11 -3.440810881626706E-12 9.630635537214752E-12 7.891594468163351E-13

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.73   n/a E2021B10  

6798 Couperin (1993 JK1)          Discovered 1993-May-14 by Elst, E. W. at La Silla
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1993 JK1 = 1974 SG = 1977 FC3 = 1989 TU7 = 1994 QG 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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