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79921 (1999 CK31)
Classification: Main-belt Asteroid          SPK-ID: 2079921
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1956220201487481 3.6687e-08  
a 2.736235349850411 1.2067e-08 au
q 2.200967463110257 1.0512e-07 au
i 4.669258301783042 4.0353e-06 deg
node 84.70370143647008 5.4412e-05 deg
peri 15.4291362773324 5.5844e-05 deg
M 6.880642209422331 1.217e-05 deg
tp 2459364.902328815418
(2021-May-30.40232882)
5.5821e-05 TDB
period 1653.212197383587
4.53
1.0937e-05
2.994e-08
d
yr
n .2177578901061488 1.4405e-09 deg/d
Q 3.271503236590565 1.4428e-08 au
  Orbit Determination Parameters
   # obs. used (total)      883  
   data-arc span      9947 days (27.23 yr)  
   first obs. used      1994-01-09  
   last obs. used      2021-04-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49092  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 23:09:55  

Additional Information
 Earth MOID = 1.21844 au 
 Jupiter MOID = 1.90053 au 
 T_jup = 3.319 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.45   n/a E2021B10  

79921 (1999 CK31)          Discovered 1999-Feb-10 by LINEAR at Socorro
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

[ show close-approach data ]
Alternate Designations
 1999 CK31 = 2002 TU258 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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