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78431 Kemble (2002 QJ50)
Classification: Main-belt Asteroid          SPK-ID: 2078431
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 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1507786123439094 4.1659e-08  
a 2.444059253349049 1.2032e-08 au
q 2.075547390642788 1.0479e-07 au
i 2.995065490405254 4.3709e-06 deg
node 226.7540484974436 9.7895e-05 deg
peri 356.7174953879841 9.9341e-05 deg
M 70.29856936263994 1.9142e-05 deg
tp 2459123.972702912461
(2020-Oct-01.47270291)
7.3467e-05 TDB
period 1395.616267031094
3.82
1.0306e-05
2.822e-08
d
yr
n .2579505617011982 1.9048e-09 deg/d
Q 2.81257111605531 1.3846e-08 au
  Orbit Determination Parameters
   # obs. used (total)      388  
   data-arc span      10834 days (29.66 yr)  
   first obs. used      1991-10-13  
   last obs. used      2021-06-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .59768  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 14:35:22  

Additional Information
 Earth MOID = 1.06721 au 
 Jupiter MOID = 2.16508 au 
 T_jup = 3.482 
[ 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 16.74   n/a E2021B10  

78431 Kemble           Discovered 2002 Aug. 16 by A. Lowe on images taken at Palomar.
Lucian J. Kemble (1922-1999) was a Franciscan Father ordained in 1953. Multi-talented, he was an avid amateur astronomer with a particular interest in deep-sky observing. In 1980, he drew attention to a chain of stars in the constellation of Camelopardalis that is now known as Kemble's Cascade.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20050919/MPCPages.arcLast Updated: 2005-09-26

Alternate Designations
 2002 QJ50 = 1999 YC2 = 2001 EY26 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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