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8842 (1990 KF)
Classification: Main-belt Asteroid          SPK-ID: 2008842
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2211169346913317 6.8046e-08  
a 2.537947322585829 1.4403e-08 au
q 1.976764190207578 1.7467e-07 au
i 11.24113906154251 5.9446e-06 deg
node 142.8323132597999 3.0822e-05 deg
peri 207.8747761104196 3.2762e-05 deg
M 82.50836739338479 1.1544e-05 deg
tp 2457262.031836195569
(2015-Aug-27.53183620)
4.7328e-05 JED
period 1476.802205873781
4.04
1.2572e-05
3.442e-08
d
yr
n .243769950077369 2.0751e-09 deg/d
Q 3.09913045496408 1.7588e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1356  
   data-arc span      9417 days (25.78 yr)  
   first obs. used      1990-05-19  
   last obs. used      2016-02-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50217  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Mar-24 16:01:29  

Additional Information
 Earth MOID = .97599 au 
 Jupiter MOID = 2.32627 au 
 T_jup = 3.386 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.3 mag n/a MPO347595  

8842 (1990 KF)          Discovered 1990-May-20 by McNaught, R. H. at Siding Spring
Reference: 19980610/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1990 KF = 1995 WM42 = 1996 CF = 1997 AT22 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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