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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2212663406322943 6.9595e-08  
a 2.538365392946653 1.696e-08 AU
q 1.976710571261691 1.7959e-07 AU
i 11.24102153481942 6.4398e-06 deg
node 142.835028529323 3.1907e-05 deg
peri 207.94678521181 3.4087e-05 deg
M 296.2148000263623 1.4494e-05 deg
tp 2457262.226112638054
(2015-Aug-27.72611264)
6.0218e-05 JED
period 1477.167126365378
4.04
1.4804e-05
4.053e-08
d
yr
n .2437097289632979 2.4425e-09 deg/d
Q 3.100020214631615 2.0713e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1202  
   data-arc span      9219 days (25.24 yr)  
   first obs. used      1990-05-19  
   last obs. used      2015-08-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50422  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 14:25:59  

Additional Information
 Earth MOID = .977245 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 13.2 mag n/a MPO263428  

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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