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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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2212663575931022 7.0488e-08  
a 2.538365418274033 2.1343e-08 AU
q 1.976710547932247 1.8086e-07 AU
i 11.24102176297339 6.468e-06 deg
node 142.8350354122474 3.413e-05 deg
peri 207.9467943573227 3.6945e-05 deg
M 296.2147707475397 2.0866e-05 deg
tp 2457262.226236693339
(2015-Aug-27.72623669)
8.7583e-05 JED
period 1477.167148473763
4.04
1.863e-05
5.101e-08
d
yr
n .2437097253157564 3.0737e-09 deg/d
Q 3.10002028861582 2.6066e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1134  
   data-arc span      8809 days (24.12 yr)  
   first obs. used      1990-05-19  
   last obs. used      2014-07-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51125  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 12:20:21  

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 (413)
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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