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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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2212663450017136 6.9673e-08  
a 2.538365409988871 1.9682e-08 AU
q 1.976710573441857 1.7964e-07 AU
i 11.24102141639147 6.4424e-06 deg
node 142.8350308149237 3.334e-05 deg
peri 207.9467931328807 3.5858e-05 deg
M 296.2147809875984 1.8302e-05 deg
tp 2457262.226193394497
(2015-Aug-27.72619339)
7.6636e-05 JED
period 1477.167141241607
4.04
1.718e-05
4.704e-08
d
yr
n .2437097265089502 2.8345e-09 deg/d
Q 3.100020246535884 2.4036e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1177  
   data-arc span      9172 days (25.11 yr)  
   first obs. used      1990-05-19  
   last obs. used      2015-06-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50641  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 12:00:29  

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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