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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2213122093334058 7.05e-08  
a 2.537982385509185 2.1327e-08 AU
q 1.976295896522879 1.8086e-07 AU
i 11.24098108298249 6.4681e-06 deg
node 142.8384751658959 3.4133e-05 deg
peri 207.9825406752081 3.6946e-05 deg
M 247.4293365766911 2.0512e-05 deg
tp 2457262.300136644369
(2015-Aug-27.80013664)
8.7553e-05 JED
period 1476.832810044092
4.04
1.8615e-05
5.097e-08
d
yr
n .2437648984716503 3.0725e-09 deg/d
Q 3.09966887449549 2.6046e-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 = .975195 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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