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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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2212663450571431 6.9793e-08  
a 2.538365409683945 2.0176e-08 AU
q 1.976710573063701 1.7978e-07 AU
i 11.24102142268434 6.4465e-06 deg
node 142.835032093961 3.3605e-05 deg
peri 207.9467916994517 3.6205e-05 deg
M 296.2147813285364 1.9044e-05 deg
tp 2457262.226191948386
(2015-Aug-27.72619195)
7.9809e-05 JED
period 1477.167140975436
4.04
1.7612e-05
4.822e-08
d
yr
n .2437097265528644 2.9057e-09 deg/d
Q 3.100020246304189 2.464e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1149  
   data-arc span      9134 days (25.01 yr)  
   first obs. used      1990-05-19  
   last obs. used      2015-05-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50955  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 16:03:14  

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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