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74061 (1998 KK28)
Classification: Main-belt Asteroid          SPK-ID: 2074061
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09969927741549631 4.2131e-08  
a 2.253282770049245 9.5531e-09 au
q 2.028632106062547 9.3518e-08 au
i 8.109324927973649 5.26e-06 deg
node 66.21489563053622 4.0868e-05 deg
peri 193.0760218047114 5.2718e-05 deg
M 166.0969145361872 3.4387e-05 deg
tp 2458430.491889994206
(2018-Nov-07.99188999)
0.0001175 TDB
period 1235.440888080909
3.38
7.8567e-06
2.151e-08
d
yr
n .2913939497009943 1.8531e-09 deg/d
Q 2.477933434035942 1.0505e-08 au
  Orbit Determination Parameters
   # obs. used (total)      665  
   data-arc span      7919 days (21.68 yr)  
   first obs. used      1998-05-22  
   last obs. used      2020-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61186  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 17:10:33  

Additional Information
 Earth MOID = 1.01446 au 
 Jupiter MOID = 2.5581 au 
 T_jup = 3.606 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.0   n/a MPO449467  

74061 (1998 KK28)          Discovered 1998-May-22 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 KK28 = 2001 ER2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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