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26278 (1998 SK8)
Classification: Main-belt Asteroid          SPK-ID: 2026278
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1543114866495806 4.0987e-08  
a 2.744583772517958 1.4959e-08 au
q 2.321062970346397 1.1082e-07 au
i 12.87506289866057 5.5289e-06 deg
node 189.6305592408791 2.0888e-05 deg
peri 290.430849229715 2.7579e-05 deg
M 185.1973132404316 1.9613e-05 deg
tp 2459806.915313955386
(2022-Aug-15.41531396)
9.2681e-05 TDB
period 1660.784044030422
4.55
1.3578e-05
3.717e-08
d
yr
n .2167650883292118 1.7722e-09 deg/d
Q 3.168104574689518 1.7267e-08 au
  Orbit Determination Parameters
   # obs. used (total)      986  
   data-arc span      9770 days (26.75 yr)  
   first obs. used      1993-09-15  
   last obs. used      2020-06-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56157  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 19:27:06  

Additional Information
 Earth MOID = 1.37189 au 
 Jupiter MOID = 2.01494 au 
 T_jup = 3.295 
[ 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 14.5   n/a MPO302221  

26278 (1998 SK8)          Discovered 1998-Sep-20 by Spacewatch at Kitt Peak
Reference: 20010705/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 SK8 = 2000 AE242 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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