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266755 (2009 SK84)
Classification: Main-belt Asteroid          SPK-ID: 2266755
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1563252128456783 4.5955e-08  
a 3.129341186536268 3.1146e-08 au
q 2.640146259484239 1.4417e-07 au
i 1.996073529993122 6.3104e-06 deg
node 141.7247263459124 0.0001615 deg
peri 159.2913616163393 0.00016355 deg
M 50.923359391397 2.3064e-05 deg
tp 2458914.482671168187
(2020-Mar-05.98267117)
0.00013076 TDB
period 2021.984401854839
5.54
3.0187e-05
8.265e-08
d
yr
n .1780429164882573 2.658e-09 deg/d
Q 3.618536113588297 3.6015e-08 au
  Orbit Determination Parameters
   # obs. used (total)      234  
   data-arc span      8073 days (22.10 yr)  
   first obs. used      1998-09-13  
   last obs. used      2020-10-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55727  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 03:17:07  

Additional Information
 Earth MOID = 1.62276 au 
 Jupiter MOID = 1.60911 au 
 T_jup = 3.194 
[ 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 16.37   n/a E2021B55  

266755 (2009 SK84)          Discovered 2005-Dec-25 by Spacewatch at Kitt Peak
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

[ show close-approach data ]
Alternate Designations
 2009 SK84 = 2005 YZ105 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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