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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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1563252204275986 4.8435e-08  
a 3.129341189769041 3.1354e-08 au
q 2.640146238485232 1.5098e-07 au
i 1.996071870873873 6.6932e-06 deg
node 141.7247033767207 0.00016445 deg
peri 159.2913861153986 0.0001665 deg
M 50.92335743083758 2.3403e-05 deg
tp 2458914.482681736704
(2020-Mar-05.98268174)
0.00013257 TDB
period 2021.984404988062
5.54
3.0389e-05
8.32e-08
d
yr
n .1780429162123659 2.6758e-09 deg/d
Q 3.61853614105285 3.6256e-08 au
  Orbit Determination Parameters
   # obs. used (total)      227  
   data-arc span      8073 days (22.10 yr)  
   first obs. used      1998-09-13  
   last obs. used      2020-10-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56055  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 22:23:40  

Additional Information
 Earth MOID = 1.62276 au 
 Jupiter MOID = 1.60911 au 
 T_jup = 3.194 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457666.5 (2016-Oct-05.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1570947603246367 4.8558e-08  
q 2.637590770451358 1.5228e-07 au
tp 2456897.208404168254
(2014-Aug-27.70840417)
0.00014414 TDB
node 141.8029903432106 0.0001648 deg
peri 160.1802039404887 0.00016684 deg
i 1.99437760073404 6.6888e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      227  
   data-arc span      8073 days (22.10 yr)  
   first obs. used      1998-09-13  
   last obs. used      2020-10-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56055  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 22:23:40  

Additional Information
 Jupiter MOID = 1.60911 au 
 T_jup = 3.194 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.357870205900722E-15 -7.279677968324808E-15 2.965287503375877E-12 1.158159315447286E-14 5.603482828665311E-13 -1.10012948403344E-16
q -7.279677968324808E-15 2.318938175041486E-14 -1.121142994378111E-11 -3.812120392081392E-14 -2.055966683558321E-12 5.313912578605419E-16
tp 2.965287503375877E-12 -1.121142994378111E-11 2.077607127190697E-8 5.625696547871249E-11 3.784969990132839E-9 8.585678630001593E-13
node 1.158159315447286E-14 -3.812120392081392E-14 5.625696547871249E-11 2.71598886391688E-8 -2.713236023437001E-8 5.618840815420643E-10
peri 5.603482828665311E-13 -2.055966683558321E-12 3.784969990132839E-9 -2.713236023437001E-8 2.783485059207051E-8 -5.61365613342687E-10
i -1.10012948403344E-16 5.313912578605419E-16 8.585678630001593E-13 5.618840815420643E-10 -5.61365613342687E-10 4.473942289444256E-11

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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