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233117 (2005 SQ257)
Classification: Main-belt Asteroid          SPK-ID: 2233117
[ 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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2403639455579725 7.7201e-08  
a 2.341084170155439 1.2703e-08 au
q 1.778371942133566 1.8866e-07 au
i 4.245237959411844 4.0378e-06 deg
node 238.9626236327781 6.5757e-05 deg
peri 135.329159457738 6.7093e-05 deg
M 40.65895030244122 1.3998e-05 deg
tp 2458852.732940586626
(2020-Jan-04.23294059)		 5.0028e-05 TDB
period 1308.350092491703
3.58		 1.0649e-05
2.916e-08		 d
yr
n .2751557110485571 2.2396e-09 deg/d
Q 2.903796398177313 1.5757e-08 au
   Orbit Determination Parameters
   # obs. used (total)      451  
   data-arc span      7710 days (21.11 yr)  
   first obs. used      1998-12-15  
   last obs. used      2020-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51757  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 07:16:36  

Additional Information
 Earth MOID = .782576 au 
 Jupiter MOID = 2.57549 au 
 T_jup = 3.521 
[ 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 16.5   n/a MPO494286  

233117 (2005 SQ257)          Discovered 2005-Sep-18 by NEAT at Palomar
Reference: 20100228/Numbers.arcLast Updated: 2010-03-03

[ show close-approach data ]
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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