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181220 (2005 SB263)
Classification: Main-belt Asteroid          SPK-ID: 2181220
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01404183753716363 3.4939e-08  
a 2.874741303686245 1.9566e-08 au
q 2.834374653338509 1.0365e-07 au
i 3.045974825297339 3.7552e-06 deg
node 114.3904783032449 7.3314e-05 deg
peri 85.27579974805437 0.00017559 deg
M 219.2337161912031 0.00016254 deg
tp 2459896.633806353807
(2022-Nov-13.13380635)
0.00080674 TDB
period 1780.313889850016
4.87
1.8176e-05
4.976e-08
d
yr
n .2022115325013436 2.0644e-09 deg/d
Q 2.915107954033981 1.9841e-08 au
  Orbit Determination Parameters
   # obs. used (total)      512  
   data-arc span      8323 days (22.79 yr)  
   first obs. used      1998-03-02  
   last obs. used      2020-12-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53014  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:29:42  

Additional Information
 Earth MOID = 1.83006 au 
 Jupiter MOID = 2.04185 au 
 T_jup = 3.294 
[ 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 15.88   n/a E2021B55  

181220 (2005 SB263)          Discovered 2005-Sep-23 by Spacewatch at Kitt Peak
Reference: 20080321/Numbers.arcLast Updated: 2008-03-26

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