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181218 (2005 SE255)
Classification: Main-belt Asteroid          SPK-ID: 2181218
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04468638680560742 5.6074e-08  
a 3.01402046274906 3.1e-08 au
q 2.87933477851064 1.7803e-07 au
i 8.638307764045862 5.791e-06 deg
node 193.4556146815891 3.0639e-05 deg
peri 143.3797215798247 6.7326e-05 deg
M 346.5333018634387 6.2592e-05 deg
tp 2459271.995111224649
(2021-Feb-26.49511122)
0.00033296 TDB
period 1911.250982228204
5.23
2.9486e-05
8.073e-08
d
yr
n .1883583073847785 2.906e-09 deg/d
Q 3.148706146987481 3.2385e-08 au
  Orbit Determination Parameters
   # obs. used (total)      349  
   data-arc span      8979 days (24.58 yr)  
   first obs. used      1995-11-15  
   last obs. used      2020-06-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50575  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:29:41  

Additional Information
 Earth MOID = 1.87465 au 
 Jupiter MOID = 2.03514 au 
 T_jup = 3.230 
[ 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 15.58   n/a E2021B55  

181218 (2005 SE255)          Discovered 2005-Sep-22 by NEAT at Palomar
Reference: 20080321/Numbers.arcLast Updated: 2008-03-26

[ show close-approach data ]
Alternate Designations
 2005 SE255 = 1995 VR13 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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