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216398 (2008 EP22)
Classification: Main-belt Asteroid          SPK-ID: 2216398
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06394260097368905 3.7002e-08  
a 2.984221111944968 2.8292e-08 au
q 2.793402252166612 1.1189e-07 au
i 10.38064237444714 4.6102e-06 deg
node 50.03744253422515 2.2019e-05 deg
peri 235.8135329596416 4.7847e-05 deg
M 43.34762499071159 3.9581e-05 deg
tp 2458973.770656064257
(2020-May-04.27065606)
0.00020833 TDB
period 1882.976606777355
5.16
2.6777e-05
7.331e-08
d
yr
n .1911866555878922 2.7188e-09 deg/d
Q 3.175039971723323 3.0101e-08 au
  Orbit Determination Parameters
   # obs. used (total)      491  
   data-arc span      7195 days (19.70 yr)  
   first obs. used      2000-12-04  
   last obs. used      2020-08-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56217  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:54:39  

Additional Information
 Earth MOID = 1.79103 au 
 Jupiter MOID = 1.91824 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 15.11   n/a E2021B55  

216398 (2008 EP22)          Discovered 2008-Mar-03 by CSS at Catalina
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08

[ show close-approach data ]
Alternate Designations
 2008 EP22 = 2003 FJ20 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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