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213661 (2002 SL8)
Classification: Inner Main-belt Asteroid          SPK-ID: 2213661
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03934910254753801 7.9414e-08  
a 1.872373552815594 8.5058e-09 au
q 1.798697333878555 1.5361e-07 au
i 23.29666390621892 7.0622e-06 deg
node 188.6772342744743 9.2403e-06 deg
peri 24.25297050352657 7.1371e-05 deg
M 195.5323950700571 7.5701e-05 deg
tp 2459628.028470694266
(2022-Feb-17.52847069)
0.00019869 TDB
period 935.8089060486751
2.56
6.3768e-06
1.746e-08
d
yr
n .3846939238055028 2.6214e-09 deg/d
Q 1.946049771752633 8.8405e-09 au
  Orbit Determination Parameters
   # obs. used (total)      303  
   data-arc span      6679 days (18.29 yr)  
   first obs. used      2002-09-27  
   last obs. used      2021-01-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56439  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:43:35  

Additional Information
 Earth MOID = .803036 au 
 Jupiter MOID = 3.01219 au 
 T_jup = 3.880 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.57   n/a MPCxxxxx  

213661 (2002 SL8)          Discovered 2002-Sep-27 by NEAT at Palomar
Reference: 20090509/Numbers.arcLast Updated: 2009-05-11

Alternate Designations
 2002 SL8 = 2004 HC57 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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