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180208 (2003 SD311)
Classification: Main-belt Asteroid          SPK-ID: 2180208
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 .08704595078670747 4.0205e-08  
a 2.186401069961562 1.1579e-08 au
q 1.996083710025684 8.7478e-08 au
i 5.29434327947742 6.3986e-06 deg
node 9.235162662924294 4.453e-05 deg
peri 107.6087906759876 5.8129e-05 deg
M 17.30682145106894 3.7509e-05 deg
tp 2459143.731425861194
(2020-Oct-21.23142586)
0.00012302 TDB
period 1180.845757711798
3.23
9.3807e-06
2.568e-08
d
yr
n .3048662347719278 2.4219e-09 deg/d
Q 2.376718429897441 1.2587e-08 au
  Orbit Determination Parameters
   # obs. used (total)      293  
   data-arc span      7437 days (20.36 yr)  
   first obs. used      2000-11-03  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54917  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:25:35  

Additional Information
 Earth MOID = 1.01947 au 
 Jupiter MOID = 2.67301 au 
 T_jup = 3.666 
[ 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 17.2   n/a MPO440013  

180208 (2003 SD311)          Discovered 2003-Sep-29 by LINEAR at Socorro
Reference: 20080321/Numbers.arcLast Updated: 2008-03-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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