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180209 (2003 SF312)
Classification: Main-belt Asteroid          SPK-ID: 2180209
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1090840698191837 3.7886e-08  
a 2.19435373582266 9.6757e-09 au
q 1.954984699696194 8.4332e-08 au
i 4.527839040318304 5.079e-06 deg
node 34.65196960610204 5.0789e-05 deg
peri 35.66646244084789 5.6581e-05 deg
M 57.98336116751708 2.5432e-05 deg
tp 2459009.268570960387
(2020-Jun-08.76857096)
8.3371e-05 TDB
period 1187.294304229255
3.25
7.8528e-06
2.15e-08
d
yr
n .3032104160844079 2.0054e-09 deg/d
Q 2.433722771949125 1.0731e-08 au
  Orbit Determination Parameters
   # obs. used (total)      307  
   data-arc span      7420 days (20.31 yr)  
   first obs. used      2000-11-20  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56819  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:25:35  

Additional Information
 Earth MOID = .970492 au 
 Jupiter MOID = 2.79174 au 
 T_jup = 3.658 
[ 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 17.4   n/a MPO440013  

180209 (2003 SF312)          Discovered 2003-Sep-30 by Spacewatch at Kitt Peak
Reference: 20080321/Numbers.arcLast Updated: 2008-03-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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