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190855 (2001 SA204)
Classification: Main-belt Asteroid          SPK-ID: 2190855
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 .1772632749359863 6.3561e-08  
a 2.315585468534992 1.3836e-08 au
q 1.905117204988299 1.4611e-07 au
i 3.192652305236225 7.3289e-06 deg
node 133.9971899061696 9.4251e-05 deg
peri 238.0071887002411 9.6036e-05 deg
M 155.7309303372331 1.7806e-05 deg
tp 2458643.747690267472
(2019-Jun-09.24769027)
6.2272e-05 TDB
period 1287.032903930388
3.52
1.1535e-05
3.158e-08
d
yr
n .2797131284682923 2.507e-09 deg/d
Q 2.726053732081685 1.6288e-08 au
  Orbit Determination Parameters
   # obs. used (total)      224  
   data-arc span      6712 days (18.38 yr)  
   first obs. used      2001-09-12  
   last obs. used      2020-01-28  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56808  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 22:09:23  

Additional Information
 Earth MOID = .905874 au 
 Jupiter MOID = 2.73956 au 
 T_jup = 3.558 
[ 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 17.1   n/a MPO454319  

190855 (2001 SA204)          Discovered 2001-Sep-19 by LINEAR at Socorro
Reference: 20080917/Numbers.arcLast Updated: 2008-09-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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