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109983 (2001 SY55)
Classification: Main-belt Asteroid          SPK-ID: 2109983
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1849736929972063 7.8358e-08  
a 2.630006693050998 1.0161e-08 au
q 2.143524642429985 2.059e-07 au
i 14.17264247924078 5.769e-06 deg
node 42.55989001000209 1.9694e-05 deg
peri 328.4834638240479 2.2584e-05 deg
M 145.1153192994987 1.042e-05 deg
tp 2458372.521943457698
(2018-Sep-11.02194346)
4.415e-05 TDB
period 1557.878943770547
4.27
9.0281e-06
2.472e-08
d
yr
n .2310834236764823 1.3392e-09 deg/d
Q 3.116488743672011 1.204e-08 au
  Orbit Determination Parameters
   # obs. used (total)      908  
   data-arc span      6827 days (18.69 yr)  
   first obs. used      2001-08-20  
   last obs. used      2020-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54636  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 19:11:11  

Additional Information
 Earth MOID = 1.15788 au 
 Jupiter MOID = 2.36955 au 
 T_jup = 3.333 
[ 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 14.8   n/a MPO459516  

109983 (2001 SY55)          Discovered 2001-Sep-16 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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