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344689 (2003 SU311)
Classification: Main-belt Asteroid          SPK-ID: 2344689
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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1767432981677863 5.992e-08  
a 2.658449368984857 3.3864e-08 au
q 2.188586259498403 1.6991e-07 au
i 3.242216756687547 8.2198e-06 deg
node 205.9446193707562 9.7067e-05 deg
peri 251.1407912108141 0.00010294 deg
M 233.9787637010288 3.937e-05 deg
tp 2459554.720074155001
(2021-Dec-06.22007415)
0.00018176 TDB
period 1583.219087158164
4.33
3.0251e-05
8.282e-08
d
yr
n .2273848281138338 4.3447e-09 deg/d
Q 3.128312478471311 3.9849e-08 au
  Orbit Determination Parameters
   # obs. used (total)      152  
   data-arc span      10425 days (28.54 yr)  
   first obs. used      1992-03-02  
   last obs. used      2020-09-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51852  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 17:02:02  

Additional Information
 Earth MOID = 1.20796 au 
 Jupiter MOID = 2.05827 au 
 T_jup = 3.362 
[ 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 16.9   n/a MPO437460  

344689 (2003 SU311)          Discovered 2003-Sep-29 by Spacewatch at Kitt Peak
Reference: 20121128/Numbers.arcLast Updated: 2012-12-03

[ show close-approach data ]
Alternate Designations
 2003 SU311 = 2005 EF288 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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