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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1770527615457334 5.9873e-08  
a 2.656900421679726 3.3682e-08 au
q 2.186488864869307 1.6958e-07 au
i 3.243395401909963 8.2233e-06 deg
node 205.9161933144521 9.7032e-05 deg
peri 251.3460738739143 0.00010289 deg
M 279.3040222717146 4.0033e-05 deg
tp 2459555.077138338277
(2021-Dec-06.57713834)
0.00018145 TDB
period 1581.835593238458
4.33
3.0079e-05
8.235e-08
d
yr
n .2275837018327421 4.3276e-09 deg/d
Q 3.127311978490145 3.9645e-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.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51847  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 08:33:20  

Additional Information
 Earth MOID = 1.20567 au 
 Jupiter MOID = 2.05857 au 
 T_jup = 3.363 
[ 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 17.08   n/a E2021B25  

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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