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JPL Small-Body Database Browser
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347946 (2003 HE26)
Classification: Main-belt Asteroid          SPK-ID: 2347946
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09308480199995796 6.0423e-08  
a 3.098509807448339 3.5116e-08 au
q 2.810085635527082 1.8626e-07 au
i 2.663971521969055 6.0455e-06 deg
node 333.64741493944 0.00013255 deg
peri 190.69979463213 0.00013678 deg
M 86.34426916112285 3.4395e-05 deg
tp 2458522.686125209182
(2019-Feb-08.18612521)
0.00018776 TDB
period 1992.176164045231
5.45
3.3866e-05
9.272e-08
d
yr
n .1807069106122617 3.0719e-09 deg/d
Q 3.386933979369595 3.8384e-08 au
  Orbit Determination Parameters
   # obs. used (total)      250  
   data-arc span      5877 days (16.09 yr)  
   first obs. used      2003-04-25  
   last obs. used      2019-05-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .66775  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 06:34:01  

Additional Information
 Earth MOID = 1.81768 au 
 Jupiter MOID = 1.59241 au 
 T_jup = 3.214 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456903.5 (2014-Sep-03.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09338176683368227 6.0325e-08  
q 2.806976997599119 1.8651e-07 au
tp 2456525.155855305514
(2013-Aug-20.65585531)
0.00018005 TDB
node 333.7147821777324 0.00013258 deg
peri 189.3078975306909 0.0001368 deg
i 2.66449521009112 6.0461e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      250  
   data-arc span      5877 days (16.09 yr)  
   first obs. used      2003-04-25  
   last obs. used      2019-05-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .66775  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 06:34:01  

Additional Information
 Jupiter MOID = 1.59241 au 
 T_jup = 3.214 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.639055643657022E-15 -1.107861804155602E-14 8.815968550713853E-13 3.346244367026181E-14 2.337467840622105E-14 -1.588920970717344E-15
q -1.107861804155602E-14 3.478530003993611E-14 -1.952929904840033E-12 -9.958478226403955E-14 9.420767232130864E-14 6.21405798170453E-15
tp 8.815968550713853E-13 -1.952929904840033E-12 3.241951847711688E-8 3.867099439969266E-11 6.110937138052427E-9 -6.576252011646371E-12
node 3.346244367026181E-14 -9.958478226403955E-14 3.867099439969266E-11 1.757695906721774E-8 -1.755057262265742E-8 1.213103380184071E-10
peri 2.337467840622105E-14 9.420767232130864E-14 6.110937138052427E-9 -1.755057262265742E-8 1.871315899944556E-8 -1.223012574654668E-10
i -1.588920970717344E-15 6.21405798170453E-15 -6.576252011646371E-12 1.213103380184071E-10 -1.223012574654668E-10 3.655520714454182E-11

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 16.2   n/a MPO476611  

347946 (2003 HE26)          Discovered 2003-Apr-25 by Spacewatch at Kitt Peak
Reference: 20121228/Numbers.arcLast Updated: 2013-01-02

[ show close-approach data ]
Alternate Designations
 2003 HE26 = 2007 YS61 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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