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JPL Small-Body Database Browser
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226399 (2003 QH21)
Classification: Outer Main-belt Asteroid          SPK-ID: 2226399
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1336415983692507 5.0207e-08  
a 3.236446027711553 3.5747e-08 au
q 2.803922207532369 1.598e-07 au
i 5.317433648430374 4.7345e-06 deg
node 126.054873435864 6.1489e-05 deg
peri 240.211014280935 6.3997e-05 deg
M 241.5018956296536 1.937e-05 deg
tp 2459300.519088017100
(2021-Mar-27.01908802)
0.00012054 TDB
period 2126.674287535856
5.82
3.5234e-05
9.647e-08
d
yr
n .1692783902593407 2.8046e-09 deg/d
Q 3.668969847890737 4.0524e-08 au
  Orbit Determination Parameters
   # obs. used (total)      368  
   data-arc span      8812 days (24.13 yr)  
   first obs. used      1995-03-26  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54552  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 08:28:52  

Additional Information
 Earth MOID = 1.8062 au 
 Jupiter MOID = 1.80017 au 
 T_jup = 3.164 
[ 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 15.0   n/a MPO437074  

226399 (2003 QH21)          Discovered 2003-Aug-22 by NEAT at Palomar
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

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