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JPL Small-Body Database Browser
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469756 (2005 QT21)
Classification: Main-belt Asteroid          SPK-ID: 2469756
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1983991124435494 7.8029e-08  
a 2.417684226762975 3.0286e-08 au
q 1.938017822004431 1.7825e-07 au
i 2.169859161474689 9.0253e-06 deg
node 161.1594591280131 0.00021962 deg
peri 238.3047807518236 0.00022217 deg
M 185.1783918466303 4.0363e-05 deg
tp 2459267.292033871677
(2021-Feb-21.79203387)
0.00016439 TDB
period 1373.086168977544
3.76
2.5801e-05
7.064e-08
d
yr
n .262183108484787 4.9266e-09 deg/d
Q 2.897350631521518 3.6295e-08 au
  Orbit Determination Parameters
   # obs. used (total)      100  
   data-arc span      5031 days (13.77 yr)  
   first obs. used      2005-07-30  
   last obs. used      2019-05-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52121  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 10:18:59  

Additional Information
 Earth MOID = .946277 au 
 Jupiter MOID = 2.51689 au 
 T_jup = 3.487 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.6   n/a MPO382971  

469756 (2005 QT21)          Discovered 2005-Aug-26 by CINEOS at Campo Imperatore
Reference: Last Updated: 2016-08-22
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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