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JPL Small-Body Database Browser
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214439 (2005 QS121)
Classification: Main-belt Asteroid          SPK-ID: 2214439
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0233688147245896 5.0606e-08  
a 3.167881175923509 4.4203e-08 au
q 3.093851547653838 1.578e-07 au
i 9.529474860853037 6.6315e-06 deg
node 171.9551189608658 3.0356e-05 deg
peri 64.74082117961883 0.00013799 deg
M 255.8229892175134 0.00013524 deg
tp 2459196.465531985374
(2020-Dec-12.96553199)
0.00077567 TDB
period 2059.452367688809
5.64
4.3105e-05
1.18e-07
d
yr
n .1748037515448851 3.6587e-09 deg/d
Q 3.241910804193181 4.5236e-08 au
  Orbit Determination Parameters
   # obs. used (total)      223  
   data-arc span      8919 days (24.42 yr)  
   first obs. used      1994-09-09  
   last obs. used      2019-02-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63699  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 10:18:08  

Additional Information
 Earth MOID = 2.09909 au 
 Jupiter MOID = 1.74156 au 
 T_jup = 3.181 
[ 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 15.6   n/a MPO433401  

214439 (2005 QS121)          Discovered 2005-Aug-28 by Spacewatch at Kitt Peak
Reference: 20090509/Numbers.arcLast Updated: 2009-05-11

[ show close-approach data ]
Alternate Designations
 2005 QS121 = 2008 CF72 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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