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392538 (2011 QA99)
Classification: Main-belt Asteroid          SPK-ID: 2392538
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2017349428412425 1.1459e-07  
a 3.151473534393354 7.5962e-08 au
q 2.515711201066822 3.6356e-07 au
i 28.02884551504316 1.4381e-05 deg
node 36.00368807637211 1.5888e-05 deg
peri 318.759896824849 4.6831e-05 deg
M 219.2655975760548 6.084e-05 deg
tp 2459799.352679056880
(2022-Aug-07.85267906)
0.0003675 TDB
period 2043.473091917896
5.59
7.3883e-05
2.023e-07
d
yr
n .1761706583873453 6.3695e-09 deg/d
Q 3.787235867719886 9.1286e-08 au
  Orbit Determination Parameters
   # obs. used (total)      113  
   data-arc span      7099 days (19.44 yr)  
   first obs. used      2000-11-19  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62625  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-22 01:23:35  

Additional Information
 Earth MOID = 1.56619 au 
 Jupiter MOID = 1.81902 au 
 T_jup = 2.997 
[ 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 15.4   n/a MPO434454  

392538 (2011 QA99)          Discovered 2000-Nov-19 by LINEAR at Socorro
Reference: Last Updated: 2014-04-17

[ show close-approach data ]
Alternate Designations
 2011 QA99 = 2000 WC4 = 2010 FY110 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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