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JPL Small-Body Database Browser
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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 ]

[ 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 .201365150345774 1.1527e-07  
a 3.15239729851753 8.2547e-08 au
q 2.517614342551936 3.6932e-07 au
i 28.02466208737256 1.5885e-05 deg
node 36.01111100321397 2.0754e-05 deg
peri 318.7968559372816 5.0572e-05 deg
M 148.7454493537046 5.9342e-05 deg
tp 2457755.802839843425
(2017-Jan-02.30283984)
0.00031694 TDB
period 2044.371636091288
5.60
8.0299e-05
2.198e-07
d
yr
n .1760932276913691 6.9166e-09 deg/d
Q 3.787180254483125 9.9169e-08 au
  Orbit Determination Parameters
   # obs. used (total)      88  
   data-arc span      6701 days (18.35 yr)  
   first obs. used      2000-11-19  
   last obs. used      2019-03-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64424  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 14:57:04  

Additional Information
 Earth MOID = 1.56724 au 
 Jupiter MOID = 1.81565 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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