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JPL Small-Body Database Browser
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442266 (2011 QS39)
Classification: Main-belt Asteroid          SPK-ID: 2442266
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1660722576691489 1.0336e-07  
a 2.588696584321196 3.569e-08 au
q 2.158785898142561 2.8334e-07 au
i 6.998570383635899 8.2517e-06 deg
node 169.1886132563265 6.4248e-05 deg
peri 123.0829730098684 6.7752e-05 deg
M 64.48289054239171 2.2341e-05 deg
tp 2458728.002734031897
(2019-Sep-01.50273403)
9.1638e-05 TDB
period 1521.31852222142
4.17
3.1462e-05
8.614e-08
d
yr
n .2366368349176018 4.8938e-09 deg/d
Q 3.018607270499831 4.1618e-08 au
  Orbit Determination Parameters
   # obs. used (total)      119  
   data-arc span      5737 days (15.71 yr)  
   first obs. used      2003-10-24  
   last obs. used      2019-07-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53109  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:42:55  

Additional Information
 Earth MOID = 1.15246 au 
 Jupiter MOID = 2.20821 au 
 T_jup = 3.391 
[ 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 17.2   n/a MPO477087  

442266 (2011 QS39)          Discovered 2007-Sep-14 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-09-02
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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