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442265 (2011 QF38)
Classification: Main-belt Asteroid          SPK-ID: 2442265
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07535006755087194 1.6159e-07  
a 2.461923151705018 3.6675e-08 au
q 2.27641707591899 3.7559e-07 au
i 9.969490928011178 1.0787e-05 deg
node 327.3847643204031 3.87e-05 deg
peri 359.5138211015638 7.8388e-05 deg
M 101.8386490279172 6.4404e-05 deg
tp 2458601.364557418209
(2019-Apr-27.86455742)
0.00024994 TDB
period 1410.945261951138
3.86
3.1528e-05
8.632e-08
d
yr
n .2551480980220103 5.7014e-09 deg/d
Q 2.647429227491047 3.9439e-08 au
  Orbit Determination Parameters
   # obs. used (total)      168  
   data-arc span      4424 days (12.11 yr)  
   first obs. used      2007-09-14  
   last obs. used      2019-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58326  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 16:00:06  

Additional Information
 Earth MOID = 1.26474 au 
 Jupiter MOID = 2.64072 au 
 T_jup = 3.465 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457336.5 (2015-Nov-10.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07650578135469112 1.6187e-07  
q 2.273407554678199 3.7681e-07 au
tp 2457190.561758609950
(2015-Jun-17.06175861)
0.00023931 TDB
node 327.4760076216429 3.8662e-05 deg
peri 359.4226048924355 7.7366e-05 deg
i 9.973762306601722 1.0796e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      168  
   data-arc span      4424 days (12.11 yr)  
   first obs. used      2007-09-14  
   last obs. used      2019-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58326  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 16:00:06  

Additional Information
 Jupiter MOID = 2.64072 au 
 T_jup = 3.465 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.620290932693071E-14 -6.086251651218698E-14 9.456354533479623E-12 6.05826486159159E-14 1.441739518039353E-12 -8.317147898556366E-14
q -6.086251651218698E-14 1.419865579858568E-13 -2.215125932495651E-11 -1.341738694377335E-13 -3.394002194744307E-12 1.970884955119669E-13
tp 9.456354533479623E-12 -2.215125932495651E-11 5.727053760796656E-8 -3.301646758460042E-11 1.598096915655677E-8 -1.155316238259642E-10
node 6.05826486159159E-14 -1.341738694377335E-13 -3.301646758460042E-11 1.494725003096193E-9 -1.482805565045697E-9 2.587363941208695E-10
peri 1.441739518039353E-12 -3.394002194744307E-12 1.598096915655677E-8 -1.482805565045697E-9 5.985533782209705E-9 -2.841677126890713E-10
i -8.317147898556366E-14 1.970884955119669E-13 -1.155316238259642E-10 2.587363941208695E-10 -2.841677126890713E-10 1.165533738796842E-10

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.0   n/a MPO495191  

442265 (2011 QF38)          Discovered 2007-Sep-14 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-09-02

Alternate Designations
 2011 QF38 = 2010 JE2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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