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442267 (2011 QD40)
Classification: Main-belt Asteroid          SPK-ID: 2442267
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ 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 .2729046131291608 6.1058e-07  
a 2.545991324382834 7.5428e-08 au
q 1.851178546971937 1.6022e-06 au
i 3.633406115803102 8.5703e-06 deg
node 247.8788274076319 0.00024813 deg
peri 42.77512598195113 0.00038392 deg
M 78.35868642478697 0.00013577 deg
tp 2458677.525338085701
(2019-Jul-13.02533809)
0.00055892 TDB
period 1483.828833715211
4.06
6.594e-05
1.805e-07
d
yr
n .2426155846416813 1.0782e-08 deg/d
Q 3.240804101793731 9.6012e-08 au
  Orbit Determination Parameters
   # obs. used (total)      103  
   data-arc span      5759 days (15.77 yr)  
   first obs. used      2003-10-03  
   last obs. used      2019-07-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46027  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:42:55  

Additional Information
 Earth MOID = .836944 au 
 Jupiter MOID = 1.96372 au 
 T_jup = 3.387 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456705.5 (2014-Feb-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2722589030970899 6.0644e-07  
q 1.853364516946659 1.5857e-06 au
tp 2457194.461230896303
(2015-Jun-20.96123090)
0.00057125 TDB
node 247.9020783850553 0.0002482 deg
peri 42.89920581336317 0.00038564 deg
i 3.631984546491284 8.5646e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      103  
   data-arc span      5759 days (15.77 yr)  
   first obs. used      2003-10-03  
   last obs. used      2019-07-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46027  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:42:55  

Additional Information
 Jupiter MOID = 1.96372 au 
 T_jup = 3.387 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.677646805814358E-13 -9.614148043480397E-13 -1.13579177698643E-10 1.60429925510577E-11 -8.209694381087872E-11 -9.664929790411064E-13
q -9.614148043480397E-13 2.514540713988463E-12 2.807463488062056E-10 -4.094505717033293E-11 2.065820160300391E-10 2.597962250429004E-12
tp -1.13579177698643E-10 2.807463488062056E-10 3.263254122094204E-7 -2.250598904603359E-8 1.68890374203905E-7 -9.572355873224957E-10
node 1.60429925510577E-11 -4.094505717033293E-11 -2.250598904603359E-8 6.160091722653332E-8 -7.196563064871865E-8 1.566515563306507E-9
peri -8.209694381087872E-11 2.065820160300391E-10 1.68890374203905E-7 -7.196563064871865E-8 1.487202985086069E-7 -1.93344642516017E-9
i -9.664929790411064E-13 2.597962250429004E-12 -9.572355873224957E-10 1.566515563306507E-9 -1.93344642516017E-9 7.3351667987863E-11

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 17.9   n/a MPO283202  

442267 (2011 QD40)          Discovered 2007-Sep-03 by CSS at Catalina
Reference: Last Updated: 2015-09-02

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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