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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 ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2729047825561003 4.3538e-07  
a 2.545991297624002 4.2856e-08 au
q 1.8511780961562 1.1309e-06 au
i 3.633403393272054 7.9381e-06 deg
node 247.878611848764 0.00024127 deg
peri 42.77534062808378 0.00037836 deg
M 78.35869074033427 0.00013569 deg
tp 2458677.525325389892
(2019-Jul-13.02532539)
0.00055859 TDB
period 1483.828810322244
4.06
3.7465e-05
1.026e-07
d
yr
n .2426155884665823 6.1258e-09 deg/d
Q 3.240804499091804 5.4551e-08 au
  Orbit Determination Parameters
   # obs. used (total)      117  
   data-arc span      5866 days (16.06 yr)  
   first obs. used      2003-10-03  
   last obs. used      2019-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4616  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 08:47:38  

Additional Information
 Earth MOID = .836943 au 
 Jupiter MOID = 1.96372 au 
 T_jup = 3.387 
[ 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 17.9   n/a MPO283202  

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

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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