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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2726547395249957 3.9258e-07  
a 2.546927508485009 4.2871e-08 au
q 1.852495652069983 1.0257e-06 au
i 3.632201493877635 7.7906e-06 deg
node 247.8744754768562 0.0002366 deg
peri 42.85004503735561 0.00028577 deg
M 174.3250062200205 7.5833e-05 deg
tp 2458677.580122511962
(2019-Jul-13.08012251)
0.00030792 TDB
period 1484.647334927042
4.06
3.7485e-05
1.026e-07
d
yr
n .2424818281963851 6.1223e-09 deg/d
Q 3.241359364900036 5.456e-08 au
  Orbit Determination Parameters
   # obs. used (total)      121  
   data-arc span      6275 days (17.18 yr)  
   first obs. used      2003-10-03  
   last obs. used      2020-12-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4634  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 14:43:40  

Additional Information
 Earth MOID = .837913 au 
 Jupiter MOID = 1.96194 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 18.03   n/a MPCxxxxx  

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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