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442243 (2011 MD11)
Classification: Amor [NEO]          SPK-ID: 2442243
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 143 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4960130709830368 5.7395e-08  
a 2.503073263473095 1.072e-08 au
q 1.261516207162273 1.3982e-07 au
i 16.15331875610261 6.9434e-06 deg
node 15.91151743438841 9.2436e-06 deg
peri 333.1531273588294 2.2201e-05 deg
M 69.01616136157296 7.3558e-06 deg
tp 2458723.195403381382
(2019-Aug-27.69540338)
2.9073e-05 TDB
period 1446.467795560213
3.96
9.2923e-06
2.544e-08
d
yr
n .2488821397233894 1.5988e-09 deg/d
Q 3.744630319783917 1.6037e-08 au
  Orbit Determination Parameters
   # obs. used (total)      835  
   data-arc span      3137 days (8.59 yr)  
   first obs. used      2011-06-26  
   last obs. used      2020-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .32935  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-04 05:44:47  

Additional Information
 Earth MOID = .280031 au 
 Jupiter MOID = 1.75518 au 
 T_jup = 3.236 
[ 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 18.1   n/a MPO353531  
rotation period rot_per 2.430 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Warner, B.D. (2016) Minor Planet Bull. 43, 143-154.]

442243 (2011 MD11)          Discovered 2011-Jun-26 by Siding Spring Survey at Siding Spring
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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