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39816 (1997 XE11)
Classification: Main-belt Asteroid          SPK-ID: 2039816
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2153959736907483 4.4478e-08  
a 2.320000711597317 1.2673e-08 au
q 1.820281899359584 1.0562e-07 au
i 8.529138278137923 7.3948e-06 deg
node 177.9720009729868 3.2114e-05 deg
peri 260.4715101071558 3.7731e-05 deg
M 85.99327968440537 1.762e-05 deg
tp 2457092.186447051256
(2015-Mar-10.68644705)
6.2648e-05 JED
period 1290.715733472322
3.53
1.0576e-05
2.896e-08
d
yr
n .2789150164238856 2.2853e-09 deg/d
Q 2.819719523835051 1.5402e-08 au
  Orbit Determination Parameters
   # obs. used (total)      975  
   data-arc span      9044 days (24.76 yr)  
   first obs. used      1991-03-13  
   last obs. used      2015-12-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56033  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 14:38:40  

Additional Information
 Earth MOID = .857575 au 
 Jupiter MOID = 2.50575 au 
 T_jup = 3.533 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.6 mag n/a MPO333170  

39816 (1997 XE11)          Discovered 1997-Dec-10 by BAO Schmidt CCD Asteroid Program at Xinglong
Reference: 20020526/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 XE11 = 1991 EQ7 = 2000 RM7 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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