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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2156149150693629 4.2998e-08  
a 2.319256868135377 1.1776e-08 au
q 1.819190495488331 1.0122e-07 au
i 8.529842332383222 7.1307e-06 deg
node 177.9741513365685 3.0019e-05 deg
peri 260.391873867856 3.4847e-05 deg
M 141.8661138789206 1.7091e-05 deg
tp 2457092.108974473241
(2015-Mar-10.60897447)
5.9841e-05 JED
period 1290.095035279793
3.53
9.8258e-06
2.69e-08
d
yr
n .2790492096746377 2.1253e-09 deg/d
Q 2.819323240782423 1.4315e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1111  
   data-arc span      9168 days (25.10 yr)  
   first obs. used      1991-03-13  
   last obs. used      2016-04-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54843  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 14:15:17  

Additional Information
 Earth MOID = .855549 au 
 Jupiter MOID = 2.50505 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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