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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2150047599480427 4.4623e-08  
a 2.319516722652225 1.2662e-08 AU
q 1.820809586502913 1.0577e-07 AU
i 8.527095506753387 7.4952e-06 deg
node 177.9799352501723 3.2307e-05 deg
peri 260.4717032685249 3.7934e-05 deg
M 334.4310288007323 1.7619e-05 deg
tp 2457092.144296549200
(2015-Mar-10.64429655)
6.3303e-05 JED
period 1290.311858877481
3.53
1.0566e-05
2.893e-08
d
yr
n .2790023183334807 2.2846e-09 deg/d
Q 2.818223858801538 1.5385e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      971  
   data-arc span      8763 days (23.99 yr)  
   first obs. used      1991-03-13  
   last obs. used      2015-03-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55105  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-07 17:53:31  

Additional Information
 Earth MOID = .858393 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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