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JPL Small-Body Database Browser
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249997 (2001 XE202)
Classification: Main-belt Asteroid          SPK-ID: 2249997
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1751894631795553 4.2264e-08  
a 2.78042376079588 2.0637e-08 au
q 2.29332281473037 1.2334e-07 au
i 3.803351105872112 5.0483e-06 deg
node 296.7072337531759 7.5337e-05 deg
peri 102.2385095283466 7.7279e-05 deg
M 283.5437895996249 1.5645e-05 deg
tp 2458960.145955827581
(2020-Apr-20.64595583)
7.4828e-05 TDB
period 1693.420893082794
4.64
1.8853e-05
5.162e-08
d
yr
n .2125874326167292 2.3668e-09 deg/d
Q 3.267524706861391 2.4252e-08 au
  Orbit Determination Parameters
   # obs. used (total)      296  
   data-arc span      6589 days (18.04 yr)  
   first obs. used      2001-10-14  
   last obs. used      2019-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61051  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 02:49:44  

Additional Information
 Earth MOID = 1.30422 au 
 Jupiter MOID = 2.16817 au 
 T_jup = 3.308 
[ 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 16.7   n/a MPO367676  

249997 (2001 XE202)          Discovered 2001-Dec-11 by LINEAR at Socorro
Reference: 20100923/Numbers.arcLast Updated: 2010-09-27

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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