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JPL Small-Body Database Browser
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305240 (2007 XE31)
Classification: Main-belt Asteroid          SPK-ID: 2305240
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 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2066896779886079 1.7231e-07  
a 2.774961272098903 6.5967e-08 au
q 2.201405420337923 5.0455e-07 au
i 3.019198123652052 8.8534e-06 deg
node 287.2282307352622 0.00028047 deg
peri 117.7933747099215 0.00028513 deg
M 213.0854575451573 6.3226e-05 deg
tp 2459289.542647054742
(2021-Mar-16.04264705)
0.00031554 TDB
period 1688.4329406393
4.62
6.0207e-05
1.648e-07
d
yr
n .2132154563767818 7.6029e-09 deg/d
Q 3.348517123859883 7.9602e-08 au
  Orbit Determination Parameters
   # obs. used (total)      73  
   data-arc span      4185 days (11.46 yr)  
   first obs. used      2002-11-07  
   last obs. used      2014-04-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61662  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-May-15 18:17:50  

Additional Information
 Earth MOID = 1.21224 au 
 Jupiter MOID = 2.06386 au 
 T_jup = 3.302 
[ 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 17.5   n/a MPO258182  

305240 (2007 XE31)          Discovered 2007-Dec-15 by Spacewatch at Kitt Peak
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

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