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117687 (2005 EX259)
Classification: Main-belt Asteroid          SPK-ID: 2117687
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1535156607192964 4.2766e-08  
a 2.361954108446188 1.3901e-08 au
q 1.999357162899415 1.014e-07 au
i 2.002519991592944 5.3065e-06 deg
node 229.7849775999451 0.00014642 deg
peri 22.05300105021177 0.00014762 deg
M 22.82113462934091 1.9055e-05 deg
tp 2458916.449492127943
(2020-Mar-07.94949213)
7.0043e-05 TDB
period 1325.884243942793
3.63
1.1705e-05
3.205e-08
d
yr
n .2715169153300027 2.3969e-09 deg/d
Q 2.724551053992962 1.6035e-08 au
  Orbit Determination Parameters
   # obs. used (total)      366  
   data-arc span      7073 days (19.36 yr)  
   first obs. used      1999-10-29  
   last obs. used      2019-03-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58996  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 03:05:01  

Additional Information
 Earth MOID = .985192 au 
 Jupiter MOID = 2.31003 au 
 T_jup = 3.534 
[ 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 16.6   n/a MPO436565  
rotation period rot_per 15.47 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Stephens, R.D.; French, L.M.; James, D.; Rohl, D.; Warner, B.D. (2017) Minor Planet Bull. 44, 42-49.]

117687 (2005 EX259)          Discovered 2005-Mar-11 by Mt. Lemmon Survey at Mt. Lemmon
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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