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118464 (1999 XE61)
Classification: Main-belt Asteroid          SPK-ID: 2118464
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .164394759079843 4.3614e-08  
a 3.129702134286636 2.6544e-08 au
q 2.615195505928915 1.4663e-07 au
i 6.330878423141193 5.2704e-06 deg
node 92.13000658082144 4.3435e-05 deg
peri 315.4990746664381 4.7538e-05 deg
M 307.0002106373424 2.1747e-05 deg
tp 2459498.231358306690
(2021-Oct-10.73135831)		 0.0001244 TDB
period 2022.334244707908
5.54		 2.5728e-05
7.044e-08		 d
yr
n .1780121169099799 2.2647e-09 deg/d
Q 3.644208762644358 3.0908e-08 au
   Orbit Determination Parameters
   # obs. used (total)      647  
   data-arc span      7617 days (20.85 yr)  
   first obs. used      1999-11-04  
   last obs. used      2020-09-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58403  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 16:57:24  

Additional Information
 Earth MOID = 1.6293 au 
 Jupiter MOID = 1.74956 au 
 T_jup = 3.183 
[ 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 14.71   n/a E2021B55  

118464 (1999 XE61)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

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