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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1648939320133148 4.5155e-08  
a 3.133738500833273 2.7595e-08 au
q 2.617004037529365 1.5041e-07 au
i 6.333321426521501 5.4316e-06 deg
node 92.15130604262376 4.4684e-05 deg
peri 315.0843235226043 4.8598e-05 deg
M 271.8659044917175 2.1444e-05 deg
tp 2459496.559770435771
(2021-Oct-09.05977044)
0.00012461 TDB
period 2026.247802589578
5.55
2.6764e-05
7.328e-08
d
yr
n .1776682987835516 2.3467e-09 deg/d
Q 3.650472964137182 3.2145e-08 au
  Orbit Determination Parameters
   # obs. used (total)      613  
   data-arc span      7573 days (20.73 yr)  
   first obs. used      1999-11-04  
   last obs. used      2020-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58619  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 10:03:22  

Additional Information
 Earth MOID = 1.63194 au 
 Jupiter MOID = 1.74451 au 
 T_jup = 3.182 
[ 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 14.7   n/a MPO351683  

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

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