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49818 (1999 XT58)
Classification: Main-belt Asteroid          SPK-ID: 2049818
[ 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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1635639819737667 3.0121e-08  
a 2.320519500883152 6.8575e-09 au
q 1.940966091070926 7.1122e-08 au
i 1.574018795801445 3.4646e-06 deg
node 212.6914659876813 0.00011404 deg
peri 292.5186593948278 0.00011454 deg
M 227.2886825053077 1.1002e-05 deg
tp 2459476.472345436285
(2021-Sep-18.97234544)		 4.0406e-05 TDB
period 1291.148694714116
3.53		 5.7233e-06
1.567e-08		 d
yr
n .2788214877758217 1.2359e-09 deg/d
Q 2.700072910695378 7.9792e-09 au
   Orbit Determination Parameters
   # obs. used (total)      1185  
   data-arc span      9164 days (25.09 yr)  
   first obs. used      1995-10-15  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50142  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 21:28:43  

Additional Information
 Earth MOID = .953694 au 
 Jupiter MOID = 2.31265 au 
 T_jup = 3.559 
[ 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 15.7   n/a MPO436131  

49818 (1999 XT58)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1999 XT58 = 1997 EU50 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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