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JPL Small-Body Database Browser
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49908 (1999 XZ168)
Classification: Main-belt Asteroid          SPK-ID: 2049908
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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1108294727257429 3.7632e-08  
a 2.246352170411653 8.5187e-09 au
q 1.997390143808601 8.523e-08 au
i 7.9946612632714 3.9081e-06 deg
node 283.5359741810713 2.8257e-05 deg
peri 259.6951181104873 3.4101e-05 deg
M 180.6799926409165 2.1701e-05 deg
tp 2459213.049852141578
(2020-Dec-29.54985214)
7.5981e-05 TDB
period 1229.745358694899
3.37
6.9953e-06
1.915e-08
d
yr
n .2927435321911359 1.6652e-09 deg/d
Q 2.495314197014705 9.4629e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1448  
   data-arc span      7779 days (21.30 yr)  
   first obs. used      1998-08-17  
   last obs. used      2019-12-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4972  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 04:24:51  

Additional Information
 Earth MOID = 1.01891 au 
 Jupiter MOID = 2.5268 au 
 T_jup = 3.610 
[ 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 14.6   n/a MPO439431  

49908 (1999 XZ168)          Discovered 1999-Dec-10 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 XZ168 = 1998 QO14 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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