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JPL Small-Body Database Browser
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49914 (1999 XG171)
Classification: Main-belt Asteroid          SPK-ID: 2049914
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1891770421527033 4.6454e-08  
a 2.363481739852666 9.5166e-09 au
q 1.916365255125414 1.0815e-07 au
i 3.35451885267975 4.7537e-06 deg
node 56.36853128810372 7.559e-05 deg
peri 352.47937816983 7.6439e-05 deg
M 150.8706626558119 1.2029e-05 deg
tp 2458044.302412314054
(2017-Oct-17.80241231)
4.2828e-05 TDB
period 1327.170757006198
3.63
8.0159e-06
2.195e-08
d
yr
n .2712537162980293 1.6383e-09 deg/d
Q 2.810598224579918 1.1317e-08 au
  Orbit Determination Parameters
   # obs. used (total)      640  
   data-arc span      8598 days (23.54 yr)  
   first obs. used      1995-10-26  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57136  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:41:38  

Additional Information
 Earth MOID = .926169 au 
 Jupiter MOID = 2.56689 au 
 T_jup = 3.523 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.4   n/a MPO474380  

49914 (1999 XG171)          Discovered 1999-Dec-10 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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