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49940 (1999 XZ186)
Classification: Main-belt Asteroid          SPK-ID: 2049940
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06004971858009935 4.1006e-08  
a 2.558738649505434 1.5737e-08 au
q 2.40508711368261 1.0949e-07 au
i 9.032346185696737 4.5301e-06 deg
node 318.0117319774805 2.4606e-05 deg
peri 192.9786467941491 4.3573e-05 deg
M 310.5341040957698 3.6507e-05 deg
tp 2459205.919041798379
(2020-Dec-22.41904180)
0.00015132 TDB
period 1494.9866710307
4.09
1.3792e-05
3.776e-08
d
yr
n .2408048225284861 2.2215e-09 deg/d
Q 2.712390185328259 1.6682e-08 au
  Orbit Determination Parameters
   # obs. used (total)      725  
   data-arc span      8099 days (22.17 yr)  
   first obs. used      1998-08-17  
   last obs. used      2020-10-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53509  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:30:01  

Additional Information
 Earth MOID = 1.41727 au 
 Jupiter MOID = 2.29837 au 
 T_jup = 3.416 
[ 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 15.3   n/a MPO502489  

49940 (1999 XZ186)          Discovered 1999-Dec-12 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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