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71099 (1999 XQ138)
Classification: Main-belt Asteroid          SPK-ID: 2071099
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .101424843485471 4.6674e-08  
a 2.847918467565723 1.8446e-08 au
q 2.559068782733487 1.3694e-07 au
i 3.094420904403248 3.8544e-06 deg
node 89.50768221138233 9.7215e-05 deg
peri 274.5121657753851 9.9266e-05 deg
M 179.310868575719 2.2085e-05 deg
tp 2458126.132778912312
(2018-Jan-07.63277891)
0.00010473 TDB
period 1755.455216361558
4.81
1.7055e-05
4.669e-08
d
yr
n .2050750122501864 1.9924e-09 deg/d
Q 3.136768152397959 2.0316e-08 au
  Orbit Determination Parameters
   # obs. used (total)      862  
   data-arc span      7909 days (21.65 yr)  
   first obs. used      1998-08-26  
   last obs. used      2020-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54843  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 13:43:13  

Additional Information
 Earth MOID = 1.55914 au 
 Jupiter MOID = 2.31275 au 
 T_jup = 3.297 
[ 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 14.9   n/a MPO319897  

71099 (1999 XQ138)          Discovered 1999-Dec-05 by Spacewatch at Kitt Peak
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 XQ138 = 1998 QO103 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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