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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1010609949469952 4.7115e-08  
a 2.84897634641071 2.0916e-08 au
q 2.561055962261988 1.3968e-07 au
i 3.094459106807643 4.5446e-06 deg
node 89.50953271263124 9.785e-05 deg
peri 274.6254929112241 0.00010049 deg
M 97.19546279655232 2.3151e-05 deg
tp 2458126.285113261220
(2018-Jan-07.78511326)
0.00011235 TDB
period 1756.433421005497
4.81
1.9343e-05
5.296e-08
d
yr
n .2049608005032793 2.2571e-09 deg/d
Q 3.136896730559431 2.303e-08 au
  Orbit Determination Parameters
   # obs. used (total)      792  
   data-arc span      7498 days (20.53 yr)  
   first obs. used      1998-08-26  
   last obs. used      2019-03-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5636  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 06:47:10  

Additional Information
 Earth MOID = 1.56029 au 
 Jupiter MOID = 2.30932 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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