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103081 (1999 XQ158)
Classification: Main-belt Asteroid          SPK-ID: 2103081
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1475518459342033 3.8997e-08  
a 2.228570573893827 9.8182e-09 au
q 1.899740871921146 8.573e-08 au
i 2.799634478792667 6.1568e-06 deg
node 148.2510396174995 9.764e-05 deg
peri 283.0593512135169 0.00010073 deg
M 120.3066755964986 2.2952e-05 deg
tp 2458794.407246335678
(2019-Nov-06.90724634)
7.7e-05 TDB
period 1215.172729146635
3.33
8.0304e-06
2.199e-08
d
yr
n .2962541796447432 1.9578e-09 deg/d
Q 2.557400275866508 1.1267e-08 au
  Orbit Determination Parameters
   # obs. used (total)      374  
   data-arc span      8408 days (23.02 yr)  
   first obs. used      1997-02-06  
   last obs. used      2020-02-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62132  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:50:50  

Additional Information
 Earth MOID = .91611 au 
 Jupiter MOID = 2.69737 au 
 T_jup = 3.628 
[ 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 17.1   n/a MPO474904  

103081 (1999 XQ158)          Discovered 1999-Dec-08 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1999 XQ158 = 2002 SD48 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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