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187106 (2005 QW42)
Classification: Main-belt Asteroid          SPK-ID: 2187106
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05192252885674584 1.2852e-07  
a 2.620841317412929 2.8122e-08 au
q 2.484760608480604 3.5638e-07 au
i 21.97385134090325 6.6266e-06 deg
node 355.7646670276727 1.2809e-05 deg
peri 201.8937733708861 6.6137e-05 deg
M 5.142098827150585 7.2747e-05 deg
tp 2459178.364087194114
(2020-Nov-24.86408719)
0.00031298 TDB
period 1549.742406358003
4.24
2.4944e-05
6.829e-08
d
yr
n .2322966697710904 3.7389e-09 deg/d
Q 2.756922026345253 2.9583e-08 au
  Orbit Determination Parameters
   # obs. used (total)      504  
   data-arc span      6828 days (18.69 yr)  
   first obs. used      2001-09-29  
   last obs. used      2020-06-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57786  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:54:02  

Additional Information
 Earth MOID = 1.49267 au 
 Jupiter MOID = 2.21717 au 
 T_jup = 3.300 
[ 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 15.66   n/a E2021B55  

187106 (2005 QW42)          Discovered 2005-Aug-26 by LONEOS at Anderson Mesa
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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