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187138 (2005 QW137)
Classification: Main-belt Asteroid          SPK-ID: 2187138
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05852537763962024 4.9535e-08  
a 2.896826370733341 2.1049e-08 au
q 2.727288513429762 1.4665e-07 au
i 2.695377843424891 6.3176e-06 deg
node 49.59490203306672 0.00010805 deg
peri 10.08730745433037 0.00012276 deg
M 335.9188556180728 5.6825e-05 deg
tp 2459320.963851854003
(2021-Apr-16.46385185)
0.00028426 TDB
period 1800.869011025396
4.93
1.9629e-05
5.374e-08
d
yr
n .1999034898129652 2.1788e-09 deg/d
Q 3.066364228036921 2.2281e-08 au
  Orbit Determination Parameters
   # obs. used (total)      365  
   data-arc span      6964 days (19.07 yr)  
   first obs. used      2001-12-19  
   last obs. used      2021-01-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55909  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:54:10  

Additional Information
 Earth MOID = 1.73887 au 
 Jupiter MOID = 2.13101 au 
 T_jup = 3.284 
[ 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 16.25   n/a MPCxxxxx  

187138 (2005 QW137)          Discovered 2005-Aug-28 by Spacewatch at Kitt Peak
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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