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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 ]

[ show orbit diagram ]
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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457408.5 (2016-Jan-21.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05906794225235316 5.1967e-08  
q 2.726833612189621 1.5403e-07 au
tp 2457499.463855952755
(2016-Apr-20.96385595)
0.00027478 TDB
node 49.66264919643868 0.0001077 deg
peri 6.337015868368516 0.0001216 deg
i 2.701582314704956 6.333e-06 deg
  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
 Jupiter MOID = 2.13101 au 
 T_jup = 3.284 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.700564213929941E-15 -7.938486697869591E-15 -8.102042034037192E-12 -4.9535129807596E-15 -1.620132401051448E-12 -1.900193866474365E-15
q -7.938486697869591E-15 2.372542192942353E-14 2.337074226600764E-11 9.17188884183321E-15 4.66493825519801E-12 5.902559145958413E-15
tp -8.102042034037192E-12 2.337074226600764E-11 7.55028082052181E-8 1.20211384629568E-10 1.554815074693664E-8 3.398284263124604E-12
node -4.9535129807596E-15 9.17188884183321E-15 1.20211384629568E-10 1.159951143351804E-8 -1.156079678939322E-8 -4.075404719616115E-10
peri -1.620132401051448E-12 4.66493825519801E-12 1.554815074693664E-8 -1.156079678939322E-8 1.478594294678679E-8 4.07729511066524E-10
i -1.900193866474365E-15 5.902559145958413E-15 3.398284263124604E-12 -4.075404719616115E-10 4.07729511066524E-10 4.010676085308708E-11

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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