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187146 (2005 QB166)
Classification: Main-belt Asteroid          SPK-ID: 2187146
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1231069361482207 5.5471e-08  
a 2.624094935198404 1.6587e-08 au
q 2.301050647564065 1.4169e-07 au
i 6.063750110309436 5.0507e-06 deg
node 108.6219011902609 5.6174e-05 deg
peri 276.0291414591331 6.0026e-05 deg
M 200.5037044107496 2.3186e-05 deg
tp 2459888.385003164661
(2022-Nov-04.88500316)
0.000103 TDB
period 1552.629170629892
4.25
1.4721e-05
4.03e-08
d
yr
n .231864766429675 2.1984e-09 deg/d
Q 2.947139222832744 1.8629e-08 au
  Orbit Determination Parameters
   # obs. used (total)      284  
   data-arc span      7063 days (19.34 yr)  
   first obs. used      2001-10-17  
   last obs. used      2021-02-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51516  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:54:12  

Additional Information
 Earth MOID = 1.31325 au 
 Jupiter MOID = 2.51205 au 
 T_jup = 3.385 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457386.5 (2015-Dec-30.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1212024003114948 5.5248e-08  
q 2.30882427281107 1.4081e-07 au
tp 2456781.490043586892
(2014-May-03.99004359)
9.4596e-05 TDB
node 108.6864253529563 5.6145e-05 deg
peri 276.1094752392218 6.0147e-05 deg
i 6.063051527168642 5.0511e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      284  
   data-arc span      7063 days (19.34 yr)  
   first obs. used      2001-10-17  
   last obs. used      2021-02-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51516  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:54:12  

Additional Information
 Jupiter MOID = 2.51205 au 
 T_jup = 3.385 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.052343609376379E-15 -7.741542489199671E-15 -8.063540106130164E-13 -1.895783492816509E-14 -1.87063251294974E-13 3.326154213621524E-16
q -7.741542489199671E-15 1.982677626669614E-14 2.389069993982308E-12 4.728676905104117E-14 5.605680116158845E-13 -8.125989931238059E-16
tp -8.063540106130164E-13 2.389069993982308E-12 8.948368892393034E-9 -7.547745221171754E-12 2.086513028565576E-9 -3.864279257734615E-12
node -1.895783492816509E-14 4.728676905104117E-14 -7.547745221171754E-12 3.152237044083253E-9 -3.136129300702197E-9 6.689143378906089E-11
peri -1.87063251294974E-13 5.605680116158845E-13 2.086513028565576E-9 -3.136129300702197E-9 3.617718609365569E-9 -6.740453740992929E-11
i 3.326154213621524E-16 -8.125989931238059E-16 -3.864279257734615E-12 6.689143378906089E-11 -6.740453740992929E-11 2.551343633679748E-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 16.57   n/a E2021B55  

187146 (2005 QB166)          Discovered 2005-Aug-31 by NEAT at Palomar
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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