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187979 (2001 QK234)
Classification: Main-belt Asteroid          SPK-ID: 2187979
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2133852746807787 4.0669e-08  
a 2.401993512906942 1.1357e-08 au
q 1.889443467373845 9.6942e-08 au
i 4.058367556698055 5.125e-06 deg
node 165.6848897912032 7.7184e-05 deg
peri 151.7020375618986 7.9096e-05 deg
M 137.8022540105116 1.7752e-05 deg
tp 2458876.012873096317
(2020-Jan-27.51287310)
6.4903e-05 TDB
period 1359.740934796559
3.72
9.6436e-06
2.64e-08
d
yr
n .2647563155505517 1.8777e-09 deg/d
Q 2.914543558440038 1.378e-08 au
  Orbit Determination Parameters
   # obs. used (total)      303  
   data-arc span      7643 days (20.93 yr)  
   first obs. used      2000-02-12  
   last obs. used      2021-01-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53817  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:57:35  

Additional Information
 Earth MOID = .87676 au 
 Jupiter MOID = 2.39855 au 
 T_jup = 3.490 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457827.5 (2017-Mar-15.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2136480822255939 4.0547e-08  
q 1.888468453909312 9.6634e-08 au
tp 2457517.472117202569
(2016-May-08.97211720)
6.0168e-05 TDB
node 165.7321309597821 7.7197e-05 deg
peri 151.8084150159744 7.9114e-05 deg
i 4.058345592992046 5.1265e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      303  
   data-arc span      7643 days (20.93 yr)  
   first obs. used      2000-02-12  
   last obs. used      2021-01-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53817  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:57:35  

Additional Information
 Jupiter MOID = 2.39855 au 
 T_jup = 3.490 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.644038819370857E-15 -3.901852257612421E-15 3.826785380395747E-13 -1.619331424351423E-14 4.853830034810445E-14 -7.627362583972954E-16
q -3.901852257612421E-15 9.338117822963989E-15 -6.875563741401196E-13 4.029475747914982E-14 -5.351304866130043E-14 1.844973202003206E-15
tp 3.826785380395747E-13 -6.875563741401196E-13 3.620229186135219E-9 -1.827204899258486E-11 1.070270163254924E-9 -2.897329189911568E-12
node -1.619331424351423E-14 4.029475747914982E-14 -1.827204899258486E-11 5.959357371037588E-9 -5.947845957654729E-9 1.409695996048839E-10
peri 4.853830034810445E-14 -5.351304866130043E-14 1.070270163254924E-9 -5.947845957654729E-9 6.259079356531693E-9 -1.414249144911356E-10
i -7.627362583972954E-16 1.844973202003206E-15 -2.897329189911568E-12 1.409695996048839E-10 -1.414249144911356E-10 2.628140413668423E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.97   n/a MPCxxxxx  

187979 (2001 QK234)          Discovered 2001-Aug-24 by LINEAR at Socorro
Reference: 20080618/Numbers.arcLast Updated: 2008-06-20

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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