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JPL Small-Body Database Browser
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109530 (2001 QK248)
Classification: Main-belt Asteroid          SPK-ID: 2109530
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1310841406178942 3.6938e-08  
a 2.659733061086449 1.4588e-08 au
q 2.311084238500931 9.7151e-08 au
i 13.50994515803244 6.2209e-06 deg
node 182.7403610782959 1.6674e-05 deg
peri 249.6033879696305 3.2033e-05 deg
M 70.59605418295762 2.4963e-05 deg
tp 2458689.805595798503
(2019-Jul-25.30559580)
0.00010971 TDB
period 1584.365965025
4.34
1.3034e-05
3.569e-08
d
yr
n .2272202306455879 1.8693e-09 deg/d
Q 3.008381883671968 1.65e-08 au
  Orbit Determination Parameters
   # obs. used (total)      614  
   data-arc span      9009 days (24.67 yr)  
   first obs. used      1995-05-09  
   last obs. used      2020-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56694  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 15:50:29  

Additional Information
 Earth MOID = 1.36303 au 
 Jupiter MOID = 2.38068 au 
 T_jup = 3.335 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456968.5 (2014-Nov-07.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .129079322571768 3.6639e-08  
q 2.31665707673508 9.6079e-08 au
tp 2457105.953915974618
(2015-Mar-24.45391597)
0.00011235 TDB
node 182.772204437967 1.6678e-05 deg
peri 249.8353610492539 3.2448e-05 deg
i 13.50458066075293 6.22e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      614  
   data-arc span      9009 days (24.67 yr)  
   first obs. used      1995-05-09  
   last obs. used      2020-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56694  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 15:50:29  

Additional Information
 Jupiter MOID = 2.38068 au 
 T_jup = 3.335 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.34241165943127E-15 -3.490091763489101E-15 -1.44016868150984E-12 7.586147708260827E-15 -3.671236209816839E-13 2.675322572736488E-16
q -3.490091763489101E-15 9.231095008428261E-15 3.69906532921867E-12 -1.987637848914206E-14 9.382613021266868E-13 -1.292242895090394E-15
tp -1.44016868150984E-12 3.69906532921867E-12 1.262251733591593E-8 -4.820090494169317E-11 3.137202828125376E-9 -1.360807608853009E-11
node 7.586147708260827E-15 -1.987637848914206E-14 -4.820090494169317E-11 2.78166040713774E-10 -2.816825552367658E-10 -3.655003912185534E-12
peri -3.671236209816839E-13 9.382613021266868E-13 3.137202828125376E-9 -2.816825552367658E-10 1.052897356369334E-9 3.077981143466356E-13
i 2.675322572736488E-16 -1.292242895090394E-15 -1.360807608853009E-11 -3.655003912185534E-12 3.077981143466356E-13 3.868888207932997E-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 15.6   n/a MPO453555  

109530 (2001 QK248)          Discovered 2001-Aug-24 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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