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109497 (2001 QL230)
Classification: Main-belt Asteroid          SPK-ID: 2109497
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03907238990382522 5.4391e-08  
a 3.166022226606094 2.9633e-08 au
q 3.042318171723964 1.8424e-07 au
i 8.942803135532852 6.0761e-06 deg
node 211.8319515651544 2.9901e-05 deg
peri 319.98327063 7.7084e-05 deg
M 287.9151183745464 7.1199e-05 deg
tp 2459412.513128635229
(2021-Jul-17.01312864)
0.00040791 TDB
period 2057.639867945737
5.63
2.8888e-05
7.909e-08
d
yr
n .1749577297797059 2.4563e-09 deg/d
Q 3.289726281488224 3.079e-08 au
  Orbit Determination Parameters
   # obs. used (total)      578  
   data-arc span      8998 days (24.64 yr)  
   first obs. used      1995-06-28  
   last obs. used      2020-02-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56538  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:11:42  

Additional Information
 Earth MOID = 2.05109 au 
 Jupiter MOID = 1.69671 au 
 T_jup = 3.183 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457184.5 (2015-Jun-11.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04130694518291397 5.4597e-08  
q 3.03720401952663 1.8611e-07 au
tp 2457369.463852503072
(2015-Dec-12.96385250)
0.00037941 TDB
node 211.931255349588 2.9969e-05 deg
peri 322.35932581145 7.3087e-05 deg
i 8.9290178017326 6.07e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      578  
   data-arc span      8998 days (24.64 yr)  
   first obs. used      1995-06-28  
   last obs. used      2020-02-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56538  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:11:42  

Additional Information
 Jupiter MOID = 1.69671 au 
 T_jup = 3.183 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.980885265087246E-15 -1.005635616305536E-14 4.281815056946087E-12 -8.968684682267871E-15 8.494858429368969E-13 1.714783097735774E-15
q -1.005635616305536E-14 3.463840549770942E-14 -1.247316900430683E-11 2.747207641038944E-14 -2.530088436056532E-12 -6.631844539419607E-15
tp 4.281815056946087E-12 -1.247316900430683E-11 1.439496823951836E-7 -1.068237722104801E-10 2.530590002004807E-8 2.087764512432286E-11
node -8.968684682267871E-15 2.747207641038944E-14 -1.068237722104801E-10 8.981456546760944E-10 -9.058648992098906E-10 1.454258477442751E-11
peri 8.494858429368969E-13 -2.530088436056532E-12 2.530590002004807E-8 -9.058648992098906E-10 5.341647746991074E-9 -1.071414291198408E-11
i 1.714783097735774E-15 -6.631844539419607E-15 2.087764512432286E-11 1.454258477442751E-11 -1.071414291198408E-11 3.68443864691744E-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 14.8   n/a MPO453555  
diameter diameter 6.231 km 0.320 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.072   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

109497 (2001 QL230)          Discovered 2001-Aug-24 by LONEOS at Anderson Mesa
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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Alternate Designations
 2001 QL230 = 2004 AQ9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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