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442268 (2011 QL45)
Classification: Main-belt Asteroid          SPK-ID: 2442268
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .238013385811324 8.8182e-08  
a 2.641285680282258 4.2871e-08 au
q 2.012624332623311 2.6021e-07 au
i 13.22761089256921 5.5708e-06 deg
node 169.7874384290969 2.8221e-05 deg
peri 128.3729414486908 3.6114e-05 deg
M 37.44616397514233 2.3873e-05 deg
tp 2458837.410378018237
(2019-Dec-19.91037802)
0.00010095 TDB
period 1567.911307348042
4.29
3.8173e-05
1.045e-07
d
yr
n .2296048241458902 5.59e-09 deg/d
Q 3.269947027941205 5.3074e-08 au
  Orbit Determination Parameters
   # obs. used (total)      138  
   data-arc span      4900 days (13.42 yr)  
   first obs. used      2006-03-25  
   last obs. used      2019-08-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54086  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 10:40:28  

Additional Information
 Earth MOID = 1.02681 au 
 Jupiter MOID = 2.13638 au 
 T_jup = 3.317 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457823.5 (2017-Mar-11.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .237838359130506 8.8055e-08  
q 2.01333168354262 2.5978e-07 au
tp 2457270.261480876999
(2015-Sep-04.76148088)
7.7322e-05 TDB
node 169.8292213488554 2.822e-05 deg
peri 128.5448850625969 3.6168e-05 deg
i 13.22710792508841 5.5719e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      138  
   data-arc span      4900 days (13.42 yr)  
   first obs. used      2006-03-25  
   last obs. used      2019-08-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54086  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 10:40:28  

Additional Information
 Jupiter MOID = 2.13638 au 
 T_jup = 3.317 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.753619213867976E-15 -2.281513570158278E-14 -2.1782729359874E-12 -8.237328706911825E-14 -2.697139012092595E-13 -7.711017897157742E-14
q -2.281513570158278E-14 6.748751864690376E-14 6.982657647862366E-12 2.377091401535541E-13 9.937148926489162E-13 2.344755656601562E-13
tp -2.1782729359874E-12 6.982657647862366E-12 5.978708018828197E-9 -1.745555546323528E-11 1.755789513394879E-9 5.902000997832612E-11
node -8.237328706911825E-14 2.377091401535541E-13 -1.745555546323528E-11 7.963726461941064E-10 -7.842622498720431E-10 4.028351447533526E-11
peri -2.697139012092595E-13 9.937148926489162E-13 1.755789513394879E-9 -7.842622498720431E-10 1.308095407804589E-9 -2.438748240820559E-11
i -7.711017897157742E-14 2.344755656601562E-13 5.902000997832612E-11 4.028351447533526E-11 -2.438748240820559E-11 3.104654568934273E-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 16.9   n/a MPO495191  

442268 (2011 QL45)          Discovered 2010-Mar-15 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02

Alternate Designations
 2011 QL45 = 2010 EX100 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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