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(2008 QS11)
Classification: Apollo [NEO, PHA]          SPK-ID: 3426408
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 54 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4827387809378731 3.7895e-08  
a 1.860691305714369 1.2831e-08 au
q .962463453092115 6.9235e-08 au
i 12.48726094952476 8.386e-06 deg
node 11.53132670146537 4.1634e-06 deg
peri 30.71378785896375 2.0484e-05 deg
M 203.4913107182204 1.9122e-05 deg
tp 2459403.537886709729
(2021-Jul-08.03788671)
5.3263e-05 TDB
period 927.0644325330379
2.54
9.5897e-06
2.626e-08
d
yr
n .3883225236204611 4.0169e-09 deg/d
Q 2.758919158336623 1.9026e-08 au
  Orbit Determination Parameters
   # obs. used (total)      403  
   # delay obs. used      4  
   # Doppler obs. used      3  
   data-arc span      2016 days (5.52 yr)  
   first obs. used      2008-08-27  
   last obs. used      2014-03-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .30015  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 09:03:04  

Additional Information
 Earth MOID = .00733831 au 
 Jupiter MOID = 2.71469 au 
 T_jup = 3.819 
[ hide covariance matrix ]
Orbital Elements at Epoch 2455092.5 (2009-Sep-18.0) TDB
Reference: JPL 54 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4821204577669705 3.7535e-08  
q .9636420026338177 6.8598e-08 au
tp 2454767.430580915726
(2008-Oct-27.93058092)
1.4282e-05 TDB
node 11.60699563423887 4.1629e-06 deg
peri 30.54786530501845 2.0516e-05 deg
i 12.50188090400305 8.3932e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      403  
   # delay obs. used      4  
   # Doppler obs. used      3  
   data-arc span      2016 days (5.52 yr)  
   first obs. used      2008-08-27  
   last obs. used      2014-03-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .30015  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 09:03:04  

Additional Information
 Jupiter MOID = 2.71469 au 
 T_jup = 3.819 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.408894185453783E-15 -2.562238876592201E-15 5.218046776350096E-13 1.474660107877216E-14 7.212641132930773E-13 2.257939663161282E-14
q -2.562238876592201E-15 4.705725603917307E-15 -9.57969442067752E-13 -3.148578468912252E-14 -1.319606362934444E-12 -2.61486707555255E-14
tp 5.218046776350096E-13 -9.57969442067752E-13 2.039861598673778E-10 -3.697384736682247E-12 2.886225923635661E-10 9.62941463193998E-12
node 1.474660107877216E-14 -3.148578468912252E-14 -3.697384736682247E-12 1.732958654569184E-11 -1.970648142577225E-11 -1.965780105534838E-11
peri 7.212641132930773E-13 -1.319606362934444E-12 2.886225923635661E-10 -1.970648142577225E-11 4.209061382093594E-10 3.222721833109775E-11
i 2.257939663161282E-14 -2.61486707555255E-14 9.62941463193998E-12 -1.965780105534838E-11 3.222721833109775E-11 7.044652573256235E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 19.9   n/a E2013Q40  
diameter diameter 0.453 km 0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  
rotation period rot_per 46.65 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Skiff, B.A.; Bowell, E.; Koehn, B.W.; Sanborn, J.J.; McLelland, K.P.; Warner, B.D. (2012) Minor Planet Bull. 39, 111-130.]
geometric albedo albedo 0.094   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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