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JPL Small-Body Database Browser
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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 ]

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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 54 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4828716793160636 3.8111e-08  
a 1.860711255040763 1.2961e-08 au
q .9622264865969293 6.9795e-08 au
i 12.48812763096353 8.3863e-06 deg
node 11.53488005558672 4.1634e-06 deg
peri 30.72897922242005 2.0467e-05 deg
M 48.11130457885587 1.7575e-05 deg
tp 2458476.602787272119
(2018-Dec-24.10278727)
4.4035e-05 TDB
period 927.0793417985893
2.54
9.6865e-06
2.652e-08
d
yr
n .3883162786278664 4.0573e-09 deg/d
Q 2.759196023484596 1.9219e-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 = .00652163 au 
 Jupiter MOID = 2.71223 au 
 T_jup = 3.819 
[ show covariance matrix ]

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-January); 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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