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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 55 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4825772068675538 3.6646e-08  
a 1.861039467142999 1.1078e-08 au
q .96294423921885 6.706e-08 au
i 12.48561184446539 8.2841e-06 deg
node 11.51759406234238 4.1489e-06 deg
peri 30.70485023390089 1.9905e-05 deg
M 281.1728150026262 1.7489e-05 deg
tp 2459403.551087030081
(2021-Jul-08.05108703)		 4.6792e-05 TDB
period 927.3246448324202
2.54		 8.28e-06
2.267e-08		 d
yr
n .3882135582248618 3.4663e-09 deg/d
Q 2.759134695067148 1.6424e-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.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .29927  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 01:45:50  

Additional Information
 Earth MOID = .00657997 au 
 Jupiter MOID = 2.71562 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. 2020-October); 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 ]
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