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109596 (2001 QK281)
Classification: Main-belt Asteroid          SPK-ID: 2109596
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2760875526008936 3.4122e-08  
a 2.626244128141556 1.2787e-08 au
q 1.901170814270486 8.8599e-08 au
i 17.7225046384562 5.6689e-06 deg
node 30.65563881343484 1.2986e-05 deg
peri 265.3278368960596 1.6652e-05 deg
M 177.554666554172 1.1864e-05 deg
tp 2458233.790827818813
(2018-Apr-25.29082782)
4.923e-05 TDB
period 1554.537018608941
4.26
1.1353e-05
3.108e-08
d
yr
n .2315802040675375 1.6913e-09 deg/d
Q 3.351317442012626 1.6317e-08 au
  Orbit Determination Parameters
   # obs. used (total)      832  
   data-arc span      8682 days (23.77 yr)  
   first obs. used      1996-04-11  
   last obs. used      2020-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51637  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 03:28:52  

Additional Information
 Earth MOID = .981897 au 
 Jupiter MOID = 2.19034 au 
 T_jup = 3.282 
[ show covariance matrix ]

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 15.3   n/a MPO410682  
rotation period rot_per 4.17 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:
[Chang, C.-K.; Lin, H.-W.; Ip, W.-H.; Prince, T.A.; et al. (2016) Astrophys. J. Sup. Ser. 227, A20.]

109596 (2001 QK281)          Discovered 2001-Aug-19 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2001 QK281 = 1996 GB6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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