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227182 (2005 QW52)
Classification: Main-belt Asteroid          SPK-ID: 2227182
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2333440960921677 3.9504e-08  
a 2.344226918586276 9.9203e-09 au
q 1.797215407233834 9.2037e-08 au
i 1.36664798699713 6.1984e-06 deg
node 39.08846609752651 0.00015871 deg
peri 305.1522311214505 0.00015981 deg
M 85.80728209284035 1.5996e-05 deg
tp 2458888.021928876508
(2020-Feb-08.52192888)
5.7189e-05 TDB
period 1310.9855348028
3.59
8.3217e-06
2.278e-08
d
yr
n .2746025722199533 1.7431e-09 deg/d
Q 2.891238429938718 1.2235e-08 au
  Orbit Determination Parameters
   # obs. used (total)      321  
   data-arc span      8137 days (22.28 yr)  
   first obs. used      1998-09-25  
   last obs. used      2021-01-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48299  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:38:45  

Additional Information
 Earth MOID = .788296 au 
 Jupiter MOID = 2.52235 au 
 T_jup = 3.525 
[ 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 17.4   n/a MPO433487  
rotation period rot_per 7.08 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:
[Chang, C.-H.; Lin, H.-W.; Ip, W.-H.; Chen, W.-P.; et al. (2019) Ap. J. Supp. Ser. 241, A6.]

227182 (2005 QW52)          Discovered 2005-Aug-27 by Siding Spring Survey at Siding Spring
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

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