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180911 (2005 KN11)
Classification: Main-belt Asteroid          SPK-ID: 2180911
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1839435810544459 3.5676e-08  
a 2.352143047731529 1.366e-08 au
q 1.919481432379473 8.3067e-08 au
i 9.355370139012086 4.0172e-06 deg
node 269.0771842095125 3.2616e-05 deg
peri 342.8746326342656 3.6115e-05 deg
M 126.1699258779964 1.742e-05 deg
tp 2458738.706974589692
(2019-Sep-12.20697459)
6.1951e-05 TDB
period 1317.631662147971
3.61
1.1478e-05
3.143e-08
d
yr
n .2732174782542313 2.38e-09 deg/d
Q 2.784804663083585 1.6173e-08 au
  Orbit Determination Parameters
   # obs. used (total)      470  
   data-arc span      8192 days (22.43 yr)  
   first obs. used      1998-08-02  
   last obs. used      2021-01-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55495  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:28:27  

Additional Information
 Earth MOID = .905227 au 
 Jupiter MOID = 2.2818 au 
 T_jup = 3.516 
[ 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 16.39   n/a E2021B55  
rotation period rot_per 60.7449 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:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]

180911 (2005 KN11)          Discovered 2005-May-30 by Siding Spring Survey at Siding Spring
Reference: 20080321/Numbers.arcLast Updated: 2008-03-26

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