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17481 (1991 PE11)
Classification: Main-belt Asteroid          SPK-ID: 2017481
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1721219220179611 7.4429e-08  
a 2.728357297797237 2.2176e-08 AU
q 2.258747195748645 2.0397e-07 AU
i 4.783935611866343 7.169e-06 deg
node 340.6665223245192 6.4054e-05 deg
peri 9.324724543772133 6.5965e-05 deg
M 49.93772512405616 1.7292e-05 deg
tp 2456772.162865767544
(2014-Apr-24.66286577)
7.8096e-05 JED
period 1646.077551980555
4.51
2.0069e-05
5.495e-08
d
yr
n .2187017249380804 2.6664e-09 deg/d
Q 3.197967399845827 2.5993e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      810  
   data-arc span      8529 days (23.35 yr)  
   first obs. used      1991-08-05  
   last obs. used      2014-12-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52957  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 02:35:37  

Additional Information
 Earth MOID = 1.25305 AU 
 T_jup = 3.329 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.9 mag n/a MPO229174  

17481 (1991 PE11)          Discovered 1991-Aug-07 by Holt, H. E. at Palomar (675)
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 PE11 = 1999 JS105 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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