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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 1 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1722445960273418 8.8832e-08  
a 2.72870906485292 2.9884e-08 AU
q 2.258703674301183 2.5037e-07 AU
i 4.783872567077824 8.7601e-06 deg
node 340.666384578234 6.9318e-05 deg
peri 9.326660480721515 7.1665e-05 deg
M 6.192971579108138 2.2039e-05 deg
tp 2456772.177547083676
(2014-Apr-24.67754708)
0.00010052 JED
period 1646.39590536359
4.51
2.7046e-05
7.405e-08
d
yr
n .2186594359395577 3.592e-09 deg/d
Q 3.198714455404656 3.5031e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      758  
   data-arc span      7573 days (20.73 yr)  
   first obs. used      1991-08-05  
   last obs. used      2012-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54533  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Aug-05 18:40:13  

Additional Information
 Earth MOID = 1.25136 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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