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9185 (1991 PX17)
Classification: Main-belt Asteroid          SPK-ID: 2009185
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1113178128804118 6.7878e-08  
a 2.326276274310439 1.8071e-08 AU
q 2.067320287298608 1.5817e-07 AU
i 6.660753355846392 7.6536e-06 deg
node .2165606781694922 6.2419e-05 deg
peri 277.9971827892206 7.2808e-05 deg
M 198.5276616803372 4.1552e-05 deg
tp 2457381.780825872183
(2015-Dec-25.28082587)
0.00015291 JED
period 1295.956319773587
3.55
1.5101e-05
4.134e-08
d
yr
n .2777871402817764 3.2368e-09 deg/d
Q 2.58523226132227 2.0083e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      951  
   data-arc span      18942 days (51.86 yr)  
   first obs. used      1962-05-07  
   last obs. used      2014-03-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .57814  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Apr-17 13:56:09  

Additional Information
 Earth MOID = 1.0635 AU 
 T_jup = 3.557 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.5 mag n/a MPO240278  

9185 (1991 PX17)          Discovered 1991-Aug-07 by Holt, H. E. at Palomar (675)
Reference: 19980910/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1991 PX17 = 1962 JW = 1976 GT5 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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