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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .111421287239322 5.612e-08  
a 2.325061177106006 1.4003e-08 au
q 2.065999867842682 1.3586e-07 au
i 6.664725440742023 6.958e-06 deg
node .1835429810380725 4.8007e-05 deg
peri 278.4451093682731 5.8498e-05 deg
M 4.843972252084939 3.4724e-05 deg
tp 2457383.075948356782
(2015-Dec-26.57594836)
0.00012486 JED
period 1294.94106595238
3.55
1.1698e-05
3.203e-08
d
yr
n .2780049296955717 2.5114e-09 deg/d
Q 2.58412248636933 1.5563e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1109  
   data-arc span      19363 days (53.01 yr)  
   first obs. used      1962-05-07  
   last obs. used      2015-05-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55422  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 14:27:05  

Additional Information
 Earth MOID = 1.06108 au 
 Jupiter MOID = 2.53945 au 
 T_jup = 3.558 
[ 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
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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