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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .111310661910872 5.8359e-08  
a 2.325549003534829 1.4896e-08 AU
q 2.066690604645198 1.3983e-07 AU
i 6.663998567416325 7.0732e-06 deg
node .1853695949797985 5.2577e-05 deg
peri 278.2893534251706 6.2196e-05 deg
M 253.7895376176447 3.5262e-05 deg
tp 2457382.665491251350
(2015-Dec-26.16549125)
0.00012812 JED
period 1295.348629169908
3.55
1.2446e-05
3.408e-08
d
yr
n .2779174593566344 2.6702e-09 deg/d
Q 2.58440740242446 1.6554e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1040  
   data-arc span      19320 days (52.90 yr)  
   first obs. used      1962-05-07  
   last obs. used      2015-03-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56257  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-07 16:34:19  

Additional Information
 Earth MOID = 1.0647 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
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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