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9025 Polanskey (1988 SM2)
Classification: Outer Main-belt Asteroid          SPK-ID: 2009025
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1494243639622205 5.2115e-08  
a 3.243021075050879 4.313e-08 AU
q 2.758434713595324 1.7242e-07 AU
i 1.990596742735316 5.4687e-06 deg
node 139.5138390031557 0.00019206 deg
peri 173.728522636884 0.0001935 deg
M 175.0605301854963 2.3902e-05 deg
tp 2455763.189385313241
(2011-Jul-20.68938531)
0.0001373 JED
period 2133.158290401271
5.84
4.2554e-05
1.165e-07
d
yr
n .1687638473056212 3.3666e-09 deg/d
Q 3.727607436506433 4.9574e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      817  
   data-arc span      9327 days (25.54 yr)  
   first obs. used      1988-09-15  
   last obs. used      2014-03-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55086  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 19:25:37  

Additional Information
 Earth MOID = 1.74344 AU 
 T_jup = 3.165 
[ 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 13.7 mag n/a PDS3 (MPC 32180)  

9025 Polanskey           Discovered 1988 Sept. 16 by S. J. Bus at Cerro Tololo.
Carol A. Polanskey (b. 1960) is a science operations expert at the Jet Propulsion Laboratory. She led the spacecraft operations planning for the Dawn mission team that optimized the science return for the study of Vesta.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2014-07-12Last Updated: 2014-07-14

[ show close-approach data ]
Alternate Designations
 1988 SM2 = 1998 HJ34 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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