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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1512662088707993 5.041e-08  
a 3.237407810600544 3.959e-08 AU
q 2.747697404522285 1.7016e-07 AU
i 1.994728983570831 5.3978e-06 deg
node 139.5147565493693 0.00017606 deg
peri 174.1048938750472 0.00017754 deg
M 208.3928891410972 2.356e-05 deg
tp 2457896.507433982083
(2017-May-23.00743398)
0.00014656 JED
period 2127.622341763056
5.83
3.9028e-05
1.069e-07
d
yr
n .1692029609454494 3.1037e-09 deg/d
Q 3.727118216678803 4.5578e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      911  
   data-arc span      9790 days (26.80 yr)  
   first obs. used      1988-09-15  
   last obs. used      2015-07-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54723  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 14:26:35  

Additional Information
 Earth MOID = 1.73467 AU 
 T_jup = 3.166 
[ 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 13.8 mag n/a MPO337333  

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: 2014-08-13

[ 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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