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Hubble Space Telescope
WFPC2 Polarization Simulator Tool

How to use this page.

Input guess for target's polarization parameters:

Input I (intensity), f (fractional linear pol.),
PA (E-vector PA):

I = f =

PA =

Or input Stokes parameters I, Q, U, V:

I = Q =

U = V =


Give count rate per unit flux from SYNPHOT runs (optional).

Input value or leave set to zero. SYNPHOT help.

Spectral filter only:

Spectral filter + POLQ_PAR:

Spectral filter + POLQ_PERP:


Give the spectral filter used:

If using LRF filter, give wavelength (Ang.):


Give the apertures used and the PA_V3 values for each observed image.

Optionally, the measured count rate and its uncertainty may be input, and the errors and chi-square will be estimated.

First image: PA_V3 =

Obs. count rate = Uncertainty =

Second image: PA_V3 =

Obs. count rate = Uncertainty =

Third image: PA_V3 =

Obs. count rate = Uncertainty =

Fourth image: PA_V3 =

Obs. count rate = Uncertainty =

Fifth image: PA_V3 =

Obs. count rate = Uncertainty =

Sixth image: PA_V3 =

Obs. count rate = Uncertainty =