1Catherine RENAUD - december 4th 2008 – Nice

QUICK LOOK HELIOSEISMOLOGY

FOR THE CMSP

Thierry Corbard

Massinissa Hadjara

Catherine Renaud

Cassiopée - OCA

2Catherine RENAUD - december 4th 2008 – Nice

Input : 2 sort of images, limb or macropixel

Macropixels: size : 256x256 cadence : 1mn

Limb : size : 2048X2048 cadence : 2mn

3Catherine RENAUD - december 4th 2008 – Nice

Products : 5 algorithms

Suivi_phl : follow photometry on limb images (sum intensity on anuli and sectors)

Suivi_phmp : follow photometry on macropixels images (sum intensity of whole macropixels)

Suivi_DS : compute spectral density on 15 days from Suivi_phl or Suivi_phmp (from SODISM) or SOVAP datas

YLM_HMP : create temporal series for each degree from macropixels, 0<L<300 by multiplying with Yl

m masks

Suivi_lnu : compute l-ν diagram from the resulting temporal series

(3 days)

4Catherine RENAUD - december 4th 2008 – Nice

Monitoring of limb intensity in 8 sectors

pixels

pixe

ls

500 1000 1500 2000

200

400

600

800

1000

1200

1400

1600

1800

2000

X =

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inte

nsity

SECTORS photometry (CLIFF/mdizi970414.fits…)

Time (days)

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Exemple : Spectral density on 15 days from macropixels sum

Spectral density can be done on SODISM limb, macropixelsor SOVAP datas.

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ℓ- diagram Diagnostic (1)

Macro Pixel Image

X

X

X

=

=

ppm

ppm

ppm

=

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ℓ- diagram Diagnostic (2)

9Catherine RENAUD - december 4th 2008 – Nice

CONCLUSIONStatus: beta version delivered to SA-verrières, last month. Wait for feed back from industrial…

Thanks