1 Global Helioseismology 1: Principles and Methods Rachel Howe, NSO.
QUICK LOOK HELIOSEISMOLOGY FOR THE CMSP Thierry Corbard Massinissa Hadjara Catherine Renaud
description
Transcript of QUICK LOOK HELIOSEISMOLOGY FOR THE CMSP Thierry Corbard Massinissa Hadjara Catherine Renaud
1Catherine RENAUD - december 4th 2008 – Nice
QUICK LOOK HELIOSEISMOLOGY
FOR THE CMSP
Thierry Corbard
Massinissa Hadjara
Catherine Renaud
Cassiopée - OCA
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Input : 2 sort of images, limb or macropixel
Macropixels: size : 256x256 cadence : 1mn
Limb : size : 2048X2048 cadence : 2mn
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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)
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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)
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CONCLUSIONStatus: beta version delivered to SA-verrières, last month. Wait for feed back from industrial…
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