Seismology with PICARD: first investigations P. Boumier ; T. Corbard Contribution or inputs from: T. Appourchaux,C. Dufour, C. Grec, A. Irbah, JP Marcovici, M. Meftah, M. Meissonnier, C. Renaud.

HK (August; from Mireille) Mean level: V 2 /Hz

From Header (Tccd) Orbital harmonics

Vod12-h peak

TCCD 12-h peak

FIRST LOOK AT SODIM MACROPIXEL IMAGES (N1) T. Corbard, P. Boumier, C. Grec, C. Renaud, A. Irbah, C. Dufour

Photométrie intégrée HMP N1

Zoom on 1 day

SAA vue sur la photométrie HMP N1: OBS_LAT et OBS_LON sont définis dans un repère inertiel => Il faut aller lire les fichiers journaliers d'orbites restituées WGS84

SAA: zoom et coordonnées

Diagramme l-nu HMP (3 jours)

lst --> % lst --> % lst --> % lst --> % lst --> % lst --> % lst --> % lst --> % lst --> % lst --> % lst --> % lst --> % lst --> % lst --> % lst --> % lst --> % lst --> % lst --> % lst --> % lst --> % lst --> % lst --> % lst --> % lst --> % lst --> % lst --> % lst --> % lst --> % lst --> % lst --> % lst --> % lst --> % lst --> % lst --> % lst --> % lst --> % lst --> % lst --> % lst --> % lst --> % lst --> % lst --> % lst --> % lst --> % lst --> % lst --> % lst --> % lst --> % lst --> % lst --> %

PIC_SOD_N1P_HMP_WL535_LNU_MAV_ _ _v01.fits.gz --> 3 PIC_SOD_N1P_HMP_WL535_LNU_MAV_ _ _v01.fits.gz --> 1 PIC_SOD_N1P_HMP_WL535_LNU_MAV_ _ _v01.fits.gz --> 2 PIC_SOD_N1P_HMP_WL535_LNU_MAV_ _ _v01.fits.gz --> 3 Problème avec les listes générées par le CMSP SAA not taken into account in the duty cycle: it should be !

Problème les 12, 13, 14 Novembre ?

Problème Lumière parasite LOS_ALT = -106 par ex sur des images HMP complètes ?

Limb analysis (C.Grec) N1 HL files ; - Images : not the right flat-field - Header : Rsun value was not right  - Procedure to determine Rsun - 2-D filter to estimate the positions of the inflexion points. - Fit of an ellipse to these estimates.

Elliptical fit of the inflexion points; minor and major axis

Maximal width of the inner annulus

Sun center – Mask center

Conclusions We just begin to explore the sources of photometry perturbation : need to identify all operational sequences signatures. Several calibration problems and definition of the key-words in the N1: we really NEED N0 access to be able to progress. Reprocessing ? (with the right flat-field) First l-nu diagrams: a real pleasure (first), and encouraging.

Messages for CS: - access to low level data: decision about the requests already done. -validation groups: definition and strategy. -Reprocessing: policy And a lot of work in front of us !

Actions: -HKs spectra -Check data products (Headers, time sampling/stamping …) -6-day or not in the Rsun ? -Operational visualisation (SAA…) -Recenter the HELIO mask ?