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: 10-4 V2/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

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)

2010-09-22.lst --> 24.58 %2010-09-23.lst --> 60.42 %2010-09-24.lst --> 73.19 %2010-09-25.lst --> 74.10 %2010-09-26.lst --> 85.69 %2010-09-27.lst --> 64.24 %2010-09-28.lst --> 10.69 %2010-09-29.lst --> 75.00 %2010-09-30.lst --> 10.62 %

2010-10-01.lst --> 74.93 %2010-10-02.lst --> 85.62 %2010-10-03.lst --> 85.56 %2010-10-04.lst --> 85.49 %2010-10-05.lst --> 83.12 %2010-10-06.lst --> 71.74 %2010-10-07.lst --> 10.56 %2010-10-09.lst --> 75.21 %2010-10-10.lst --> 85.62 %2010-10-11.lst --> 81.25 %2010-10-12.lst --> 85.62 %2010-10-13.lst --> 85.83 %2010-10-14.lst --> 85.42 %2010-10-15.lst --> 73.96 %2010-10-16.lst --> 85.00 %2010-10-17.lst --> 85.69 %2010-10-18.lst --> 85.56 %2010-10-19.lst --> 29.24 %2010-10-20.lst --> 85.69 %2010-10-21.lst --> 85.76 %2010-10-22.lst --> 85.35 %2010-10-23.lst --> 85.97 %2010-10-24.lst --> 85.62 %2010-10-25.lst --> 85.62 %2010-10-26.lst --> 10.83 %2010-10-27.lst --> 74.86 %2010-10-28.lst --> 85.56 %2010-10-29.lst --> 85.56 %2010-10-30.lst --> 83.68 %2010-10-31.lst --> 78.54 %

2010-10-31.lst --> 78.54 %2010-11-01.lst --> 83.61 %2010-11-02.lst --> 85.62 %2010-11-03.lst --> 77.78 %2010-11-04.lst --> 85.62 %2010-11-05.lst --> 85.56 %2010-11-06.lst --> 85.83 %2010-11-07.lst --> 85.62 %2010-11-08.lst --> 85.76 %2010-11-09.lst --> 71.74 %2010-11-10.lst --> 78.54 %2010-11-13.lst --> 77.92 %

PIC_SOD_N1P_HMP_WL535_LNU_MAV_20101028_20101030_v01.fits.gz --> 3PIC_SOD_N1P_HMP_WL535_LNU_MAV_20101031_20101102_v01.fits.gz --> 1PIC_SOD_N1P_HMP_WL535_LNU_MAV_20101103_20101105_v01.fits.gz --> 2PIC_SOD_N1P_HMP_WL535_LNU_MAV_20101106_20101108_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 ?