PICARD PREMOS source notes

Date: 2026-06-04

Project metadata endpoint:
- http://idoc-picard.ias.u-psud.fr/sitools/portal/projects/Picard
- sitoolsAttachementForUsers: /aa6baaff-87c1-4298-948a-5dc72c94e457

Dataset listing endpoint:
- http://idoc-picard.ias.u-psud.fr/aa6baaff-87c1-4298-948a-5dc72c94e457/datasets?start=0&limit=500&media=json

PREMOS datasets discovered:
- PREMOS -Data -N1 Data -> /premosn1
- PREMOS -Data -N2A Data -> /premosn2a

Record endpoints verified:
- http://idoc-picard.ias.u-psud.fr/premosn1/records?media=json&limit=2
- http://idoc-picard.ias.u-psud.fr/premosn2a/records?media=json&limit=2

Sample file download (verified FITS content):
- URL: http://idoc-picard.ias.u-psud.fr/sitools/datastorage/user/storagefits/products/premos/n2/tsi/PIC_PRE_N2A_TSI_20100922_v01.fits.1.gz
- Local file: tsi_raw/picard_premos/raw/PIC_PRE_N2A_TSI_20100922_v01.fits.1.gz
- Validation: gzip payload opens and starts with FITS header "SIMPLE  =                    T"

Full N2A TSI acquisition and processing:
- Records discovered from `/premosn2a`: 1270 files with `_TSI_` in filename
- Downloaded raw files: `tsi_raw/picard_premos/raw/PIC_PRE_N2A_TSI_*.fits.*.gz` (1270 files)
- Builder script: `build_picard_premos_tsi_chart.py`
- Output chart: `tsi_satellite_sources/picard_premos_tsi_daily_monthly_annual.png`
- Output CSV: `tsi_satellite_sources/picard_premos_tsi_daily.csv`
- Output manifest: `tsi_satellite_sources/picard_premos_tsi_manifest.txt`
- Final parsed daily span: 2010-09-22 to 2014-03-04 (1190 daily rows)

SOVAP note:
- SOVAP was not present in the discovered dataset list from this PICARD instance.