1 / 15

VISTA/WFCAM pipelines

VISTA/WFCAM pipelines. summit pipeline : real time DQC verified raw product to Garching standard pipeline : instrumental signature removal, catalogue production, astrometric and photometric calibration

elpida
Download Presentation

VISTA/WFCAM pipelines

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. VISTA/WFCAM pipelines • summitpipeline: real time DQC verified raw product to Garching • standardpipeline: instrumental signature removal, catalogue production, astrometric and photometric calibration • furtherprocessing: generate well sampled PSF, PSF and Sersic profile fitting • advancedpipeline: database driven, deep stacking and mosaicing, merging catalogues, list driven photometry, overlap calibration

  2. tapes disks internet WFAU

  3. Technicalchallenges • non-linearity calibration and measurement • cross-talk between channels and detectors • image persistence from frame-to-frame • sky level variations on short timescales • rapid variability of OH fringing • seeing variations on short timescales • possible time varying flatfield characteristics • calibration and extinction monitoring • data volume and throughput • robust automatic DQC measures

  4. Progress • work package spreadsheets and timelines • instigated regular minuted meetings with actions • provisional ICDs with JAC and WFAU agreed • FITS header definition and test MEF data processed • automated DQC monitoring developed • pipeline monitoring tools with web interface • programming completed for all basic modules • ORAC-DR test routines for UFTI delivered and installed • software module development for standard pipeline on target • good progress with VDFS documentation for PDR

  5. user manuals written for development pipeline/toolkits • Bad pixel monitoring, mask generating, confidence maps • difference imaging software developed • simulations and completeness tests done • prototype list-driven photometry package written and tested • devised general purpose stacking/mosaicing framework • NN stacking algorithm with simple rejection completed • large area mosaicing algorithm developed • automated astrometric and photometric calibration • astrometric and photometric distortion for WFCAM and VISTA quantified

  6. Processingtools/pipelines • INT Wide Field Camera (4 x 2k x 4k) • ESO WFI on 2.2m at La Silla (8 x 2k x4k) • KPNO and CTIO Mosaic1,2 4m (8 x 2k x 4k) • WFI on AAT (8 x 2k x 4k) • CFHT 12k imager (12 x 2k x 4k) • CIRSI mosaic on INT/DuPont (4 x 1k x 1k) • INGRID on WHT (1k x 1k) • UFTI on UKIRT (1k x 1k) • ISAAC on VLT (1k x 1k) ****

  7. CASUtechnicalexpertise • real time analysis and discovery • photometry and photometric system calibration • astrometry and astrometric system calibration • data modelling and simulations • archiving and DB management Sybase, PostgresQL, SQL-Server • data management and processing

More Related