Quality control of multiwavelength surveys published in the VO

Gijs Verdoes Kleijn

&

Andrey Belikov

NOVA/OmegaCEN/Kapteyn Institute

Groningen, The Netherlands

Quality control of multiwavelength surveys published in the VO

Gijs Verdoes Kleijn

&

Andrey Belikov

NOVA/OmegaCEN/Kapteyn Institute

Groningen, The Netherlands

To follow up instead of repeating yesterday’s round table discussion…

Access toQuality control of opt/ir imaging

published in the VO

Examples

of

current access

to

quality control

performed by creators

of

publicly available data

Refereed papers

•QC information:•Very thorough…potentially•Very un-standardized•Often most important (but fairly high-level)

README.txt

•QC information:•Thorough nitty-gritty details•Very un-standardized•Close to data itself

On-line data repositories

•QC information:•Linking data exploration→ QC•Very un-standardized

Access to QC info via VO

Uniformize way of access (also look&feel) Link from data to already available QC info

wherever possible Standardize only the easy standardizable

(small) fraction Description (“metadata) is zero order quality

info Description data itself Description data derivation

In VOExplorer/Astroscope

In Aladin

?

In VO registry

?

Access to QC info via VO

Uniformize way of access Link from data to already available QC info

wherever possible Standardize only the standardizable (small)

fraction Description (“metadata) is zero order quality

info Description data itself Description data derivation

An example of public access to description of

DATA DATA DERIVATION QC

A single but federated environment to calibrate, archive and disseminate astronomical imaging

Brazil

Extreme backward chaining

Extreme backward chaining

•Astro-WISE stores:• Data descriptionData derivation description

•Publicly available for public data

Extreme backward chaining

This also publicly available for public data…..idem for next slides

Quality View : bundling QC parameters from database

Quality View cont.

Quality View cont.

Quality View cont

Astro-WISE publishes to VO

From Aladin to QualityWISEwork in progress….

From Aladin to Quality-WISE

Conclusions

0th order Quality Control =description data+its derivation

Astro-WISE links description data & its derivation & its QC to the VO

Want to know more about Astro-WISE?

http://www.astro-wise.org www.astro-wise.org/Public/

published_versionEN65_astrowise_only.pdf www.astro-wise.org/Public/2007ASPC..376..491V.pdf