Optical Infrared Coordination Network for Astronomy

Horizon 2020

OPTICON H2020 Virtual Access

The nationally operated observatories which provide OPTICON TNA have, almost without exception, automatic archiving of data which becomes public after a defined proprietary period (usually 12 months except in special circumstances such as long term programmes). Such data, and its appropriate metadata is usually made available at zero cost to potential virtual users in a long term, sustainable way. The small number of TNA facilities which do not have automatic open archiving have agreed to provide raw data from OPTICON supported observing on demand. Data archive policies and access details are provided in this section via links to the appropriate archive sites. The OPTICON project does not operate these archives itself, and so questions and problems should be sent directly to the appropriate archive manager. However, please inform us if the links below seem not to work for any length of time.

Virtual Access
Telescope Details
NOT Logo

Nordic Optical Telescope (NOT)

Raw and reduced data is all archived and is mostly accessible on-line. Scientific data in the archive can be found using the FITS-header archive, and subsequently requested as individual FITS files directly using a web interface. There is a 1-year proprietary period imposed on the scientific data


http://www.not.iac.es/archive/ gives various links to specific items or Go straight to the archive search engine here http://www.not.iac.es/observing/forms/fitsarchive/

ING Logo

Isaac Newton Group (WHT and INT telescopes, also JKT)

A catalogue contains all of the existing data from the Isaac Newton Group of telescopes on La Palma. These consist of the 4.2m William Herschel Telescope, the 2.5m Isaac Newton Telescope and the 1.0m Jacobus Kapteyn Telescope.


Data can be searched via this link http://casu.ast.cam.ac.uk/casuadc/ingarch/query.

An appropriate query will produce a list of frames matching that request. It is then possible to, select from list and click to download the data. A link to an automatically created web address will be sent and the data can then be downloaded via ftp. A one year proprietary period applies.

AAO Logo

Anglo Australian Telescope (AAT)

There is a comprehensive archive service for AAT and the UK Schmidt Telescope here: https://www.aao.gov.au/science/aat-data-archive this is hosted at ‘Data central’ https://datacentral.org.au/ There is normally an 18 month proprietary period


Centro Astronómico Hispano en Andalucía (CAHA) Calar Alto

All data from open time observations become public after a 1 year propriety period. Data is available, following Virtual Observatory standards, through the CAHA archive at: http://caha.sdc.cab.inta-csic.es/calto/ It is possible to enter a query which will return a list of observations and then on this list click to download the data. Specific survey projects, eg Alhambra and Califa, also have dedicated archives available from that link.

OHP Logo

Observatoire de Huat Provence. (OHP) 1.93m

There is a searchable archive here http://www.obs-hp.fr/archives.shtml. It is possible to select an instrument (the top heading for each instrument is a clickable link) and enter a query based on co-ordinates or name. This will generate a set of commands to wget the data. It is then possible to run wget and the data is downloaded to your disk.

Pic du Midi Logo

Telescope Bernard Lyot (TBL). Pic du Midi Observatory


Only pipeline reduced data is openly available. Raw data must be requested direct form the TBL team. There is a service called Polarbase here http://polarbase.irap.omp.eu/ at which a user can enter a query based on co-ordinates, instrument and name. This returns a list of observations which can be clicked to download a Zip file.

This service also works for CFHT plus the Espadons instrument.

Liverpool Telescope Logo

Liverpool Telescope (LT)

There is a searchable data archive which is the main repository for long term storage of ALL reduced LT data. There is currently no time limit on storage. This contains all reduced LT data taken since September 2004. It contains those data which have been through the automated reduction pipelines. For instruments where no pipeline is currently in operation, alternative temporary measures may be in place to provide the data to users. Data usually remain proprietary to the PI for one year after the end of the semester within which the data were acquired. Formal rules are defined by the LT's data access policy. http://telescope.livjm.ac.uk/DataProd/

The link at https://telescope.livjm.ac.uk/cgi-bin/lt_search allows users to enter a query which will generate a list of observations which can be downloaded by clicking on that observation. Various tarball options are also available.

TNG Logo

Telescopio Nationale Galileo (TNG)

The INAF Centre for Astronomical Archives (IA2) facility contains all data from the TNG telescope


The facility, which is operated by INAF staff, provides access to those data for the Italian and International user community. The Principal Investigators of successful proposals for time on the TNG-REM-LBT telescopes have exclusive access to their scientific data for a duration of a proprietary period. At the end of the proprietary period the data are be placed in the public partition of the IA2 archive, together with the abstract of the related proposal for observing time.

The TNG archives homepage is at https://ia2.inaf.it/index.php/ia2-services/archives/inaf-archvies-2/inaf-archvies-4 with a link to TNG search form at http://archives.ia2.inaf.it/tng/faces/search.xhtml This provides a searchable archive which will give a list of observations. Those of interest can be selected and a tarfile is created. Click to download the tarfile. The archives home page also links to other telescopes such as LBT and Asiago

REM Logo

Rapid Eye Mount Telescope (REM)

For REM http://ross.iasfbo.inaf.it/REMDBdev/public.php provides a public archive which is searchable via a query form. It is then possible to click and download gzip images. For the REM telescope the duration of the proprietary period is normally 12 months after the end of semester once the data has been made available to the PI.

IAC Logo

Telescopio Carlos Sanchez

This small telescope does not have an open archive but all the data taken is saved. Data can be requested via direct contact with the observatory director. The observatory is developing software to have open access online, but currently it is only available for the IAC80 telescope.



Aristarchos Telescope

Observations made as part of the OPTICON TNA programme are archived at this location:


CFH Logo

Canada France Hawaii Telescopes (CFHT)

The CFHT Science Archive provides access to observations obtained with the Canada-France-Hawaii Telescope (CFHT) on Mauna Kea, Hawaii.

It can be found at http://www.cadc-ccda.hia-iha.nrc-cnrc.gc.ca/en/cfht/

Observations can be queried by various criteria such as object name, position and RunID and then the data can be retrieved. The proprietary period for CFHT data is typically 13 months after the end of the semester of the observation.

Raw and calibrated science observations and calibrations for CFHT observations as well as access to stacked data products can be found by searching various data collections:

CFHT : Raw data and data processed at CFHT
CFHTMEGAPIPE : MegaPrime data stacked at CADC
CFHTTERAPIX : MegaPrime and WIRCAM data stacked at Terapix

Also the service called Polarbase here http://polarbase.irap.omp.eu/ at which a user can enter a query based on co-ordinates, instrument and name. This returns a list of observations which can be clicked to download a Zip file for CFHT plus the Espadons instrument.

LCO Logo

Las Cumbres Observatory (LCO)

All data from science imagers on the 1-metre network and 2-metre data taken since 1 April 2014 (and on the 0.4-metre network from 1 April 2016) can be found in the project archive, which is hosted here https://archive.lco.global/ . Entering a query will generate list of observations, clicking on an item in list makes it possible to download the data. Data from science programmes can be read only by authorized users during a proprietary period which defaults to one year; data owners may also choose a shorter period, or to waive the proprietary period.

La Silla Logo

MPG 2.2m La Silla

Access to the data is via the ESO science archive here http://archive.eso.org/cms.html