CAHA Public Archives

       From 2008 the German-Spanish Astronomical Centre (CAHA) and the Centre for Astrobiology (CAB, dependent on the Spanish Higher Council for Scientific Research, CSIC, and the National Institute for Aerospace Technology, INTA) have been designing, developing and implementing all the infrastructure needed for such a demanding service as a scientific data archiving system.

      Calar Alto archives will make the data universally accessible after the initial reserve period for the authors of the observing proposals. This means that all the society (and not only professional astronomers, but also researchers from other fields, amateur astronomers, educators and general public) will be able to use the deep richness produced thanks to the exceptional sky and the outstanding telescopes and instruments of Calar Alto.

      The system is made from two pieces, one placed at the Observatory itself and another located at CAB.

      The staff of the German-Spanish Astronomical Centre has fully developed the system placed at Calar Alto. This archive gets the images, put them at CAB disposal, and offers all publicable images (without a previous advanced processing) to all the society through the next link:



      The system placed at the Center for Astrobiology performs a series of tasks on the observational data to guarantee  they satisfy  all the requirements of the Virtual Observatory standards (VO). These data are accessible by all the society following the next link:

archive teaser

       The project has been partially funded by the Ministery for Science and Education through the R+D+i 2008-2009 National Plan, and through the National Plan for Singular Scientific-Technical Facilities (ICTS).

Proprietary period of the data and acknowledgements to SVO

Proprietary period: All observing data from open time programs will be made public through the Spanish Virtual Observatory (SVO) after a proprietary period of ONE (1) year after the end of the observations. DDT data are publicly available after three months.

Acknowledgements: We kindly remind you to include the following acknowledgements if you are using data from any CAHA telescope & instrument archived at SVO:This research has made use of the Spanish Virtual Observatory ( supported by the MINECO/FEDER through grant AyA2017-84089.7




      Additionally, the Calar Alto Legacy Integral Field Area (CALIFA) survey explored the full optical extension of 667 galaxies (in CALIFA DR3) in the Local Universe using PMAS/PPAK at the 3.5m of Calar Alto. Currently it has delivered the third Data Release (11th of April 2016), that comprises 100 objects, observed in two setups (V500 and V1200). For more details on these data and how to access them visit the CALIFA webpage.