ARCHIVE SCIENCE PORTAL
With the new, interactive Archive Science Portal it is possible to access the ESO science archive, the collection and distribution point of the data from the La Silla Paranal Observatory.
Leave us your feedback on the graphical appearance of the Search Interface and help us in improving its layout and usability. Ask us questions or give us comments on the search/visualization/retrieval of Phase3 archive data.
I'm starting a new topic. What is the name resolver being used by the graphical search interface?
Is it Sesame at http://cds.u-strasbg.fr/cgi-bin/Sesame
yes, indeed the name resolved used by the ESO graphical search interface is Sesame!
We would like to stress the power of the new version of the archive science portal for detecting electromagnetic counterpart of gravitational wave detections. For instance, you can easily search for all data present in the archive associated to the irregular 50% confidence contours for the location of the GW superevent s191205ah: Polygon-1, Polygon-2, and Polygon-3.
The procedure followed to obtain the results above is described in our Jupyter notebook. Where you can also find some useful tools to explore the archive science portal and to unleash the full power of the programmatic access. You can find more notebooks here.
I would need to find flux callibrated spectra in absolute units but it is not clear to me how to query the archive by this condition.
Thank you very much in advance for your help.
I'm working on the X-Shooter library and M dwarfs. I'm trying to extract the reduced data of M dwarfs resolved by X-Shooter using a list of M dwarfs obtained from SIMBAD. The stars range from M0V-M9.5V. Is there an easy way of doing this programmatically? The list contains many stars that are not resolved by X-Shooter too so it will have to only extract the ones that are present in the ESO archive. I have been downloading the files manually from the website but it has an upper limit of 1000 items per list which has prevented me from using lists containing more than 1000 stars. I would also like to know if there is a way to go around this limit programmatically as well as on the website.
many thanks for using the ESO archive system!
To access to XSHOOTER data programmatically you can use a query similar to this one:
SELECT target_name, dp_id, s_ra, s_dec, t_exptime, em_min, em_max, dataproduct_type, instrument_name, obstech, abmaglim, proposal_id, obs_collection FROM ivoa.ObsCore WHERE (INTERSECTS(CIRCLE('ICRS',109.66824871,-24.55869773,5./3600), s_region)=1 OR INTERSECTS(CIRCLE('ICRS',279.729582,6.27016,5./3600), s_region)=1 ) AND instrument_name LIKE 'XSHOO%'
where you can include a list of INTERSECTS conditions connected with the OR logic (see these HOWTOs for further details). With this, however, you will still hit a limit in the number of objects to be queried. This is due to the maximum length of the url that could be sent to the TAP service.
It is not possible to overcome the 1000 object limit in the Archive Science Portal. If splitting your list in groups containing <1000 items each is not an option for you, an alternative can be found in this forum page. Here with provide a walk-through on how to get data given a list of star names with python. This requires the installation of the unofficial ESOAsg python package.
Enjoy your data!
I know that specific dataset has been generated from a given Programme ID. I see that Program Id is a selectable item, but the list of available options for X-SHOOTER is way too long to find the right one. Is there a way to type it somewhere in the interface?
many thanks for using the Archive Science Portal! There are 3 ways to solve your problem:
- You can expand the Query Parameter column in the Archive Science Portal (see figure on the right). From this you will be able to perform a more refined search for a given parameter. This is done by clicking on the little show input form arrow below each panel.
- Alternatively, you can insert the ProgId you are interested in into the ESO XSHOOTER instrument specific query form.
- Finally, you can also run a TAP query where you select
instrument_name='XSHOOTER'and your favourite
SELECT target_name, dp_id, s_ra, s_dec, t_exptime, em_min, em_max, dataproduct_type, instrument_name, obstech, proposal_id, obs_collection, access_url FROM ivoa.ObsCore WHERE proposal_id LIKE '084.B-0869%' AND instrument_name='XSHOOTER'
Please let us know if this answer your question! and enjoy your data!
first of all thank you very much for your awesome work.
I'm new to this data retrieval system and I feel kind of lost in front of it. I'm looking for metallicity data (in particular the [Fe/H] ratio) in the Milky Way bulge: how can I query the various databases for such data?
Thank you very much again!
many thanks for your question.
We suggest you to explore our catalogue facility: https://www.eso.org/qi/ where the content of all catalogues currently in the ESO archive is described. Reading your question, it seems that you may be interested in GAIAESO and AMBRE (but please check thoroughly that this is indeed the case and if there are other surveys that may cover your scientific interest).
To access the content of the catalogue and to download the corresponding data, we provide a variety of options. For instance for GAIAESO you can:
- query the Archive Science Portal for GAIAESO here;
- directly explore the different columns of the catalogue here;
- have access the data programmatically here;
- use the phase3 page dedicated to the collection here.
Please let us know if this satisfy your request and/or if you would like to have further assistance.
Best regards from the Archive Science Group!
it is not much clear how to search for a target. I tried to look for Sedna spectra, I tried typing Sedna, SEDNA, 90377 Sedna, 90377 SEDNA, and all the possible combinations on upper case, lower case, numbers, with spaces, without spaces, ecc, but I can't get any result. What am i doing wrong? I wasn't neither able to find an instruction page.
Dear anonymous user,
thanks for your message and for using the Forum :)
The problem seems to be that there are no reduced products available for Sedna. In fact, also the search for coordinates (03:52:37 +07:58:18) produces no result.
There are a few FORS2/ISAAC observations of SEDNA in the raw data query form (pull-down menu selection in the green area=> "search by OBJECT FITS keyword", or input "sedna" in the "title" field of the pink area)
Finally, there are also external services like the "Solar System Object Image Search" at CADC that is scanning, among many others, some of the ESO image data collections (*) and returning lists of datasets containing potential observations of the SSOs. This service even provides links to the ESO archive for data download. I found 302 matching images (WFI, EFOSC, ISAAC, FORS).
I hope this helps, but please do not hesitate to write us if you still have doubts or problems.
Chiara (on behalf of ASG)
PS In the Archive Portal, if you put your mouse arrow on the target window, a small facet with instructions will appear automatically and explain what kind of input is accepted and in which format.
(*) ESO-LaSilla_2.2m/WFI ESO-NTT/EFOSC ESO-NTT/EMMI ESO-NTT/SOFI ESO-NTT/SUSI ESO-NTT/SUSI2 ESO-VISTA/VIRCAM ESO-VLT/FORS1 ESO-VLT/FORS2 ESO-VLT/HAWKI ESO-VLT/ISAAC ESO-VLT/NAOS-CONICA ESO-VLT/VIMOS ESO-VST/OMEGACAM
Dear Archive Science Portal users,
thanks to an anonymous user, we just discovered that there is a small bug with the 'create a link to this page' button.
In fact, when one uses this functionality to create a link to a search around given coordinates (with any other constraints),
the link erroneously points to null coordinates instead.
We are already working to solve this. Meanwhile, a smart and quick way around that allows one to get back the right query via the generated link is to click on the red, curved arrow below the coordinate windows and on the right side of the FoV (see attached screenshot).
After clicking, you will see that your research will point to the right coordinates (and have all the other constraints).
Many thanks to the anonymous user who spotted this bug.
We are looking into the problem already and will report here any updates.
this is the first time I use the Archive Science Portal...
I would like to select all the spectra observed so far with XSHOOTER, is this possible? And if instead I want to search only for data taken under my program (of which I am the PI)? Even more complicated...if I would like to check the seeing and weather conditions at the telescope when the data were taken?
Thanks a lot,
thanks for your question and for using our ASP...
Yes it is possible to select data taken with a given telescope, you will need to go on the top left corner on your screen and manage the query parameters, as I am showing in the following screenshot.
When clicking on the button, a new menu will pop up:
As you can see, only the first six show up by default but from here you can select a series of other useful searching parameters. , including e.g., the instrument, the Data Collection, The PI, etc.etc.
These will then appear on the left side menu and you will be then able to choose what you wish (e.g. all the X-Shooter spectra or only these belonging to your program).
Concerning your second question, you can do that programmatically ;)
Have a look at this page: http://archive.eso.org/programmatic/#TAP ... here we provide very useful example and demo on how to retrive weather information on a given date or select objects with specific characteristics (like e.g. seeing or FHWM).
I hope this helps!
Please do not hesitate to reply to this message if you need more clarifications.
Chiara, on behalf of ASG
Customer support service by UserEcho