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. 

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Completed

Search by target - Name resolver

Nausicaa Delmotte 3 years ago in Search for data updated by Archive Science Group 3 years ago 1

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

Answer
Archive Science Group 3 years ago

Dear Nausicaa,
yes, indeed the name resolved used by the ESO graphical search interface is Sesame!
Cheers,

Chiara

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New version of the Archive Science Portal

Archive Science Group 2 years ago in Layout, Appearance and color scheme updated 2 years ago 1

Dear users,
we are happy to announce that a new version of the Archive Science Portal has been released and announced to the scientific community here

Based on user feedback a new view mode has been implemented as a central new feature in addition to the already existing sky view (left-hand panel of figure above). It allows users to inspect, at a glance, the multi-dimensional query space in up to seventeen 1D distributions (right-hand panel of figure). They include physical parameters like sensitivity and signal-to-noise ratio, alongside more traditional ones such as Programme ID or instrumental setup. Users can easily interact with any list or histogram to add or remove search constraints and to build up rather complex queries in a progressive fashion.  

Beyond that, the updated Archive Science Portal provides the following improvements:

  • the capability of bookmarking and sharing queries;
  • customizable set of query parameters and management of query constraints;
  • improved layout and support for mobile and touch devices;
  • several bug fixes.

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Under review

Constellation Detection

Thomas 2 weeks ago in Sky view updated by Archive Science Group 2 weeks ago 1

Hi,

I am currently making a constellation detection system for my school project, but I need to find a lot of unedited photographs of the night sky which has constellations fully in the image. Does anyone know where I could find any images like this? I'm having no luck myself.

Thanks in advance. :)

Questions
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Completed

New version of the Archive Science Portal -> V2.0

Archive Science Group 6 months ago in Layout, Appearance and color scheme updated 5 months ago 1

Dear users,

we are excited to announce that ESO Archive Science Portal has been substantially upgraded. The full list of improvement present in the new version 2.0 has been announced to the scientific community here.



Following users feedback, the updated Archive Science Portal provides (among others) the following improvements:

  • A single interface allows users to access data from La Silla Paranal, APEX ,and -now- from ALMA as well:
    Whale Galaxy
    See for instance here the ALMA footprint over the WHALE galaxy.
    These ALMA data can be retrieved also with this programmatic query:
    SELECT
    s_ra, s_dec, dp_id, instrument_name, obstech, proposal_id, obs_release_date
    FROM
    ivoa.ObsCore
    WHERE
    intersects(s_region, circle('',3.72333,-39.19667,0.3))=1 AND instrument_name='ALMA'


  • We now provide previews for datacubes, including interactive spectrum extraction:
    Muse Spectrum
    Users can now extract a quick look MUSE spectrum directly from the Archive Interface

  • Search within user defined polygons:
    Jewel Box
    For instance an user can download all the spectra of the stars in the Jewel Box cluster within a customized region. Naturally this is possible also programmatically:
    SELECT
    s_ra, s_dec, dp_id, instrument_name, obstech, proposal_id, obs_release_date
    FROM
    ivoa.ObsCore
    WHERE
    intersects(s_region, POLYGON( 'J2000', 193.15859,-60.21354,
    193.40507, -60.15885,
    193.80660, -60.21094,
    193.85447, -60.38943,
    193.61956, -60.49661,
    193.21774, -60.49711,
    193.00831, -60.43487,
    193.04188, -60.33450,
    193.03932, -60.26952) )=1 AND obstech NOT LIKE 'IMAGE%'


Feedbacks
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Completed

Extracting reduced data of M dwarfs

Anonymous 2 months ago in Search for data updated by Archive Science Group 1 week ago 1

Hi,

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!

Questions
Answer
Archive Science Group 2 months ago

Dear user,

   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!

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How can I search for data from specific ESO programme ID using ESO Science Portal interface?

Anonymous 4 months ago in Search for data updated by Archive Science Group 1 week ago 1

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?

Questions
Answer
Archive Science Group 2 months ago

Archive

Dear user,
    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 proposal_id:
    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!

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Completed

Metallicity data

Anonymous 6 months ago in Search for data updated by Archive Science Group 1 week ago 1

Hi,

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!

Questions
Answer
Archive Science Group 5 months ago

Dear user,

   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!

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Exploring the Follow up of GW events

Archive Science Group 6 months ago in Search for data updated 4 months ago 1


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.

    Feedbacks
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    Completed

    Search for targets with target name

    Anonymous 8 months ago in Search for data updated by Archive Science Group 8 months ago 1

    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.


    Thanks

    Questions
    Answer
    Archive Science Group 8 months ago

    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.

    Cheers,

    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

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    The 'create a link to this page' functionality

    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.


    Cheers,

    ASG

     

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