DARTS/Astro Query System
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Welcome to the DARTS/Astro Query System
The DARTS/Astro Query System enables you to search for observation data, logs, proposals, etc., which are publicly available in DARTS/Astro. You can search for various data from different satellites such as AKARI, SUZAKU, ASCA, GINGA, HALCA, etc. at once on the same platform.
The following three search methods are available in the DARTS/Astro Query System:
- Basic Search
Circular search around an input celestial location, as is common in many astronomical databases. Users input both the search location and the radius.
Basic Search can search for all the data in the database at a time.
For the datasets whose "observation regions" or "fields of view" are defined, the DARTS/Astro Query System returns the lists of the datasets whose observation regions overlap the input circular area. For the definition of the "observation region" of each data product, please refer to User's Guide 〉〉 How to use BasicSearch 〉〉 Judgement of overlapping.
- SQL Search and ADQL Search
- You can search by directly inputing SQL or ADQL statements. It is possible to customize your own search conditions, and sort the outputs as you like. You can reproduce exactly the same searches which were available in the previous satellite/instrument specific DARTS Astro search systems. For details, please refer to User's guide 〉〉 Migration Guide.
* ADQL (defined byIVOA) is an extention of SQL where popular astronomical functions are implemented. Using ADQL, you can efficiently search for astronomical data in various situations specific in astronomical study.
In DARTS/Astro Query System, we regeister all the available data products into the database. Sending a query to the database, you can find the data you need. Please find the following for the list of all the data products searchable in the DARTS/Astro Query System:
A single satellite/project may have several kinds of data products. We make a single database-table for each kind of data product. Below, we explain all the database items of all the tables. You may carry out the SQL Search or ADQL Search based on these database items:
Functions of the DARTS/Astro search system and details of the searchable data, as well as methods to migrate from the previous DARTS/Astro query system, are explained in the user-guides below:
- How to use "Basic Search"
- How to use "SQL Search" and "ADQL Search"
- Transition from the previous query system