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ALMA Science Archive
Query Help

Query Help

The tooltips that appear when you hover over the search boxes will give examples of searches, and show the unit in which to enter numerical quantities. The name resolver (SESAME) will resolve names of non-solar system objects using the SIMBAD, NED, and Vizier databases.

By default, the results of a search will be a list of publically available, raw observations of science targets. To see a project-level view, and/or prorietary data, choose the appropriate options in the lower-right box. In order to see also data from calibrator observations, select the appropriate entries from the "Scan Intent" field.

Below are a list of operators and wildcards that may be used in the search fields (apart from the name resolver field, which accepts no operators).

Numerical Operators String Operators String Wildcards Logical Operators

Equal

=

Equal

~

Any text

*

Or

|

Not Equal

!=

Exactly equal (case sensitive)

=

Any single character

?

Less than

<

Exactly equal (no wild cards)

==

Less than or equal

≤

Not equal

!~

Greater than

>

Not exactly equal (no wildcards)

!=

Greater than or equal

≥

Range

..
Position
Source name (Resolver)
Source name (Resolver)
Case-insensitive search for source name, to be resolved with Sesame.
Wildcard matching is disabled. Search is performed within a radius of 10 arcminutes.

A search radius in degrees can be added to the end separated by a comma.

Description.

Use Sesame (via. NED, Simbad and VizieR) to parse names commonly found throughout literature. A green tick indicates a successful search, otherwise, a red cross is returned.


Example

Cen A

NGC3375

ARP220, 20

No tooltip information is available
Source name (ALMA)
Source name (ALMA)
ALMA source name.

Description
Name of the source as registered in the ASDM. Partial matches through wildcards (?, *), and boolean OR expressions ("|"), can be used.

Example

GRB021004

"R Scl"

RA Dec
RA Dec
Right Ascension, Declination

Description
RA and Dec may be expressed in sexagesimal, with colon-separated hours:minutes:seconds degrees:minutes:seconds, or in decimal degrees. A range may also be specified using the operators listed under Query Help. A search radius in degrees can be added to the end separated by a comma. The default search radius is 10 arcminutes.

Unit
Sexagesimal

Example

12:13:14.0 -00:01:02.1

12:13:14.0 -00:01:02.1, 20

181.0192 -0.01928

181.0192 -0.01928, 30

181..185 >-0.1928

12:13:14.0 0..40

Galactic
Galactic
Galactic longitude, Galactic latitude

Description
Galactic longitude and Galactic latitude is expressed in decimal degrees. A range may also be specified using the operators listed under Query Help. A search radius in degrees can be added to the end separated by a comma. The default search radius is 10 arcminutes.

Unit
Degrees

Example

282.6886 61.3438

282.6886 61.3438, 20

279.6748 60.5353

279.6748 60.5353, 30

279.7618..287.6429 >60.3661

284.1245 0..40

Target list
File upload
Option to allow the use of a user-prepared text file for multi-positional searches.

Description
A text file with target names or positions can be loaded onto the server and the query is executed for each of them in turn. Constraints in the other input fields are taken into account.
Each target must be placed on a separate line, coordinate values must be separated by a tab or space(s).

Example


Example text file with the content

M87

12:30:31.25 12:25:26.9

187.630187836999994 12.4241224771999992

Angular resolution
Angular resolution
Average spatial resolution of the observation in arcsec.

Description
Average of the maximum and minimum spatial resolution values of all spectral windows.

Unit
arcsec
Largest angular scale
Largest angular scale
Largest scale on which features can be resolved reliably.

Description
Due to the fact that radio antennas can not be placed infinitely close, measurements do have a smallest separation which translates into a maximal angular distance beyond which features can not be resolved reliably any more. Adding observations with the ALMA Total Power array can add those missing largest scales.

Unit
arcsec

Example

< 5

100 .. 200

Field of view
Field of view
Estimated field of view (arcsec).

Description
Field of view (arcsec). Estimated from the frequency and antennas

Unit
arcsec
Energy
Frequency
Frequency
Reference sky frequency.

Description
Observed (tuned) reference frequency on the sky.

Unit
GHz

Example

>100

<300

100 .. 300

!(100 .. 300)

100 .. 300 | 600 .. 900

Bandwidth
Bandwidth
Total bandwidth.

Description
Total Bandwidth

Unit
GHz

Example

1.2 .. 2.5

>2.5

<1.2

<1.2 | >4.0

Spectral resolution
Spectral resolution
Estimated frequency resolution (in kHz).

Description
Estimated frequency resolution from all the spectral windows, using median values of channel widths.

Unit
kHz

Example

<70

>1e6

2e6 .. 3e6

Band
Band
Band

Description
Space delimited list of bands
Time
Observation date
Observation date
Field integration start timestamp.

Description
Start time of the first integration on the field.

Example

>01-01-2011

<31-12-2011

01-01-2011 .. 01-02-2011

Integration time
Integration time
Total field integration time.

Description
Aggregated integration time for the field in the ASDM.

Unit
s

Example

>12.5

<30

30 .. 60

!(1 .. 300)
Polarisation
Polarisation type
Polarisation type
Polarisation products.

Description
Polarisation products provided.
Observation
Line sensitivity (10 km/s)
Line sensitivity (10 km/s)
Estimated noise for a 10km/s bandwidth.

Description
Estimated noise in an nominal 10km/s bandwidth. Note this is an indication only, it does not include the effects of flagging or Hanning smoothing, and a 10km/s bandwidth may not be achievable with the data as taken.

Unit
mJy/beam

Example

< 2

Continuum sensitivity
Continuum sensitivity
Estimated noise in the aggregated continuum bandwidth.

Description
Estimated noise in the aggregated continuum bandwidth. Note this is an indication only, it does not include the effects of flagging or dynamic range limitations.

Unit
mJy/beam

Example

< 0.5

Water vapour
Water vapour
Estimated precipitable water vapour (in mm).

Description
Estimated precipitable water vapour from the XML_CALWVR_ENTITIES table.

Unit
mm

Example

!null

<0.5|null

< 0.49 | >55.5
Project
Project code
Project code
Project code.

Description
Project code, in the form YYYY.C.NNNNN.AAA, where:

Example

2011.0.00010.S

2012.*

*.A.*

(2012* | 2013*)

Project title
Project Title
ALMA Project Title

Description
Case-insensitive search over the project title

Example

*GALAXY*

*?ebula*

PI name
PI Full Name
ALMA PI name

Description
case-insensitive partial match over the full PI name. Wildcards can be used

Example

Smith, Fred

SMI*

fr?d

Proposal authors
Proposal authors
Full name of CoIs.

Description
Full name of CoIs .
Project abstract
Project abstract
Abstract text as submitted by the PI.

Description
Text search on the proposal abstract. Only abstracts will be returned which contain the given text. The search is case-insensitive.

Example

hydrogen fluoride

clusters of galaxies

Publication count
Pub
Number of publications

Description
The number of publications that make use of data of this project. Can be used to find unpublished data.

Example

0

> 10

Science keyword
Science keyword
Keywords describing the science of the project

Description
One or two keywords per project as selected by the PI upon proposal submission.
Publication
Bibcode
Bibcode
Bibcode

Description
Bibliography code
Title
Publication Title
Publication title

Description
Case insensitive search through the title of the publication.

Example

solar mass

First author
First author
First author of the publication.

Description
The first author as provided by telbib.eso.org

Example

Carpenter, John M.

Authors
Authors
Publication authors

Description
Full list of first author and all co-authors.

Example

Cox

Corder | Nyman

Abstract
Publication Abstract
Publication abstract

Description
Case insensitive text search through the abstract of the publication.

Example

maser

Year
Year
Year of the publication.

Description
The year the publication did appear in the printed version of the refereed journal.

Example

2016

2015
Options
View:
Results View
Select if the results should be displayed per observation, project, or publication.

Description
Per default the search results are displayed so that one row of the results table corresponds to one observation in the raw data. If you are only interested in a list of projects that match the search criteria, select here the project option.
Data type
Per default only publicly available data is shown. If you also want to see proprietary data, uncheck this checkbox.

Description
ALMA data is protected by a proprietary period of usually 12 months. Per default only those data that have gone out of their proprietary period are shown in the Results Table. If you are a PI and are looking for your own data, if the PI has delegated the access of their data to you, if you want to see which data has been observed or if you want to see which data is becoming public when, please uncheck this checkbox.
Observation type
Per default only science sources are shown. If you also want to see the calibration sources, uncheck this checkbox.

Description
Scan intent list for the observed field.
Close Viewer Results Bookmark Export Table Results Help

Export Table

To download the results table, click on one of the links below:

Results Help

Query results appear on this page. If the "observation" view was selected, there is one entry per observation of each source. This means that for a given project several rows are typically displayed for the same source, as are individual mosaic pointings. The "project" view will contain one row per project data delivery.

Columns in the results table may be sorted by clicking on the column header cell and filtered by entering a filter value in the box below each column heading. The "More columns" link at the top-right of the results table allows the display of further metadata columns. Select the rows you are interested in and click the "Submit download request" button. This will identify the data deliveries that contain the selected data and offer them for download through the ALMA Request Handler.

Below are a list of operators that may be used in the filter boxes.

Numerical Operators String Operators String Wildcards Logical Operators

Equal

(Default)

Equal

(Default)

Any text

*

Or

|

Not Equal

!

Less than

<

Less than or equal

≤

Greater than

>

Range

..

Results Bookmark

The current search including all search constraints, the visible columns, their order, sorting ftate can be accessed through the following link.

Your search did not return any results.


Note that:

If you are looking for data that is still in its proprietary period, make sure to uncheck the "public data only" checkbox.

If you are looking for data from calibrator observations, make sure to uncheck the "science observations only" checkbox.