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Catalog Search

Basic

BabyGator
provides easy access to IRSA's most popular catalogs.

General

Gator
supports general queries of all source catalogs curated at IRSA.

Image Services

Finder
Charts

FinderChart
is a visualization tool to cross-compare 2MASS, DSS and SDSS image data
sets. It displays a finder chart showing the same region of the sky at
various wavelengths and epochs, and supports user interaction with the
images.

2MASS
Images

The
2MASS Image Services support access to the 2MASS Atlas (Full
Resolution) and Quicklook images.

2MASS
Ext. Srcs.

The
2MASS Extended Source Image Server returns composite "postage stamp"
images of extended sources, and basic extended source catalog
information.

Mosaics

On-request mosaics
of 2MASS, SDSS, and DSS.

Cutouts

Returns
small "cutouts" of a user-specified size of image data sets archived at
IRSA. Returns FITS and JPEG formats.

Inventories

Data
Discovery

RADAR
is an inventory and data exploration service that generates an inventory of
IRSA's science data products and supports one-click retrieval of data.

NVO Sky
Coverage

The
NVO Sky Statistics Service generates source counts, coverage maps,
and links to downloadable data for catalog holdings at IRSA, NED and
VizieR.

Tools

OASIS
Visualizer

OASIS
supports visualization of and interaction with data from astronomical
archives, including IRSA, NED, CDS, STScI, LLNL, NRAO, AAVSO, HEASARC, and
JPL.

Montage

Montage is a toolkit
for assembling FITS images into custom mosaics.

Image
Validation

The
Image Validation service checks the syntax of a FITS file and that
its WCS keywords are complete. 2MASS sources are overlayed on the image as a
simple astrometric check.

Object
Lookup

Coordinate and
Object Lookup uses NED and SIMBAD to retrieve coordinates for
astronomical objects by name, and supports coordinate transformations.

QA Tools

Quality
Assurance Tools for IRSA data providers.

Dust
Extinction

The Dust
Extinction Service uses the maps of Schlegel et al. to return the 100 µm
intensity integrated along a line of sight through the Galaxy, and
corresponding estimates of the Galactic dust extinction and dust
temperatures. The service also returns maps of the reddening and elementary
region statistics.

Data Tags

Returns
data encoded in a published Data Tag, which link science publications
with archives.

Data Sets

2MASS

The Two Micron All Sky Survey

Overview
& Documentation

Catalogs
(all releases, using Gator)

All-Sky
Data Release

Catalogs

Point
Source Catalog (PSC)

Extended
Source Catalog (XSC)

Large
Galaxy Atlas (LGA)

Scan
Info

Atlas
Image Footprints

Images

FinderChart

2MASS
Image Services

Large
Galaxy Atlas (with photometry)

Large Galaxy Atlas
(images only, using Atlas)

Extended
Source 3-Color Cutouts

Other

Statistics
Service for the Point Source Catalog

Extended
Mission Release

All-Sky Data

Catalogs

Catalogs

Point
Source Rejects

Merged
Point Source Info

Merged
Point Source Links

Extended
Source Rejects

Merged
Extended Source Info

Merged
Extended Source Links

Survey
Scan Info

Survey
Atlas Image Info

Full
Survey (multi-epoch) Images

Long Exposure (6x) w/LMC/SMC Scans

Catalogs

Catalogs

Point
Source Working Database

Merged
Point Source Info

Merged
Point Source Links

Extended
Source Working Database

Merged
Extended Source Info

Merged
Extended Source Links

6x
Scan Info

6x
Atlas Image Info

Catalog
& Full (multi-epoch) Images

Calibration Scans

Catalogs

Catalogs

Point
Source Working Database

Merged
Point Source Info

Merged
Point Source Links

Extended
Source Working Database

Merged
Extended Source Info

Merged
Extended Source Links

Calibration
Scan Info

Calibration
Atlas Image Info

Individual
(multi-epoch) Images

Combined Calibration Scans

Combined
Cal Field Source Table

Combined
Cal Scan Images

1st
& 2nd Incremental, Sampler Data Releases

Second Incremental Data Release (IDR2)

Point
Source Catalog (PSC)

Extended
Source Catalog (XSC)

Scan
Info Catalog

First Incremental Data Release (IDR1)

Point
Source Catalog (PSC)

Extended
Source Catalog (XSC)

Scan
Info Catalog

Sampler Data Release

Point
Source Catalog (PSC)

Extended
Source Catalog (XSC)

6x Lockman Hole
Images/Catalog

Mosaics of the
MAST Scrapbook Sources

COSMOS

Cosmic Evolution Survey

Overview
& Documentation

Public
Data

All Data Types (including small catalogs)

Spatial
Search

Images
Directory Listing

Small
Catalogs Directory Listing

Advanced Catalog Search (selected catalogs)

COSMOS
Photometry Catalog June 2007

COSMOS
ACS I-band Photometry Catalog Sep 2007

S-COSMOS
IRAC 4-channel Photometry Catalog June 2007

S-COSMOS
MIPS 24um MAIN Photometry Catalog June 2007

S-COSMOS
MIPS 24um DEEP Photometry Catalog June 2007

S-COSMOS
MIPS 70um Photometry Catalog June 2007

S-COSMOS
MIPS 160um Photometry Catalog June 2007

Images

Cutouts
Service

Images
Directory Listing

Internal
(restricted)

All Data Types (including small catalogs)

Spatial
Search

Images
Directory Listing

Small
Catalogs Directory Listing

Spectra
Directory Listing

Advanced Catalog Search (selected catalogs)

COSMOS
Internal Catalogs

Images

Cutouts
Service

Images
Directory Listing

Spectra

Spectra
Directory Listing

IRAS

Infrared Astronomical Satellite

Overview &
Documentation

Scan Processing and
Integration (Scanpi)

Catalog
search (using Gator)

Catalog search (using Gator)

Faint
Source Catalog v2.0 (FSC)

Point
Source Catalog v2.1 (PSC)

Cataloged
Galaxies and Quasars

Serendipitous
Survey Catalog

Small
Scale Structure Catalog

Additional
Observations Catalog (AO)

Faint
Source Catalog Rejects

Point
Source Catalog Rejects

PSC
joined with Working Survey Database (WSDB)

PSC
joined with Hours-confirming (HCON) & WSDB

1.2-Jy
Redshift Survey

Asteroid
& Comet Survey

Minor
Planet Survey

Large
Galaxies Catalog

Images

IRAS Sky Survey Atlas

ISSA
Images and Catalog Overlays

ISSA Spatial Search
and Image Inventory

ISSA
Cutouts

Improved Reprocessing of the IRAS Survey

IRIS Spatial Search
and Image Inventory

IRIS
Cutouts

IRAS Galaxy Atlas

IGA
Images and Catalog Overlays

IGA Spatial Search
and Image Inventory

IGA
Cutouts

Extended IRAS Galaxy Atlas

EIGA Spatial Search
and Image Inventory

EIGA
Cutouts

Mid-Infrared Galaxy Atlas

MIGA Spatial Search
and Image Inventory

MIGA
Cutouts

IRTS

Infrared Telescope in Space

Overview &
Documentation

Catalog, Images, and
Spectra

ISO

Infrared Space Observatory

Overview &
Documentation

Visualization
Service

Spectra from the Short
Wavelength Spectrometer (SWS)

MSX

Midcourse Space Experiment

Overview &
Documentation

Image
Service with Catalog Overlays

Spatial Search and
Image Inventory

General
Catalog Queries

NED Images

NASA/IPAC Extragalactic Database

Spatial Search of NED
Images

SDSS Images

Sloan Digital Sky Survey (SDSS)

Overview &
Documentation

FinderChart

Image
Mosaics

Spitzer

Spitzer Space Telescope

Overview
& Documentation

Spitzer
Heritage Archive

Spitzer
Post-BCD Products

General
Catalog Queries

Basic
Catalog Queries

Image
Cutouts

Legacy
Programs: Galactic Data Sets

Spitzer Legacy Programs: Galactic Data Sets

C2D

FEPS

GLIMPSE

MIPSGAL

MIPSGAL Team
Access (password protected)

SASS

Taurus

Legacy
Programs: Extragalactic Data Sets

Spitzer Legacy Programs: Extragalactic Data Sets

5MUSES

FIDEL

GOALS

GOODS

LVL

SAGE

SAGE-Spec

SDWFS

SIMPLE

SINGS

SpUDS

SSGSS

SWIRE

S-COSMOS

First
Look Survey (FLS)

Spitzer First Look Survey (FLS)

VLA
Ancillary Data

IRAC/MIPS
Image Cutouts

NOAO
Extragalactic R-band

NOAO
ELAIS-N1 R-band

Ancillary
MMT/Hectospec Spectra

Contributed
Data Sets

Contributed Data Sets

ELFLock
Map

Lockman Hole 2MASS 6x
Ancillary Data

SWAS

Submillimeter Wave Astronomy Satellite

Overview &
Documentation

Spectrum
Server

USNO

USNO

Overview &
Documentation

USNO-B1
Catalog

UCAC3
Catalog

DENIS

DENIS

Overview
& Documentation

DENIS
Catalog - 3rd Release

NExScI

NASA Exoplanet Science Institute

Overview
& Documentation

Spatial
Searches and Inventories of PTI & KI Metadata

BOLOCAM

BOLOCAM

Overview
& Documentation

Galactic
Plane Survey Catalog

Galactic Plane
Survey Images

Lockman Hole
Images

BLAST

BLAST

Overview
& Documentation

BLAST
Images

AKARI

AKARI

Overview
& Documentation

AKARI/FIS
Bright Source Catalog

AKARI/IRC
Bright Source Catalog

Data Dictionary Files

Data
Dictionary Columns

Data
Dictionary Headers

Sample
Data Dictionary

Before a table can be loaded into the database, a data
dictionary (DD) must be created telling the database how to handle each
column. The user may create a data dictionary themselves (either manually or
using the "ddgen" program), or they can simply provide IRSA with enough
information to create a proper DD for them.

Data Dictionary Columns:

Name

Description

Examples

cntr

Ordinal number of the column

1, 2, 3, etc

name

Name of the column as it will appear in the database

(usually the same as originalname)

originalname

The original name of the column extracted from the input
table.

ra, fname

description

Description of the column (character string)

"Degrees from the moon"

units

Physical units of the column values. Leave blank if not
relevant.

arcsec, hours, deg, Jansky

intype

Data type of the columns in the input ASCII file. Possible
types include int, double, float, char, decimal, and date.

int, double, char, date

format

The format of data output from the database is by default
identical to the format in which they are stored in the database. This
field allows the format to be explicitly specified (uses C language data
formatting standard). Users should always provide a format for ra and dec;
formats for other columns are recommended. If no format is provided, Gator
will return values with default formats for each data type.

19s
5.3f
8.2e
14d

dbtype

The specific data type as stored in the database (i.e.,
integer, date, etc). Some data types, like decimal and character, require
additional information specifying the lengths of the string, for
instance:

character(XXX)
decimal(YY,ZZ)
where XXX
denotes the length of a character string, YY is the number of digits
before a decimal point, and ZZ is the number of digits following the
decimal.

decimal(17,16)
integer
int8
smallfloat
float
character(20)
date

nulls

Boolean value that specifies whether nulls are allowed in
this column

y or n (default is 'y')

indx

Indicates whether a column will be indexed in the database
to improve query speed. The value of this parameter can be "n" or "y".
Data providers should not modify this field; it will be updated by IRSA if
that column is indexed.

y or n (n is default)

tablFlg

This parameter determines when the column appears in the
query form. It may appear only in the short form ("0"), long form ("1"),
or always appear ("2"). Tables that have many columns (e.g., the 2MASS
XSC), are often more convenient to the user if they are separated into
short (the most important or useful columns) and long (everything)
forms.

0, 1, or 2 (default is 2)

groupID

The groupid is, by default, the value of the column index
counter cntr. If you want to "attach" certain columns to other columns,
use the groupid index to attach the column to a specific index value.
Note, groupid must have a value equal to that of a cntr value. Linked
columns must be consecutive.

EXAMPLE: Suppose you have a column named "j_m" that corresponds to the
J-band magnitude, with an index value equal to 10 and group ID equal to
10. Now suppose there is an associated error uncertainty, "j_msig" that
has an index value equal to 11 and group ID equal to 11. To group these
two columns together, set the group ID of j_msig to 10, thereby attaching
this column to the column with index cntr equal to 10. This way, "j_msig"
is always written to the output table along with "j_m". You could not link
uncertainties to magnitudes in this way if the catalog had the order
"j_m", "k_m", "j_msig", "k_msig", however, since the linked column must
immediately follow the column it is linked to.

1, 2, etc (default is this column's cntr)

sel

This boolean determines the selection status of the column.
Three values are possible: "y" (yes), "n" (no), or "h" (hidden). If yes,
the column is automatically selected (that is, by default the column will
appear in the output table). If no, the column will not appear in the
output table. If hidden, the column will not appear in the query page
(i.e., it is hidden from the user). sel is set by the data provider.

y, n, h

irsadef

Normally equal to sel. May be set differently by IRSA.

y, n, h

Data Dictionary Headers

Name

Description

fixlen

"T" refers to a fixed-length IPAC tables. "F" is non-fixed, and
consequently is read sequentially.

alias

To "Alias" or associate a column with a character string. This
parameter is usually set to "none"

primary

Primary key column. If "none", the default is "cntr"

spt_ind

The column name containing the spatial index

longitude, latitude

The column names containing ra and dec

x, y, z

Column names of the x, y, z spatial coordinates

Sample Data Dictionary:
The data
dictionary file 2MASS_LGA_IRSA.24808.dd
corresponds to this input table from the 2MASS Large Galaxy Atlas: 2MASS_LGA_IRSA.tbl.

See the Tutorial
for more information on how to generate a DD file.

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