Wide field coverage relevant to eROSITA


CTIO/DECam coverage of the eROSITA sky

See the dedicated page here.

Maps showing coverage of wide area surveys

These maps show the footprints of various wide area imaging surveys (existing, under-way and planned) that will likely be of interest for follow up studies of eROSITA sources. Also plotted are contours of Galactic dust reddening and the predicted eRASS-8 survey coverage (assuming a sun-pointing orientation).
Each of the following high resolution maps shows the coverage from a different perspective (one hemisphere per map), plotted using a Zenithal Equal Area projection. The first page of each pdf file shows all wavebands, the second page only optical coverage, and the third page only NIR. The same information is also given at lower resolution in png format, one file per waveband set, which may be better for displaying on a beamer. In order to make these plots the footprint of each survey was first converted to the SDSS 'mangle' polygon format (see the mangle website for details). The actual plotting was done with gnuplot.

Hemisphere High res .pdf
(better for printing)
Lower res .png
(better for beamers)
All bands+Opt only+NIR only All bands Optical only NIR only
West Galactic Hemisphere (eROSITA-DE) All bands+Opt only+NIR only
East Galactic Hemisphere (eROSITA-RU) All bands+Opt only+NIR only
South Galactic Hemisphere All bands+Opt only+NIR only
North Galactic Hemisphere All bands+Opt only+NIR only
South Ecliptic Hemisphere All bands+Opt only+NIR only
North Ecliptic Hemisphere All bands+Opt only+NIR only
South Equatorial Hemisphere All bands+Opt only+NIR only
North Equatorial Hemisphere All bands+Opt only+NIR only
0H Equatorial Hemisphere All bands+Opt only+NIR only
6H Equatorial Hemisphere All bands+Opt only+NIR only
12H Equatorial Hemisphere All bands+Opt only+NIR only
18H Equatorial Hemisphere All bands+Opt only+NIR only
Galactic Centre Hemisphere All bands+Opt only+NIR only
Galactic Anti-Centre Hemisphere All bands+Opt only+NIR only
All bands+Opt only+NIR only All bands Optical only NIR only

Maps showing twin-hemisphere coverage of wide area surveys

Same as above, but each figure shows two complimentary hemispheres side by side.
Hemispheres High res .pdf
(better for printing)
Lower res .png
(better for beamers)
All bands Optical only NIR only All bands Optical only NIR only
East/West Galactic Hemispheres
North/South Galactic Hemispheres
North/SouthEquatorial Hemispheres
12H/0H Equatorial Hemispheres
18H/6H Equatorial Hemispheres
All bands Optical only NIR only All bands Optical only NIR only

Detailed maps of interesting sky areas

Here are some maps showing specific interesting sky areas, with detailed multi-band information shown in the linked pdf files.
Name Map (pdf)
South Ecliptic Pole
Magellanic Clouds

Animated gifs of the sky coverage

Viewpoint is above Equatorial equator.
Waveband set Icon High res Med res Low res Tiny
All bands icon .gif (98MB) .gif (40MB) .gif (15MB) .gif (1.4MB)
Optical only icon .gif (81MB) .gif (36MB) .gif (14MB) .gif (1.4MB)
NIR only icon .gif (80MB) .gif (33MB) .gif (13MB) .gif (1.3MB)



Mangle mask files (polygon format) describing footprints of individual wide area surveys

Work in progress!
Project Telescope Instrument Survey Wavebands Area (deg2) Mangle file Sky plot Original format Refs & Notes
SDSS SDSS 2.5m SDSS Camera SDSS imaging ugriz 14563 .ply IVOA STC NVO footprint server
BOSS overall
survey footprint
ugriz 10778 .ply Mangle (fits) SDSS-DR9 website
BOSS spectrograph BOSS spectroscopic
footprint
Optical 10060 .ply Mangle (fits) SDSS-DR9 website
UKIDSS UKIRT WFCAM LAS DR10 Y 3936.5 .ply HEALPIX MOC WSA
J 3924.3 .ply
H 3946.6 .ply
K 3948.9 .ply
Y,J,H and K 3908.2 .ply
Y,J,H or K 3955.4 .ply
UHS UHS-J DR1 J 13056 .ply
VHS VISTA IRCAM VHS-DES JHK 4299.25 .ply Description in document VHS website
Exact definition a little hazy
VHS-ATLAS YJHK 4686 .ply
VHS-GPS JK 8109 .ply
VHS-REST JK 2822 .ply
VHS all regions JH (+YH) 18650 .ply
Project Telescope Instrument Survey Wavebands Area (deg2) Mangle file(s) Sky plot Original format Refs & Notes
ATLAS VST OmegaCam ATLAS ugriz 4814 Full survey,
NGC section,
SGC section
Description in document/
private communication
VST-ATLAS website,
+document
KIDS KIDS ugriz 1493 .ply Description on website KIDS website
DES CTIO Blanco DECam DES nominal grizY 5013 .ply Table in document DES website
DES
(round13)
grizY 5122 .ply ASCII perimeter Private communication (J. Mohr)
DES
(round17)
grizY 5070 .ply ASCII perimeter DES DR1 tutorial
DESI CTIO Blanco/
Kitt Peak Mayall/
Kitt Peak Bok
DECam/
MOSAIC-3/
90Prime
Combined
legacysurvey.org
footprint
grz 16763 .ply List of bricks Legacy Survey website
HSC Subaru HyperSuprimeCam HSC-Wide grizy 1370 .ply Table of boundaries Subaru website
CFHTLS CFHT MEGACAM CFHTLS-Wide ugriz 174.1 .ply List of field centres Terapix website
RCS RCS-2 griz 916 .ply List of field centres Gilbank et al. (2011)
Euclid Euclid VIS+NISP P Wide survey - core [R+I+Z]+YJH 15612 .ply Description in paper Amiaux et al. (2012)
Note that the redenning cuts
have been applied rather optimistically
Wide survey - extended [R+I+Z]+YJH 18829 .ply
Project Telescope Instrument Survey Wavebands Area (deg2) Mangle file Sky plot Original format Refs & Notes

Format references:

© 2015-18 Tom Dwelly. Some rights reserved. You are welcome to reproduce the information on this page for educational and research purposes.
Contact dwelly(at)mpe.mpg.de for further information, or to let me know where I've got something wrong.


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