FITS files from 5 surveys

[Rick_N.]

I am starting on making a light curve for a reported Supernova that involves FITS images from five different surveys: SDSS, PTF, Pan-STARRS, KiDS and DECaLS. I have been involved with reporting transients for people who use the citizen science project Galaxy Zoo over several years now. As we are mainly amateurs, we have found the Aperture Photometry Tool by Russ Laher from the ZTF easy enough to use.

Unfortunately, APT does not open FITS files from the KiDS survey as they are 1.4gb big. Thankfully, AstroImageJ does open these files and I have calculated some Apparent magnitudes that help a lot. Thanks again! An example of those KiDS files can be found here:
ADP.2019-02-11T13:02:25.702
http://archive.eso.org/dataset/ADP.2019-02-11T13:02:25.702

I would like to compare magnitudes that have been found already with AIJ. To start with, I used a frame
from SDSS which went well and ended up by being very nearly the same value that SDSS had come up with.
 
However, AIJ does not load properly frames from DECaLS or Pan-STARRS. The following are examples:

DECaLS
https://www.legacysurvey.org/viewer/exposures/?ra=220.0112&dec=-1.5281&layer=ls-dr9
specifically
CCD decam r 547225 S3, 60.0 sec (x,y ~ 186,260)
(decam/CP/V4.8.2a/CP20160606/c4d_160607_014821_ooi_r_ls9.fits.fz [26])

and

Pan-STARRS
http://ps1images.stsci.edu/cgi-bin/ps1cutouts?pos=220.011227+-1.528099
&filter=color&filter=g&filter=r&filter=i&filter=z&filter=y&filetypes=stack&auxiliary=data
&size=512&output_size=512&verbose=0&autoscale=99.500000&catlist=
rings.v3.skycell.1287.064.stk.z.unconv.fits
specifically
the z-band image "stack 1287.064 z"
 
Can I do something so they can be opened and used? Is there a fix?
I am running Windows 10 (64bit) and Java 8 update 281 (64bit).

Thanks for your time, Richard.

[karenacollins]

Hi Rick,

The two images you mentioned work for me. I am running the latest "Daily build" of AIJ. You can update as described here:
http://astroimagej.1065399.n5.nabble.com/After-a-fresh-installation-of-AIJ-be-sure-to-update-to-the-latest-build-td142.html


After you update, your AIJ version should show 3.4.0.23:


Here's what I see. Can you see if you can duplicate?

For DECaLS, going to your link and then to the observation you mention takes me to here:
https://www.legacysurvey.org/viewer/ccd/ls-dr9/decam-547225-S3.xhtml?rect=136,210,100,100

Then if I click the link circled below, a fits.gz file downloads and I am able to open it fine in AIJ. Does this work for you?






Going to the Pan-STARRS link you provided and then clicking "FITS" above the "stack 1287.064 z" image downloads a fits file that opens in AIJ:




Karen

On 1/29/2021 2:20 PM, Rick_N. [via AstroImageJ] wrote:

I am starting on making a light curve for a reported Supernova that involves FITS images from five different surveys: SDSS, PTF, Pan-STARRS, KiDS and DECaLS. I have been involved with reporting transients for people who use the citizen science project Galaxy Zoo over several years now. As we are mainly amateurs, we have found the Aperture Photometry Tool by Russ Laher from the ZTF easy enough to use.

Unfortunately, APT does not open FITS files from the KiDS survey as they are 1.4gb big. Thankfully, AstroImageJ does open these files and I have calculated some Apparent magnitudes that help a lot. Thanks again! An example of those KiDS files can be found here:
ADP.2019-02-11T13:02:25.702
http://archive.eso.org/dataset/ADP.2019-02-11T13:02:25.702

I would like to compare magnitudes that have been found already with AIJ. To start with, I used a frame
from SDSS which went well and ended up by being very nearly the same value that SDSS had come up with.
 
However, AIJ does not load properly frames from DECaLS or Pan-STARRS. The following are examples:

DECaLS
https://www.legacysurvey.org/viewer/exposures/?ra=220.0112&dec=-1.5281&layer=ls-dr9
specifically
CCD decam r 547225 S3, 60.0 sec (x,y ~ 186,260)
(decam/CP/V4.8.2a/CP20160606/c4d_160607_014821_ooi_r_ls9.fits.fz [26])

and

Pan-STARRS
http://ps1images.stsci.edu/cgi-bin/ps1cutouts?pos=220.011227+-1.528099
&filter=color&filter=g&filter=r&filter=i&filter=z&filter=y&filetypes=stack&auxiliary=data
&size=512&output_size=512&verbose=0&autoscale=99.500000&catlist=
rings.v3.skycell.1287.064.stk.z.unconv.fits
specifically
the z-band image "stack 1287.064 z"
 
Can I do something so they can be opened and used? Is there a fix?
I am running Windows 10 (64bit) and Java 8 update 281 (64bit).

Thanks for your time, Richard.

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[Rick_N.]

OK thankyou for viewing them. I've updated AIJ to today's version. DECaLS looks like this:

image-decam-547225-S3.fits


Pan-STARRS looks OK now, but the coordinates work outside the picture i.e. on the white side margins. Is this normal?

rings.v3.skycell.1287.064.stk.z.unconv.fits

[karenacollins]

Hi Rick,

You can change the image display dimensions (drag the edges of the image display) to get rid of some of white space. The decam image is odd-shaped, so probably you'll probably be stick with some white space. Zooming in will of course fill the white space too, at the expense of losing sight of parts of the image. Any of those changes are just for display purposes and you can display any way you want and still get the same photometry. Of course adjusting the contrast by dragging the histogram pointers at the bottom will improve the contrast of the decam display.

Karen

On 1/30/2021 8:59 AM, Rick_N. [via AstroImageJ] wrote:

OK thankyou for viewing them. I've updated AIJ to today's version. DECaLS looks like this:

image-decam-547225-S3.fits


Pan-STARRS looks OK now, but the coordinates work outside the picture i.e. on the white side margins. Is this normal?

rings.v3.skycell.1287.064.stk.z.unconv.fits

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