Download multiple coadd tracts?

Support
#1

Hi,

In the Portal view, I can search for coadd images overlapping or near my target RA,Dec, and I can download the images one at a time using the top-left panel’s disk icon (with a generic/wrong filename).

But is there a way to select-all and batch download the ~18 coadds matching my query?

I did check the Firefly docs, but they are generic rather than Rubin specific and the relevant section (Welcome To The CILogon OpenID Connect Authorization Service) is particularly unhelpful:

“Some windows may have a button that reads “Prepare Download.” If that button appears, then you just…”

thanks,
dustin

#2

You can use SIA remotely with pyvo or TOPCAT. There are tutorials on how to set this up.

#3

Ok - so you’re saying that the Portal really only has toy support for downloading image files.
That’s surprising - it’s a feature that, like, every other astronomy data center service has.

#4

I wasn’t saying anything about portal. I was saying that SIA exists so that if you want to download more than a few files you can do it using SIA. SIA is what Portal is using. Please do not take anything I am saying as disparaging portal or explaining portal features or lack of features – I don’t use the portal so have no comment to make on it.

#5

@dstn Thank you for the question. Thank @timj for the answer.
Please check this tutorial which talks about “How to get started with PyVO using SIA”, and Section 9 talks about downloading a FITS image. The commands can be repeated (e.g. in a for loop) to download multiple images together. Basically, change the index in datalink_url = table["access_url"][0].
Please also see This tutorial about “How to use TOPCAT and SIA to view DP1 images in ds9 or Aladin” for reference.
Note these are DP1 tutorials (the DP2 ones will be online soon) so please change “dp1” in the commands to “dp2” for DP2 images.