index 4294967295 out of bound (GroupFirstSub)

Jasmine Fitzsimons
  • 1
  • 19 Nov

I am attempting to extract subhalo IDs within a specific mass range but am getting an index error - I would appreciate any insight as to why this might be occurring / how I can fix this. Please see the screenshot attached.

On another note - when I attempted to access the Hubble parameter directly via h = header['HubbleParam'] this error showed up KeyError: 'HubbleParam'. My colleague who uses Vera and accesses the cluster directly has no issue with this - is there something I need to do differently in using the JupyterLab interface?

Screenshot 2025-11-18 at 9.13.38 PM.png

Dylan Nelson
  • 19 Nov

Please check the minimum value of IDs, the documentation of GroupFirstSub, and this previous discussion.

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