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PhoSim Indexing Failures #383

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rbiswas4 opened this issue Nov 4, 2016 · 1 comment
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PhoSim Indexing Failures #383

rbiswas4 opened this issue Nov 4, 2016 · 1 comment
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@rbiswas4
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rbiswas4 commented Nov 4, 2016 •
edited by drphilmarshall

PhoSim indexes astrophysical sources with floats. For very large integers used as instance catalog indices , this causes indexing failures due to precision issues. This was found in the first set of Twinkles runs. A ticket describing the problem - PHOSIM-27 - was filed on the PhoSim Jira.

For Twinkles run 3, this problem was reported in #312 and taking advantage of the restricted nature (single CCD, rather than all sky), this issue was solved for Twinkles Run 3 in #340 . However, in general (where there will be more objects due to larger sky area) the problem is unsolved.
@rbiswas4 rbiswas4 mentioned this issue Nov 4, 2016
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@rbiswas4 rbiswas4 added the PhoSim label Nov 4, 2016
@rbiswas4 rbiswas4 added this to the Someday milestone Nov 4, 2016
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Thanks, @rbiswas4 . I think that means that this is not an issue for Twinkles, but might be for DC1 PhoSim Deep. I'll re-issue it there!

@drphilmarshall drphilmarshall mentioned this issue Nov 4, 2016
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