desihub / rrevaluator

Evaluating redrock performance
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ELG redshift failures due to bad sky model #4

Open moustakas opened 7 months ago

moustakas commented 7 months ago

Originally reported by @Jiaxi-Yu in https://github.com/desihub/desispec/issues/2152.

In a nutshell (see the original issue for details and some discussion), the following file provides cases of catastrophic ELG redshift failures due to [OII] being conflated with (high S/N) sky-subtraction residuals.

desispec_ELG_skyresidual_ZTRUE.txt

Some---and perhaps all---of these cases will be resolved by the new templates being developed in https://github.com/desihub/redrock/issues/279.