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The single exposure on tile 22230 on 2022-02-11 (expid 122156) rejects half of P4 (fibers 2250-2499) due to a small CTE from a cosmic effecting the overscan region, resulting in a too-large overscan jump (OSTEPB=6.07).
This has previously been seen in r8-D, z8-D, z3-D, z5-A, as described in the desispec issue #1619 (desihub/desispec#1619). However, it had not been identified previously on r4-B.
Below is the raw image centered on the bright cosmic at location (2219,1036).
The text was updated successfully, but these errors were encountered:
I've been marking these as good; they don't mess with LyA decisions (particularly on a bright tile!), and are only 5% of an exposure. We also don't have a software fix in immediate sight. My inclination would be to mark the tile as good and add the TILEID to desispec/1619, and then close this ticket.
The single exposure on tile 22230 on 2022-02-11 (expid 122156) rejects half of P4 (fibers 2250-2499) due to a small CTE from a cosmic effecting the overscan region, resulting in a too-large overscan jump (OSTEPB=6.07).
This has previously been seen in r8-D, z8-D, z3-D, z5-A, as described in the desispec issue #1619 (desihub/desispec#1619). However, it had not been identified previously on r4-B.
Below is the raw image centered on the bright cosmic at location (2219,1036).
![Screen Shot 2022-02-12 at 11 04 37 AM](https://user-images.githubusercontent.com/7918018/153724755-d0e625cb-dc4f-4e90-b22e-f87fdda12923.png)
The text was updated successfully, but these errors were encountered: