[PIPE2D-942] Do we see bright blue spots at double their original wavelength, i.e., in red Created: 11/Nov/21 Updated: 09/Dec/21 Resolved: 19/Nov/21 |
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| Status: | Done |
| Project: | DRP 2-D Pipeline |
| Component/s: | None |
| Affects Version/s: | None |
| Fix Version/s: | None |
| Type: | Task | Priority: | Normal |
| Reporter: | ncaplar | Assignee: | ncaplar |
| Resolution: | Done | Votes: | 0 |
| Labels: | None | ||
| Remaining Estimate: | Not Specified | ||
| Time Spent: | Not Specified | ||
| Original Estimate: | Not Specified | ||
| Attachments: |
blue_arm.png
red_arm.png
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| Story Points: | 1 | ||||||||
| Description |
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We are looking into the possible reasons for the larger than expected The code is at: /home/ncaplar/Pipeline_notebooks/PIPE2D-942 (blue spots seen in red).ipynb |
| Comments |
| Comment by ncaplar [ 11/Nov/21 ] |
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have selected the brightest HgCd (60 seconds exposure) available from PFI. We have to use HgCd because other lamps do not have basically any lines below 490nm, which is the upper limit for this analysis. As such I can operate only with calexp images ( 1. blue_arm.png showing the spots at the blue end of blue arm. Both of these lines are quite strong (see the bar on the images). |
drop in observed flux on the blue detector. As one possible diagnostic, look if there is any hint of bright blue arclines being observed at double their original wavelength in red. 
