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[METIS] Extend wavelength range below 2.7um#330

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oczoske merged 2 commits intodev_masterfrom
oc/predisperser_ter
Apr 1, 2026
Merged

[METIS] Extend wavelength range below 2.7um#330
oczoske merged 2 commits intodev_masterfrom
oc/predisperser_ter

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@oczoske oczoske commented Mar 31, 2026

It was found that simulations in LMS order 41 (2.6574-2.6972um) did not produce any throughput. The reason was that TER_lms_predisperser_prism.dat only went to 2.7um and was extrapolated using 0 transmission. This PR extends the file to 2.6 um with constant transmission.

Turns out this wasn't the severest problem. !SIM.spectral.wave_min was set to 2.85um, which precluded the bluest LMS settings. Changed to 2.65um.

@oczoske oczoske self-assigned this Mar 31, 2026
@oczoske oczoske added bug Something isn't working data update New version of or change to a data file METIS AIT Issues related to METIS AIT simulations labels Mar 31, 2026
@oczoske oczoske changed the title Extend predisperser ter below 2.7um [METIS] Extend wavelength range below 2.7um Mar 31, 2026
@teutoburg teutoburg added instrument-specific Limited to a certain IRDB instrument package METIS instrument definition Addition or modification of instrument YAMLs labels Mar 31, 2026
@oczoske oczoske merged commit 552020e into dev_master Apr 1, 2026
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@oczoske oczoske deleted the oc/predisperser_ter branch April 1, 2026 07:47
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