From 23d471adc31528bcf49e71fd21983b8b5e1beb16 Mon Sep 17 00:00:00 2001
From: Kyle Westfall <westfall@ucolick.org>
Date: Mon, 12 Aug 2024 16:41:24 -0700
Subject: [PATCH] fix file extensions

---
 pypeit/spectrographs/gemini_gnirs.py | 1 +
 pypeit/spectrographs/mdm_modspec.py  | 2 ++
 pypeit/spectrographs/wht_isis.py     | 1 +
 3 files changed, 4 insertions(+)

diff --git a/pypeit/spectrographs/gemini_gnirs.py b/pypeit/spectrographs/gemini_gnirs.py
index 5a88298847..989b58a677 100644
--- a/pypeit/spectrographs/gemini_gnirs.py
+++ b/pypeit/spectrographs/gemini_gnirs.py
@@ -587,6 +587,7 @@ class GNIRSIFUSpectrograph(GeminiGNIRSSpectrograph):
     #   * Need to store a wavelength solution for different grating options (Note, the Holy Grail algorithm works pretty well, most of the time)
     name = 'gemini_gnirs_ifu'
     pypeline = 'SlicerIFU'
+    allowed_extensions = ['.fits', '.fits.bz2']
 
     def init_meta(self):
         super().init_meta()
diff --git a/pypeit/spectrographs/mdm_modspec.py b/pypeit/spectrographs/mdm_modspec.py
index 68b1dbe2c6..25f0f78077 100644
--- a/pypeit/spectrographs/mdm_modspec.py
+++ b/pypeit/spectrographs/mdm_modspec.py
@@ -31,6 +31,8 @@ class MDMModspecEchelleSpectrograph(spectrograph.Spectrograph):
     supported = True
     comment = 'MDM Modspec spectrometer; Only 1200l/mm disperser (so far)'
 
+    allowed_extensions = ['.fit']
+
     def get_detector_par(self, det, hdu=None):
         """
         Return metadata for the selected detector.
diff --git a/pypeit/spectrographs/wht_isis.py b/pypeit/spectrographs/wht_isis.py
index e107264ac3..38aab5006b 100644
--- a/pypeit/spectrographs/wht_isis.py
+++ b/pypeit/spectrographs/wht_isis.py
@@ -125,6 +125,7 @@ class WHTISISBlueSpectrograph(WHTISISSpectrograph):
     name = 'wht_isis_blue'
     camera = 'ISISb'
     comment = 'Blue camera'
+    allowed_extensions = ['.fit.gz']
     
     def get_detector_par(self, det, hdu=None):
         """