Add CRIRES+ L-band example script

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: ivh

examples/crires_lm.py

@@ -0,0 +1,39 @@
+"""
+CRIRES+ L-band example
+Runs trace, flat, and norm_flat on L3340 flat-field frames.
+"""
+
+import os
+
+from pyreduce import datasets
+from pyreduce.pipeline import Pipeline
+
+instrument = "CRIRES_PLUS"
+target = ""
+night = ""
+channel = "L3340_det1"
+steps = (
+    "flat",
+    "trace",
+    "norm_flat",
+)
+
+base_dir = os.path.join(datasets.get_data_dir(), "CRIRES_LM")
+input_dir = ""
+output_dir = "reduced"
+
+pipe = Pipeline.from_instrument(
+    instrument,
+    target,
+    night=night,
+    channel=channel,
+    steps=steps,
+    base_dir=base_dir,
+    input_dir=input_dir,
+    output_dir=output_dir,
+    plot=1,
+)
+pipe._data["bias"] = None
+pipe._data["mask"] = None
+pipe._data["scatter"] = None
+pipe.run()

pyreduce/instruments/CRIRES_PLUS/settings_L.json

@@ -1,6 +1,7 @@
 {
     "__inherits__": "CRIRES_PLUS/settings.json",
     "trace": {
-        "min_cluster": 5000
+        "min_cluster": 5000,
+        "filter_y": 400
     }
 }