Add DECAM focus_z translator.

lsst · Jun 14, 2022 · e3c9b77 · e3c9b77
1 parent 3e10423
commit e3c9b77
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Showing 2 changed files with 10 additions and 0 deletions.
diff --git a/python/astro_metadata_translator/translators/decam.py b/python/astro_metadata_translator/translators/decam.py
@@ -314,6 +314,12 @@ def to_detector_name(self) -> str:
         name = self.to_detector_unique_name()
         return name[1:]
 
+    @cache_translation
+    def to_focus_z(self) -> u.Quantity:
+        # Docstring will be inherited. Property defined in properties.py
+        tel_focus_list = self._header["TELFOCUS"].split(",")
+        return float(tel_focus_list[2]) * u.um
+
     @classmethod
     def fix_header(
         cls, header: MutableMapping[str, Any], instrument: str, obsid: str, filename: Optional[str] = None

diff --git a/tests/test_decam.py b/tests/test_decam.py
@@ -40,6 +40,7 @@ def test_decam_translator(self):
                     exposure_id=229388,
                     exposure_group="229388",
                     exposure_time=200.0 * u.s,
+                    focus_z=2497.32 * u.um,
                     group_counter_end=229388,
                     group_counter_start=229388,
                     has_simulated_content=False,
@@ -75,6 +76,7 @@ def test_decam_translator(self):
                     exposure_id=160496,
                     exposure_group="160496",
                     exposure_time=0.0 * u.s,
+                    focus_z=0.0 * u.um,
                     group_counter_end=160496,
                     group_counter_start=160496,
                     has_simulated_content=False,
@@ -110,6 +112,7 @@ def test_decam_translator(self):
                     exposure_id=412037,
                     exposure_group="412037",
                     exposure_time=86.0 * u.s,
+                    focus_z=2828.00 * u.um,
                     group_counter_end=412037,
                     group_counter_start=412037,
                     has_simulated_content=False,
@@ -145,6 +148,7 @@ def test_decam_translator(self):
                     exposure_id=845291,
                     exposure_group="845291",
                     exposure_time=120.0 * u.s,
+                    focus_z=2174.28 * u.um,
                     group_counter_end=845291,
                     group_counter_start=845291,
                     has_simulated_content=False,