Return default values if no match after cuts (#228)

astrolabsoftware · Feb 9, 2025 · 2c8775d · 2c8775d
1 parent e6ab42a
commit 2c8775d
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/fink_filters/filter_magnetic_cvs/filter.py b/fink_filters/filter_magnetic_cvs/filter.py
@@ -117,6 +117,9 @@ def magnetic_cvs(isdiffpos, ra, dec) -> pd.Series:
     # Keep only positive alerts
     valid = isdiffpos.apply(lambda x: (x == "t") or (x == "1"))
 
+    if len(ra[valid]) == 0:
+        return pd.Series(["Unknown"] * len(ra))
+
     # perform crossmatch
     series = magnetic_cvs_(ra[valid], dec[valid])