diff --git a/imap_processing/ialirt/constants.py b/imap_processing/ialirt/constants.py
index 51705a37a7..9ea031db45 100644
--- a/imap_processing/ialirt/constants.py
+++ b/imap_processing/ialirt/constants.py
@@ -50,10 +50,14 @@ class StationProperties(NamedTuple):
     min_elevation_deg: float  # minimum elevation angle in degrees
 
 
-# Verified by Kiel and KSWC Observatory staff.
-# Notes: the KSWC station is not yet operational,
-# but will have the following properties:
+# Verified by Observatory staff.
 STATIONS = {
+    "Formosa": StationProperties(
+        longitude=-47.256408,  # degrees East (negative = West)
+        latitude=-15.578032,  # degrees North (negative = South)
+        altitude=0.968,  # kilometers (~968 meters)
+        min_elevation_deg=5,  # 5 degrees is the requirement
+    ),
     "Kiel": StationProperties(
         longitude=10.1808,  # degrees East
         latitude=54.2632,  # degrees North
@@ -67,9 +71,9 @@ class StationProperties(NamedTuple):
         min_elevation_deg=5,  # 5 degrees is the requirement
     ),
     "Manaus": StationProperties(
-        longitude=-59.969334,  # degrees East (negative = West)
-        latitude=-2.891257,  # degrees North (negative = South)
-        altitude=0.1,  # approx 100 meters
+        longitude=-59.969319,  # degrees East (negative = West)
+        latitude=-2.891215,  # degrees North (negative = South)
+        altitude=0.9578,  # approx 957.8 meters
         min_elevation_deg=5,  # 5 degrees is the requirement
     ),
     "SANSA": StationProperties(
diff --git a/imap_processing/ialirt/l0/process_hit.py b/imap_processing/ialirt/l0/process_hit.py
index 8aaf42a87c..974b7d2d49 100644
--- a/imap_processing/ialirt/l0/process_hit.py
+++ b/imap_processing/ialirt/l0/process_hit.py
@@ -142,6 +142,18 @@ def process_hit(xarray_data: xr.Dataset) -> list[dict]:
     unique_groups = np.unique(grouped_data["group"])
 
     for group in unique_groups:
+        status_values = grouped_data["hit_status"][
+            (grouped_data["group"] == group).values
+        ]
+
+        if np.any(status_values == 0):
+            logger.info(
+                f"Off-nominal value detected at "
+                f"missing or duplicate pkt_counter values: "
+                f"{group}"
+            )
+            continue
+
         # Subcom values for the group should be 0-59 with no duplicates.
         subcom_values = grouped_data["hit_subcom"][
             (grouped_data["group"] == group).values