From 87c1faa56f8a35d33ae042b5d2612cf522f31c51 Mon Sep 17 00:00:00 2001
From: Laura Sandoval <laura.sandoval@lasp.colorado.edu>
Date: Thu, 10 Sep 2026 11:02:40 -0600
Subject: [PATCH] add mopra coverage

---
 imap_processing/ialirt/generate_coverage.py   | 12 +++++++++++
 .../ialirt/unit/test_generate_coverage.py     | 20 ++++++++++++++++++-
 2 files changed, 31 insertions(+), 1 deletion(-)

diff --git a/imap_processing/ialirt/generate_coverage.py b/imap_processing/ialirt/generate_coverage.py
index 99bbc699d9..4a957488ee 100644
--- a/imap_processing/ialirt/generate_coverage.py
+++ b/imap_processing/ialirt/generate_coverage.py
@@ -1,6 +1,7 @@
 """Coverage time for each station."""
 
 import logging
+from datetime import time as dt_time
 
 import numpy as np
 
@@ -159,6 +160,17 @@ def generate_coverage(  # noqa: PLR0912
             time_range[outage_mask], format_str="ISOC"
         )
 
+    # Mopra: fixed daily allocation (20:45-00:30 UTC), no geometry needed.
+    # Split into two same-day windows to avoid the midnight rollover.
+    mopra_evening = StationProperties(0, 0, 0, 0, dt_time(20, 45), dt_time(23, 59, 59))
+    mopra_morning = StationProperties(0, 0, 0, 0, dt_time(0, 0), dt_time(0, 30))
+    mopra_mask = create_schedule_mask(mopra_evening, time_range) | create_schedule_mask(
+        mopra_morning, time_range
+    )
+    total_visible_mask |= mopra_mask
+    coverage_dict["Mopra"] = et_to_utc(time_range[mopra_mask], format_str="ISOC")
+    outage_dict["Mopra"] = np.array([], dtype="<U23")
+
     # --- DSN Stations ---
     if dsn:
         for dsn_station, contacts in dsn.items():
diff --git a/imap_processing/tests/ialirt/unit/test_generate_coverage.py b/imap_processing/tests/ialirt/unit/test_generate_coverage.py
index 3b4d749ca3..0b3d3f838e 100644
--- a/imap_processing/tests/ialirt/unit/test_generate_coverage.py
+++ b/imap_processing/tests/ialirt/unit/test_generate_coverage.py
@@ -125,7 +125,8 @@ def test_dsn(furnish_kernels):
         )
 
         assert "I-ALiRT Coverage Summary" in output["summary"]
-        assert 40.6 == output["total_coverage_percent"]
+        # Mopra's fixed daily allocation now contributes to total coverage.
+        assert 56.6 == output["total_coverage_percent"]
 
 
 @patch("imap_processing.ialirt.generate_coverage.et_to_utc")
@@ -181,3 +182,20 @@ def test_create_schedule_mask(mock_et_to_utc):
     )
 
     np.testing.assert_array_equal(mask, expected)
+
+
+@pytest.mark.external_kernel
+def test_mopra_coverage(furnish_kernels):
+    """
+    Test that Mopra's fixed daily allocation (20:45-00:30 UTC) is applied.
+    """
+    kernels = ["naif0012.tls", "pck00011.tpc", "de440s.bsp", "imap_spk_demo.bsp"]
+
+    with furnish_kernels(kernels):
+        coverage_dict, _ = generate_coverage("2026-09-22T00:00:00Z")
+
+    mopra_times = coverage_dict["Mopra"]
+
+    assert "2026-09-22T20:45:00.000" in mopra_times
+    assert "2026-09-22T00:30:00.000" in mopra_times
+    assert "2026-09-22T12:00:00.000" not in mopra_times