diff --git a/CHANGELOG.md b/CHANGELOG.md
index b55f52e5..3e82e80e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Unreleased
 
+**Changed**
+
+- Moved all `OPERA_` variables to a new module `dolphin.opera_utils`.
+    - Other OPERA-specific quirks have been moved to the seperate `disp-s1` repo,
+     but the functions remaining are the ones that seem most broadly useful to `sweets`
+     and other users working with burst SLCs.
 
 # [0.4.1](https://github.com/isce-framework/dolphin/compare/v0.4.0...v0.4.1) - 2023-09-08
 
diff --git a/src/dolphin/opera_utils.py b/src/dolphin/opera_utils.py
index a86a2999..f8f1876d 100644
--- a/src/dolphin/opera_utils.py
+++ b/src/dolphin/opera_utils.py
@@ -47,7 +47,7 @@ def group_by_burst(
         list of paths of CSLC files
     burst_id_fmt: str
         format of the burst id in the filename.
-        Default is [`OPERA_BURST_RE`][dolphin.workflows.config.OPERA_BURST_RE]
+        Default is [`OPERA_BURST_RE`][dolphin.opera_utils.OPERA_BURST_RE]
     minimum_images: int
         Minimum number of SLCs needed to run the workflow for each burst.
         If there are fewer SLCs in a burst, it will be skipped and
diff --git a/tests/test_workflows_s1_disp.py b/tests/test_workflows_s1_disp.py
index bf6f0b1e..5accd07e 100644
--- a/tests/test_workflows_s1_disp.py
+++ b/tests/test_workflows_s1_disp.py
@@ -7,6 +7,7 @@
 import pytest
 from make_netcdf import create_test_nc
 
+from dolphin.opera_utils import OPERA_DATASET_NAME
 from dolphin.workflows import config, s1_disp
 
 # 'Grid size 49 will likely result in GPU under-utilization due to low occupancy.'
@@ -28,7 +29,7 @@ def opera_slc_files(tmp_path, slc_stack) -> list[Path]:
     d.mkdir()
     file_list = []
 
-    *group_parts, ds_name = config.OPERA_DATASET_NAME.split("/")
+    *group_parts, ds_name = OPERA_DATASET_NAME.split("/")
     group = "/".join(group_parts)
     for burst_id in ["t087_185683_iw2", "t087_185684_iw2"]:
         for i in range(len(slc_stack)):
@@ -54,6 +55,7 @@ def test_s1_disp_run_single(opera_slc_files: list[Path], tmpdir):
         cfg = config.Workflow(
             workflow_name=config.WorkflowName.SINGLE,
             cslc_file_list=opera_slc_files,
+            input_options=dict(subdataset="/data/VV"),
             interferogram_network=dict(
                 network_type=config.InterferogramNetworkType.MANUAL_INDEX,
                 indexes=[(0, -1)],
@@ -73,6 +75,7 @@ def test_s1_disp_run_stack(opera_slc_files: list[Path], tmpdir):
         cfg = config.Workflow(
             workflow_name=config.WorkflowName.STACK,
             cslc_file_list=opera_slc_files,
+            input_options=dict(subdataset="/data/VV"),
             phase_linking=dict(
                 ministack_size=500,
             ),