Add code inspection to LVV-T1746 NB

notebooks/test_LVV-T1746.ipynb

@@ -432,13 +432,30 @@
     "Image(\"figures/chronograf_AF1_history_jul2023_oct2024.png\", width=600)"
    ]
   },
+  {
+   "cell_type": "markdown",
+   "id": "a6b04198-f364-40c6-a794-c08f6a3567c6",
+   "metadata": {},
+   "source": [
+    "### Thresholds\n",
+    "\n",
+    "To demonstrate that the AD1 threshold (and a related AF1 threshold, which is used to calculate the residual value at the AF1 threshold percentage) is applied, we inspect the relevant lines of `analysis_tools` [code that sets the AD1 and AF1 thresholds](https://github.com/lsst/analysis_tools/blob/2b45b7d01314f84ce12d05144fb9ae7110de62b8/python/lsst/analysis/tools/actions/keyedData/calcDistances.py#L49-L52). We see the following, indicating that the thresholds are being applied as required:\n",
+    "```\n",
+    "    threshAD = Field[float](doc=\"Threshold in mas for AFx calculation.\", default=20.0)\n",
+    "    threshAF = Field[float](\n",
+    "        doc=\"Percentile of differences that can vary by more than threshAD.\", default=10.0\n",
+    "    )\n",
+    "\n",
+    "```"
+   ]
+  },
   {
    "cell_type": "markdown",
    "id": "61eaafa4-c290-4b74-9628-2f967816034d",
    "metadata": {},
    "source": [
     "## Results\n",
-    "We have demonstrated that there is software within the Rubin Science Pipelines to calculate `AF1`, the maximum fraction of relative astrometric measurements on 5 arcminute scales that exceed the 5 arcminute outlier limit. Additionally we have shown the metrics and plots that are produced by `analysis_tools` each time the DRP pipeline is executed. Thus the result of this test is a \"**Pass**\"."
+    "We have demonstrated that there is software within the Rubin Science Pipelines to calculate `AF1`, the maximum fraction of relative astrometric measurements on 5 arcminute scales that exceed the 5 arcminute outlier limit. Additionally we have shown the metrics and plots that are produced by `analysis_tools` each time the DRP pipeline is executed, and shown that the DM code is applying the proper thresholds. Thus the result of this test is a \"**Pass**\"."
    ]
   },
   {