From 9726fe3ae0e3005f77824e563c5c9b0308ed18c2 Mon Sep 17 00:00:00 2001
From: Paul Huwe <42071634+PaulHuwe@users.noreply.github.com>
Date: Tue, 10 Oct 2023 18:49:42 +0000
Subject: [PATCH] RAD-136 Add Slope and Error to Dark (#323)

* Added slopes to dark.

* Updated Changelog.
---
 CHANGES.rst                                   |  2 +-
 .../schemas/reference_files/dark-1.0.0.yaml   | 28 ++++++++++++++++++-
 2 files changed, 28 insertions(+), 2 deletions(-)

diff --git a/CHANGES.rst b/CHANGES.rst
index 02dfbdc4..67263369 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -1,7 +1,7 @@
 0.17.2 (unreleased)
 -------------------
 
--
+- Added Slope and Error to Dark reference schema. [#323]
 
 0.17.1 (2023-08-03)
 -------------------
diff --git a/src/rad/resources/schemas/reference_files/dark-1.0.0.yaml b/src/rad/resources/schemas/reference_files/dark-1.0.0.yaml
index 921c1a3d..0760e288 100644
--- a/src/rad/resources/schemas/reference_files/dark-1.0.0.yaml
+++ b/src/rad/resources/schemas/reference_files/dark-1.0.0.yaml
@@ -69,7 +69,33 @@ properties:
       unit:
         tag: tag:astropy.org:astropy/units/unit-1.0.0
         enum: ["DN"]
+  dark_slope:
+    title: Dark current slope array
+    description: |
+       The dark current slope array represents the slope of the
+       integrated number of counts due to the accumulation of dark
+       current electrons in the pixels for slope fitting purposes.
+    tag: tag:stsci.edu:asdf/unit/quantity-1.1.0
+    properties:
+      value:
+        tag: tag:stsci.edu:asdf/core/ndarray-1.0.0
+        datatype: float32
+        ndim: 2
+      unit:
+        tag: tag:astropy.org:astropy/units/unit-1.0.0
+        enum: ["DN / s"]
+  dark_slope_error:
+    title: Uncertainty in dark current slope array
+    tag: tag:stsci.edu:asdf/unit/quantity-1.1.0
+    properties:
+      value:
+        tag: tag:stsci.edu:asdf/core/ndarray-1.0.0
+        datatype: float32
+        ndim: 2
+      unit:
+        tag: tag:astropy.org:astropy/units/unit-1.0.0
+        enum: ["DN / s"]
 required: [meta, data, dq, err]
 flowStyle: block
-propertyOrder: [meta, data, dq, err]
+propertyOrder: [meta, data, dq, err, dark_slope, dark_slope_error]
 ...