From 1ffa29201dd96af0b4519fd1c3260fd15935c35c Mon Sep 17 00:00:00 2001
From: pcain-usgs <pcain@usgs.gov>
Date: Fri, 4 Jun 2021 11:19:23 -0600
Subject: [PATCH] simplify pcdcp volt/bin, change magnetic H to obs D for
 variation

---
 docs/elements.md | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/docs/elements.md b/docs/elements.md
index 3f1ce9cee..d4340c308 100644
--- a/docs/elements.md
+++ b/docs/elements.md
@@ -39,16 +39,15 @@ Elements generated by observatories running the PCDCP data acquisition system.
 
   - H, E, Z, F
 
-  - 1Hz volt + bin
-    - LQA, LYB(H, E, Z volts/bins)
+  - H, E, Z volt + bin
 
 - 1 minute legacy engineering units
 
   - T1-4
+
   - H, E, Z, F
 
-  - 1 minute voltage
-    - UEB(battery voltage)
+  - instrument battery voltage
 
 ### Derived variation
 
@@ -70,7 +69,7 @@ Derived elements calculated for all observatories.
 - 1Hz engineering units
   - D, X, Y
 
-    uses `geomagio.algorithm.XYZAlgorithm` to rotate coordinates from observatory (U,V) to magnetic D and geographic (X,Y).
+    uses `geomagio.algorithm.XYZAlgorithm` to rotate coordinates from observatory (U,V) to observatory D and geographic (X,Y).
 
   - G
 
@@ -84,7 +83,7 @@ Derived elements calculated for all observatories.
 
   - D, X, Y
 
-    uses `geomagio.algorithm.XYZAlgorithm` to rotate coordinates from observatory (U,V) to magnetic D and geographic (X,Y).
+    uses `geomagio.algorithm.XYZAlgorithm` to rotate coordinates from observatory (U,V) to observatory D and geographic (X,Y).
 
   - G
 
-- 
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