Differences

This shows you the differences between two versions of the page.

--- zp [2021/11/25 20:39] – raveel
+++ zp [2026/04/11 05:33] (current) – external edit 127.0.0.1
@@ Line 2: / Line 2: @@
 ==== Perpendicular Zenith Sky Observations ====
-ZP initiates a variation of the ZS command in which the Azimuth Tracker is rotated to an angle perpendicular to the sun.
+ZP is an (infrequently conducted) variation of the ZS command in which the Azimuth Tracker is rotated to an angle perpendicular to the sun. Instrument setup is similar to that for Umkehr observations.
 See [[zs|ZS]].