Differences

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

--- moon_planning [2019/11/03 04:06] – jrseti
+++ moon_planning [2019/11/06 01:29] (current) – jrseti
@@ Line 1: / Line 1: @@
 ====== When is best to observe the Moon ======
-{{ :wiki:moon-elevation-plot1.png?direct&600 |}}
+{{ :wiki:moon-elevation-plot1.png |}}
 The best time to observe the Moon is when it is highest in the sky while being angularly far from the Sun.
-For an interactive graph you can interactively zoom into please visit [[http://jrseti.com/moon_obs_planner.html|Moon Obsevation Planner Graph]]
+For an interactive graph you can interactively zoom into please visit [[https://jrseti.com/moon_obs_planner.html|Moon Obsevation Planner Graph]]
+===== Beamformer Synthesized Beam Size =====
+at 1GHz the beamsize is about 400 arcseconds
+The equation is beamsize in deg =   (1GHz_beamsize_arcseconds/acseconds per degree)  /  (freq in GHz)
+At 1.296GHz  (400/3600)*1.296 = 0.086 degrees = 308 arcseconds
+The moon is approx 1700 arcseconds in diameter.
+So at 1.296GHz the beamwidth is approx 20% of the Moon's width.