Differences

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--- moon_planning [2019/11/03 04:07] – jrseti
+++ moon_planning [2019/11/06 01:29] (current) – jrseti
@@ Line 5: / Line 5: @@
 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.