Here is something to try

http://satmatch.com

Mike

Sent from my iPhone

On Dec 28, 2021, at 9:06 PM, 73 Bob W7LRD w7lrd@comcast.net wrote:

 Hi - Once again I am trying to figure out when RS44 will have apogee in the northern hemisphere, so I can work into N. Europe. A simple method. 73 Bob W7LRD

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