For those who dont keep an up-to-date ISS tracking program always handy, I find it easy to remember that in general ISS passes are about 23 minutes later each day, but overall ,moving Earlier by 51 minutes every other day. See the plot about 40% down this page:
http://aprs.org/MobileLEOtracking.html
Nice to remember when you dont have access to heavens-above.com Again the actual orbit is moving earlier each day, but almost repeats every other day.
Bob
Also - this is helpful for tracking upcoming passes of the ISS + all APRS satellites. It defaults the GPS location to your IP address. To improve accuracy enter exact GPS coordinates in the fields on the right of the screen.
Feel free to share.
73
Robert MacHale . KE6BLR FCC Licensed Radio Operator . http://www.aprsat.com/predict . http://www.spaceCommunicator.club%C2%A0 . Supporting Boy Scout Merit Badges in Radio, Robotics, and Space Exploration Silly Joke: What did the little mountain say to the bigger mountain? Hi Cliff! He who dares not offend cannot be honest. -- THOMAS PAINE
There is nothing noble in being superior to your fellow men. True nobility lies in being superior to your former self. -- ERNEST HEMINGWAY
On Saturday, September 5, 2020, 05:06:31 PM PDT, Robert Bruninga via AMSAT-BB amsat-bb@amsat.org wrote:
For those who dont keep an up-to-date ISS tracking program always handy, I find it easy to remember that in general ISS passes are about 23 minutes later each day, but overall ,moving Earlier by 51 minutes every other day. See the plot about 40% down this page:
http://aprs.org/MobileLEOtracking.html
Nice to remember when you dont have access to heavens-above.com Again the actual orbit is moving earlier each day, but almost repeats every other day.
Bob _______________________________________________ Sent via AMSAT-BB@amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: https://www.amsat.org/mailman/listinfo/amsat-bb
participants (2)
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Robert Bruninga
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Robert MacHale