I am sort of wondering how accurate heavens-above is, the issue with magnitude would be best angle for the sun to reflect of the bright parts of the satelitte to reach your location.
I remember looking a HA almost everyday but I always got different results. The very first result in search HA was ISS at -3.3. Was a great sight, very bright on a clear night. few weeks ago had ISS pass over at -1.5 (seen dimmer) and saw nothing.
I am though concern about the amount of light polution in my area wondering if that is having a large effect as well.
Not much help now though heaps of cloud and rain ATM.
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