ISS Sighting - Issaquah, WA - Edmond, OK - Lehigh Acres, FL - Site 3
Posted by: Groundspeak Premium Member BoomersOTR
N 26° 35.128 W 081° 40.265
17R E 433175 N 2940698
On July 15, 2020 an International Space Station sighting was planned between Winos_Seattle, Max and 99, and BoomersOTR.
Waymark Code: WM12V00
Location: Florida, United States
Date Posted: 07/16/2020
Published By:Groundspeak Premium Member 8Nuts MotherGoose
Views: 7

We were not sure if we would be able to see the ISS on this sighting due to the crossing being so close to civil twilight. However the -1.1 predicted magnitude upon reaching 10 degrees (06:09:38) and then a predicted -3.7 magnitude upon reaching maximum altitude (06:12:58) showed promise for visibility.

Normally we can see the ISS before it reaches 10 degrees in altitude but for this viewing we had haze or low cloud cover in the northwest and combined with the twilight we didn't see the ISS until it passed the 10 degree mark at our time of 06:10:04. It passed nearly straight overhead at 88 degrees upon maximum altitude (06:12:58). We were able to continue watching it until it dipped into the haze or low clouds in the southeast at 06:16:05. This resulted in a 6 minute viewing time and despited the twilight it was a magnificent viewing.

Max and 99 unfortunately were unable to observe the ISS, even for a short moment, due to cloud cover. I do appreciate their attempt to do so, since their viewing would have been maximum altitude at 05:08:37 at 50 degrees. They watched for it anyway from 05:05 - 05:12. So thanks for the attempt, it is much appreciated.

Haven't heard back from Winos_Seattle. Their viewing in Issaquash, WA would have started at 02:59:24 in the WNW, with maximum altitude 03:02:46 in the NNE at 64 degrees, and ending at 03:06:05 in the ESE.
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