Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 8 25.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  LANDSAT-8 Lat/Lon    Distance(km)  Time Diff(sec)
 08/26/2021   06:48:43   (  -0.08,-128.32) (  -0.16,-128.69)   42.03                80
 08/28/2021   06:33:52   (  -0.07,-128.32) (   0.47,-125.73)  294.84                80
 08/28/2021   18:57:46   (   0.10,-128.25) (   0.67,-130.88)  299.22                80
 08/30/2021   18:42:55   (   0.10,-128.25) (   0.04,-127.92)   37.06                80
 09/01/2021   18:30:45   (   0.09,-128.24) (  -0.59,-124.96)  372.68                80
 09/02/2021   06:54:48   (  -0.13,-128.32) (  -0.53,-130.15)  208.21                80
 09/04/2021   06:39:57   (  -0.12,-128.31) (   0.10,-127.19)  126.63                80
 09/04/2021   19:03:52   (   0.15,-128.22) (   1.04,-132.34)  468.40                80
 09/06/2021   06:27:46   (  -0.11,-128.29) (   0.73,-124.23)  461.09                80
 09/06/2021   18:51:41   (   0.14,-128.20) (   0.40,-129.38)  133.98                80