Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 8 23.  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)
 08/24/2021   07:00:53   (  -0.08,-128.30) (  -0.82,-131.64)  379.39                80
 08/26/2021   06:48:43   (  -0.08,-128.32) (  -0.14,-128.69)   42.05                80
 08/28/2021   06:33:52   (  -0.07,-128.32) (   0.49,-125.73)  294.90                80
 08/28/2021   18:57:47   (   0.10,-128.24) (   0.65,-130.88)  299.32                80
 08/30/2021   18:42:56   (   0.10,-128.25) (   0.02,-127.92)   36.98                80
 09/01/2021   18:30:45   (   0.09,-128.24) (  -0.60,-124.96)  372.69                80
 09/02/2021   06:54:49   (  -0.13,-128.32) (  -0.51,-130.15)  207.97                80
 09/04/2021   06:39:58   (  -0.12,-128.31) (   0.12,-127.19)  126.89                80
 09/04/2021   19:03:52   (   0.15,-128.22) (   1.02,-132.34)  468.32                80
 09/06/2021   06:27:47   (  -0.11,-128.30) (   0.76,-124.24)  461.43                80
 09/06/2021   18:51:42   (   0.14,-128.21) (   0.39,-129.38)  133.84                80