Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 7 28.  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)
 07/29/2021   18:45:26   (  -0.05,-127.78) (  -0.02,-127.93)   17.68                80
 07/31/2021   18:30:37   (  -0.06,-127.84) (  -0.67,-124.98)  325.13                80
 08/01/2021   06:54:40   (   0.04,-127.93) (  -0.46,-130.17)  254.92                80
 08/03/2021   06:39:50   (   0.04,-127.98) (   0.19,-127.22)   86.91                80
 08/05/2021   06:27:40   (   0.05,-128.03) (   0.85,-124.27)  428.13                80
 08/05/2021   18:51:35   (  -0.02,-127.97) (   0.29,-129.41)  164.80                80
 08/07/2021   18:36:45   (  -0.03,-128.01) (  -0.37,-126.47)  175.85                80
 08/08/2021   07:00:49   (   0.00,-128.10) (  -0.76,-131.65)  403.47                80
 08/10/2021   06:48:39   (   0.01,-128.14) (  -0.09,-128.70)   63.45                80