Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 7 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)
 07/25/2021   06:48:32   (   0.06,-127.70) (  -0.13,-128.69)  112.42                80
 07/27/2021   06:33:42   (   0.07,-127.77) (   0.51,-125.74)  230.80                80
 07/27/2021   18:57:36   (  -0.05,-127.71) (   0.63,-130.88)  360.78                80
 07/29/2021   18:45:26   (  -0.06,-127.78) (  -0.02,-127.93)   17.29                80
 07/31/2021   18:30:36   (  -0.06,-127.85) (  -0.67,-124.98)  325.89                80
 08/01/2021   06:54:40   (   0.04,-127.94) (  -0.47,-130.17)  253.74                80
 08/03/2021   06:39:50   (   0.05,-128.00) (   0.19,-127.22)   88.48                80
 08/05/2021   06:27:40   (   0.05,-128.05) (   0.85,-124.27)  430.04                80
 08/05/2021   18:51:35   (  -0.02,-127.98) (   0.29,-129.41)  163.17                80
 08/07/2021   18:36:45   (  -0.03,-128.03) (  -0.37,-126.47)  177.84                80