Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 4 29.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 04/29/2021   06:22:40   (  -0.03, -75.20) (  -0.13, -74.86)   39.76                80
 05/01/2021   18:25:50   (   0.02, -75.21) (  -0.08, -75.61)   45.94                80
 05/02/2021   18:09:45   (   0.02, -75.22) (   0.98, -71.09)  471.90                80
 05/04/2021   06:31:32   (  -0.02, -75.24) (   0.22, -76.35)  125.68                80
 05/05/2021   06:10:06   (  -0.02, -75.26) (  -0.78, -71.81)  392.45                80
 05/06/2021   18:32:01   (   0.01, -75.28) (  -0.43, -77.11)  209.08                80
 05/07/2021   18:15:57   (   0.01, -75.30) (   0.63, -72.58)  309.87                80
 05/09/2021   06:37:43   (  -0.01, -75.34) (   0.56, -77.84)  285.80                80
 05/10/2021   06:16:19   (  -0.01, -75.36) (  -0.50, -73.32)  233.21                80
 05/11/2021   18:38:14   (   0.01, -75.39) (  -0.70, -78.61)  367.64                80
 05/12/2021   18:22:09   (   0.01, -75.41) (   0.30, -74.08)  151.84                80