Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 4 26.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 04/26/2021   18:22:18   (   0.03, -75.18) (   0.26, -74.12)  121.31                80
 04/28/2021   06:44:05   (  -0.03, -75.20) (   0.89, -79.39)  477.10                80
 04/29/2021   06:22:40   (  -0.03, -75.20) (  -0.11, -74.85)   39.94                80
 05/01/2021   18:25:50   (   0.02, -75.21) (  -0.04, -75.62)   46.33                80
 05/02/2021   18:09:45   (   0.02, -75.22) (   0.95, -71.08)  471.51                80
 05/04/2021   06:31:31   (  -0.02, -75.25) (   0.25, -76.34)  125.58                80
 05/05/2021   06:10:07   (  -0.02, -75.26) (  -0.81, -71.82)  392.54                80
 05/06/2021   18:32:02   (   0.01, -75.27) (  -0.39, -77.12)  209.55                80
 05/07/2021   18:15:57   (   0.01, -75.29) (   0.61, -72.58)  309.34                80
 05/09/2021   06:37:44   (  -0.01, -75.34) (   0.54, -77.85)  285.90                80