Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 4 24.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 04/25/2021   18:38:23   (   0.03, -75.18) (  -0.76, -78.65)  395.89                80
 04/26/2021   18:22:18   (   0.03, -75.18) (   0.29, -74.13)  121.29                80
 04/28/2021   06:44:05   (  -0.03, -75.20) (   0.91, -79.38)  477.02                80
 04/29/2021   06:22:39   (  -0.03, -75.20) (  -0.09, -74.85)   40.05                80
 05/01/2021   18:25:50   (   0.02, -75.21) (  -0.07, -75.62)   46.45                80
 05/02/2021   18:09:45   (   0.02, -75.22) (   0.93, -71.08)  471.28                80
 05/04/2021   06:31:32   (  -0.02, -75.24) (   0.21, -76.35)  125.73                80
 05/05/2021   06:10:06   (  -0.02, -75.26) (  -0.79, -71.81)  392.38                80
 05/06/2021   18:32:02   (   0.01, -75.27) (  -0.41, -77.11)  209.90                80
 05/07/2021   18:15:57   (   0.01, -75.29) (   0.64, -72.59)  308.96                80