Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 4 28.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 04/28/2021   06:44:05   (  -0.03, -75.19) (   0.91, -79.38)  477.36                80
 04/29/2021   06:22:39   (  -0.03, -75.20) (  -0.09, -74.85)   39.75                80
 05/01/2021   18:25:50   (   0.02, -75.21) (  -0.07, -75.62)   45.93                80
 05/02/2021   18:09:45   (   0.02, -75.22) (   0.93, -71.08)  471.88                80
 05/04/2021   06:31:32   (  -0.02, -75.24) (   0.21, -76.35)  125.68                80
 05/05/2021   06:10:06   (  -0.02, -75.26) (  -0.79, -71.81)  392.47                80
 05/06/2021   18:32:02   (   0.01, -75.28) (  -0.41, -77.11)  209.10                80
 05/07/2021   18:15:57   (   0.01, -75.30) (   0.65, -72.59)  309.85                80
 05/09/2021   06:37:43   (  -0.01, -75.34) (   0.55, -77.84)  285.80                80
 05/10/2021   06:16:18   (  -0.01, -75.36) (  -0.45, -73.31)  233.20                80
 05/11/2021   18:38:14   (   0.01, -75.39) (  -0.69, -78.62)  367.70                80