Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 4 21.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 04/21/2021   18:16:05   (   0.03, -75.17) (   0.57, -72.62)  290.77                80
 04/23/2021   06:37:53   (  -0.02, -75.18) (   0.57, -77.89)  308.15                80
 04/24/2021   06:16:27   (  -0.02, -75.18) (  -0.42, -73.35)  208.56                80
 04/25/2021   18:38:23   (   0.02, -75.18) (  -0.73, -78.66)  396.06                80
 04/26/2021   18:22:18   (   0.02, -75.18) (   0.26, -74.12)  121.07                80
 04/28/2021   06:44:04   (  -0.02, -75.20) (   0.94, -79.38)  476.87                80
 04/29/2021   06:22:40   (  -0.02, -75.20) (  -0.12, -74.85)   40.20                80
 05/01/2021   18:25:50   (   0.02, -75.21) (  -0.09, -75.61)   46.78                80
 05/02/2021   18:09:45   (   0.02, -75.21) (   0.97, -71.09)  470.97                80
 05/04/2021   06:31:31   (  -0.01, -75.24) (   0.24, -76.35)  125.71                80