Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 4 3.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 04/03/2021   06:10:22   (  -0.04, -75.20) (  -0.75, -71.89)  376.77                80
 04/04/2021   18:32:18   (   0.03, -75.20) (  -0.41, -77.19)  227.14                80
 04/05/2021   18:16:13   (   0.03, -75.20) (   0.58, -72.66)  289.64                80
 04/07/2021   06:38:00   (  -0.02, -75.20) (   0.58, -77.93)  310.17                80
 04/08/2021   06:16:35   (  -0.02, -75.21) (  -0.41, -73.39)  206.92                80
 04/09/2021   18:38:31   (   0.01, -75.22) (  -0.75, -78.69)  395.73                80
 04/10/2021   18:22:25   (   0.01, -75.23) (   0.24, -74.16)  122.08                80
 04/12/2021   06:44:13   (  -0.01, -75.25) (   0.91, -79.43)  475.90                80
 04/13/2021   06:22:47   (  -0.02, -75.26) (  -0.08, -74.89)   42.01                80
 04/15/2021   18:25:58   (   0.02, -75.30) (  -0.08, -75.66)   41.87                80
 04/16/2021   18:09:54   (   0.02, -75.31) (   0.97, -71.13)  476.58                80