Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 2 11.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 02/11/2021   18:10:10   (   0.00, -75.17) (   0.92, -71.20)  453.56                80
 02/13/2021   06:31:58   (   0.00, -75.16) (   0.29, -76.46)  147.92                80
 02/14/2021   06:10:33   (  -0.00, -75.16) (  -0.73, -71.93)  368.55                80
 02/15/2021   18:32:30   (   0.00, -75.18) (  -0.44, -77.24)  234.36                80
 02/16/2021   18:16:25   (   0.01, -75.18) (   0.59, -72.71)  282.79                80
 02/18/2021   06:38:12   (  -0.00, -75.19) (   0.62, -77.97)  317.14                80
 02/19/2021   06:16:48   (  -0.00, -75.20) (  -0.41, -73.44)  200.07                80
 02/20/2021   18:38:43   (  -0.00, -75.21) (  -0.82, -78.74)  402.27                80
 02/21/2021   18:22:39   (  -0.00, -75.22) (   0.21, -74.21)  115.27                80
 02/23/2021   06:44:27   (   0.00, -75.24) (   0.94, -79.49)  483.95                80
 02/24/2021   06:23:03   (  -0.00, -75.25) (  -0.09, -74.96)   33.56                80