Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 2 4.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 02/04/2021   18:38:45   (  -0.01, -75.21) (  -0.79, -78.74)  402.31                80
 02/05/2021   18:22:40   (  -0.00, -75.21) (   0.23, -74.21)  114.05                80
 02/07/2021   06:44:28   (  -0.00, -75.21) (   0.98, -79.48)  487.21                80
 02/08/2021   06:23:03   (  -0.01, -75.21) (  -0.05, -74.95)   29.12                80
 02/10/2021   18:26:15   (   0.01, -75.22) (  -0.10, -75.73)   57.54                80
 02/11/2021   18:10:11   (   0.01, -75.23) (   0.93, -71.20)  459.79                80
 02/13/2021   06:31:58   (  -0.02, -75.24) (   0.28, -76.46)  139.48                80
 02/14/2021   06:10:33   (  -0.02, -75.26) (  -0.75, -71.93)  378.24                80
 02/15/2021   18:32:30   (   0.02, -75.28) (  -0.42, -77.24)  223.47                80
 02/16/2021   18:16:25   (   0.02, -75.30) (   0.61, -72.71)  294.89                80