Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 5 30.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 05/31/2021   06:23:04   (  -0.01, -75.20) (  -0.08, -74.92)   32.09                80
 06/02/2021   18:26:18   (   0.01, -75.24) (  -0.07, -75.71)   52.79                80
 06/03/2021   18:10:13   (   0.00, -75.25) (   0.91, -71.17)  465.10                80
 06/05/2021   06:32:03   (  -0.01, -75.27) (   0.24, -76.45)  134.16                80
 06/06/2021   06:10:38   (  -0.01, -75.29) (  -0.75, -71.91)  383.89                80
 06/07/2021   18:32:35   (   0.02, -75.32) (  -0.44, -77.22)  217.28                80
 06/08/2021   18:16:32   (   0.02, -75.34) (   0.61, -72.70)  301.11                80
 06/10/2021   06:38:21   (  -0.02, -75.36) (   0.54, -77.98)  297.31                80
 06/11/2021   06:19:37   (  -0.02, -75.38) (  -0.44, -73.44)  221.14                80
 06/12/2021   18:38:54   (   0.03, -75.42) (  -0.73, -78.75)  379.62                80
 06/13/2021   18:22:51   (   0.02, -75.44) (   0.31, -74.23)  139.24                80