Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 5 20.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 05/21/2021   06:13:06   (   0.01, -75.19) (  -0.71, -71.87)  377.12                80
 05/22/2021   18:32:25   (  -0.00, -75.18) (  -0.43, -77.19)  228.05                80
 05/23/2021   18:16:20   (   0.01, -75.18) (   0.55, -72.65)  287.85                80
 05/25/2021   06:38:09   (  -0.02, -75.19) (   0.60, -77.93)  313.06                80
 05/26/2021   06:19:26   (  -0.02, -75.19) (  -0.44, -73.41)  203.24                80
 05/27/2021   18:38:43   (   0.02, -75.19) (  -0.76, -78.71)  401.44                80
 05/28/2021   18:22:39   (   0.01, -75.19) (   0.23, -74.18)  115.17                80
 05/30/2021   06:41:48   (  -0.01, -75.20) (   0.92, -79.46)  484.74                80
 05/31/2021   06:25:44   (  -0.00, -75.21) (  -0.06, -74.92)   32.31                80
 06/02/2021   18:26:17   (  -0.00, -75.23) (  -0.08, -75.71)   53.42                80