Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 3 28.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 03/28/2021   06:22:55   (  -0.04, -75.22) (  -0.12, -74.93)   33.73                80
 03/30/2021   18:26:06   (   0.04, -75.23) (  -0.06, -75.70)   53.55                80
 03/31/2021   18:10:00   (   0.04, -75.23) (   0.93, -71.16)  463.52                80
 04/02/2021   06:31:47   (  -0.04, -75.24) (   0.24, -76.43)  135.36                80
 04/03/2021   06:10:23   (  -0.04, -75.24) (  -0.81, -71.90)  381.66                80
 04/04/2021   18:32:18   (   0.03, -75.25) (  -0.41, -77.19)  222.00                80
 04/05/2021   18:16:14   (   0.03, -75.26) (   0.63, -72.67)  295.72                80
 04/07/2021   06:38:00   (  -0.02, -75.28) (   0.59, -77.92)  301.44                80
 04/08/2021   06:16:36   (  -0.02, -75.30) (  -0.46, -73.40)  216.59                80
 04/09/2021   18:38:31   (   0.01, -75.31) (  -0.75, -78.69)  385.83                80
 04/10/2021   18:22:26   (   0.02, -75.33) (   0.29, -74.17)  132.93                80