Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 3 8.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 03/08/2021   18:38:42   (   0.03, -75.20) (  -0.75, -78.74)  403.72                80
 03/09/2021   18:22:36   (   0.03, -75.20) (   0.23, -74.20)  113.09                80
 03/11/2021   06:44:23   (  -0.02, -75.20) (   0.96, -79.47)  487.18                80
 03/12/2021   06:22:59   (  -0.01, -75.20) (  -0.07, -74.94)   29.91                80
 03/14/2021   18:26:10   (   0.01, -75.23) (  -0.11, -75.71)   54.58                80
 03/15/2021   18:10:05   (   0.01, -75.25) (   0.93, -71.18)  463.30                80
 03/17/2021   06:31:53   (  -0.01, -75.26) (   0.25, -76.45)  135.37                80
 03/18/2021   06:10:28   (  -0.02, -75.27) (  -0.79, -71.92)  382.51                80
 03/19/2021   18:32:23   (   0.01, -75.30) (  -0.43, -77.22)  218.85                80
 03/20/2021   18:16:19   (   0.01, -75.32) (   0.61, -72.69)  299.52                80