Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 3 9.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 03/09/2021   18:22:37   (   0.04, -75.20) (   0.29, -74.22)  112.68                80
 03/11/2021   06:44:24   (  -0.03, -75.20) (   0.90, -79.48)  487.81                80
 03/12/2021   06:22:59   (  -0.03, -75.20) (  -0.07, -74.94)   29.21                80
 03/14/2021   18:26:10   (   0.02, -75.23) (  -0.11, -75.71)   55.64                80
 03/15/2021   18:10:05   (   0.02, -75.24) (   0.93, -71.18)  462.18                80
 03/17/2021   06:31:53   (  -0.02, -75.25) (   0.26, -76.45)  136.61                80
 03/18/2021   06:10:28   (  -0.02, -75.26) (  -0.78, -71.92)  381.17                80
 03/19/2021   18:32:23   (   0.02, -75.29) (  -0.44, -77.22)  220.42                80
 03/20/2021   18:16:19   (   0.02, -75.30) (   0.60, -72.69)  297.84                80
 03/22/2021   06:38:06   (  -0.01, -75.33) (   0.58, -77.96)  299.88                80