Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2019 3 18.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 03/19/2019   18:38:56   (  -0.00, -75.20) (  -0.81, -78.73)  402.75                80
 03/20/2019   18:22:51   (  -0.00, -75.21) (   0.25, -74.21)  114.62                80
 03/22/2019   06:44:37   (  -0.00, -75.22) (   0.94, -79.47)  484.26                80
 03/23/2019   06:23:12   (  -0.00, -75.23) (  -0.06, -74.94)   33.37                80
 03/25/2019   18:26:23   (   0.01, -75.26) (  -0.08, -75.71)   50.77                80
 03/26/2019   18:10:17   (   0.01, -75.28) (   0.92, -71.17)  467.45                80
 03/28/2019   06:32:04   (  -0.01, -75.30) (   0.27, -76.43)  130.06                80
 03/29/2019   06:10:39   (  -0.01, -75.31) (  -0.79, -71.91)  388.49                80
 03/30/2019   18:32:34   (   0.00, -75.34) (  -0.40, -77.21)  212.31                80
 03/31/2019   18:16:29   (  -0.00, -75.36) (   0.61, -72.67)  306.73                80