Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2019 5 19.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 05/20/2019   06:38:33   (   0.00, -75.17) (   0.64, -77.98)  319.82                80
 05/21/2019   06:17:09   (   0.00, -75.17) (  -0.41, -73.46)  196.14                80
 05/22/2019   18:39:05   (   0.00, -75.18) (  -0.82, -78.75)  408.30                80
 05/23/2019   18:23:02   (   0.01, -75.18) (   0.23, -74.23)  108.16                80
 05/25/2019   06:44:50   (  -0.01, -75.18) (   0.97, -79.50)  492.22                80
 05/26/2019   06:23:27   (  -0.01, -75.19) (  -0.08, -74.98)   24.67                80
 05/28/2019   18:26:40   (   0.01, -75.21) (  -0.09, -75.75)   61.49                80
 05/29/2019   18:10:35   (   0.01, -75.22) (   0.91, -71.22)  456.00                80
 05/31/2019   06:32:24   (  -0.02, -75.24) (   0.24, -76.50)  142.99                80
 06/01/2019   06:11:00   (  -0.02, -75.25) (  -0.76, -71.97)  374.49                80