Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2018 4 25.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 04/26/2018   06:32:13   (   0.01, -75.19) (   0.28, -76.45)  142.78                80
 04/27/2018   06:10:49   (   0.00, -75.20) (  -0.73, -71.92)  374.86                80
 04/28/2018   18:32:45   (  -0.00, -75.22) (  -0.47, -77.22)  227.54                80
 04/29/2018   18:16:41   (  -0.00, -75.24) (   0.54, -72.68)  290.72                80
 05/01/2018   06:38:29   (   0.00, -75.28) (   0.62, -77.96)  306.24                80
 05/02/2018   06:17:05   (  -0.00, -75.29) (  -0.39, -73.43)  212.14                80
 05/03/2018   18:39:02   (   0.00, -75.32) (  -0.75, -78.74)  389.62                80
 05/04/2018   18:22:57   (   0.00, -75.34) (   0.27, -74.21)  129.25                80
 05/06/2018   06:44:46   (  -0.00, -75.39) (   0.90, -79.48)  466.53                80
 05/07/2018   06:23:21   (  -0.00, -75.41) (  -0.11, -74.95)   52.46                80
 05/09/2018   18:26:33   (   0.00, -75.47) (  -0.05, -75.72)   28.97                80