Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2018 5 22.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 05/23/2018   06:23:21   (   0.02, -75.19) (  -0.05, -74.92)   30.93                80
 05/25/2018   18:26:33   (  -0.02, -75.19) (  -0.11, -75.70)   56.95                80
 05/26/2018   18:10:27   (  -0.02, -75.20) (   0.86, -71.16)  460.11                80
 05/28/2018   06:32:15   (   0.01, -75.21) (   0.30, -76.43)  139.25                80
 05/29/2018   06:10:51   (   0.00, -75.22) (  -0.73, -71.90)  377.85                80
 05/30/2018   18:32:47   (   0.00, -75.22) (  -0.45, -77.20)  225.74                80
 05/31/2018   18:16:43   (  -0.00, -75.23) (   0.58, -72.67)  291.94                80
 06/02/2018   06:35:51   (   0.00, -75.26) (   0.58, -77.95)  305.97                80
 06/03/2018   06:19:46   (   0.01, -75.27) (  -0.39, -73.41)  212.01                80
 06/04/2018   18:39:02   (  -0.01, -75.28) (  -0.78, -78.71)  390.64                80
 06/05/2018   18:22:58   (  -0.01, -75.30) (   0.25, -74.18)  127.76                80