Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2018 7 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)
 07/26/2018   06:23:20   (  -0.03, -75.18) (  -0.11, -74.86)   36.41                80
 07/28/2018   18:26:34   (   0.03, -75.18) (  -0.07, -75.64)   52.37                80
 07/29/2018   18:10:30   (   0.03, -75.18) (   0.97, -71.12)  464.27                80
 07/31/2018   06:32:19   (  -0.04, -75.20) (   0.23, -76.38)  135.28                80
 08/01/2018   06:10:55   (  -0.04, -75.20) (  -0.81, -71.86)  381.68                80
 08/02/2018   18:32:53   (   0.04, -75.21) (  -0.39, -77.16)  222.24                80
 08/03/2018   18:16:49   (   0.04, -75.22) (   0.65, -72.64)  295.04                80
 08/05/2018   06:38:37   (  -0.04, -75.24) (   0.55, -77.91)  303.73                80
 08/06/2018   06:17:14   (  -0.05, -75.25) (  -0.49, -73.38)  213.53                80
 08/07/2018   18:39:11   (   0.05, -75.26) (  -0.71, -78.69)  390.23                80
 08/08/2018   18:23:08   (   0.05, -75.28) (   0.33, -74.17)  127.20                80