Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2018 8 11.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 08/11/2018   06:26:12   (  -0.03, -75.20) (  -0.11, -74.89)   35.97                80
 08/13/2018   18:26:45   (   0.03, -75.21) (  -0.05, -75.67)   52.31                80
 08/14/2018   18:10:41   (   0.03, -75.21) (   0.94, -71.14)  464.54                80
 08/16/2018   06:29:49   (  -0.03, -75.22) (   0.26, -76.40)  135.12                80
 08/17/2018   06:13:46   (  -0.03, -75.23) (  -0.78, -71.88)  382.06                80
 08/18/2018   18:33:03   (   0.04, -75.25) (  -0.41, -77.18)  221.11                80
 08/19/2018   18:17:00   (   0.04, -75.26) (   0.63, -72.66)  296.32                80
 08/21/2018   06:38:48   (  -0.05, -75.28) (   0.57, -77.93)  302.46                80
 08/22/2018   06:17:24   (  -0.05, -75.29) (  -0.48, -73.41)  215.24                80
 08/23/2018   18:42:02   (   0.05, -75.32) (  -0.71, -78.71)  386.96                80
 08/24/2018   18:23:18   (   0.05, -75.33) (   0.34, -74.19)  131.17                80