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)
 08/13/2018   18:26:44   (   0.03, -75.20) (  -0.10, -75.66)   53.07                80
 08/14/2018   18:10:41   (   0.03, -75.21) (   0.94, -71.14)  463.82                80
 08/16/2018   06:29:49   (  -0.03, -75.22) (   0.26, -76.40)  135.68                80
 08/17/2018   06:13:46   (  -0.03, -75.23) (  -0.78, -71.88)  381.52                80
 08/18/2018   18:33:03   (   0.04, -75.24) (  -0.41, -77.19)  221.75                80
 08/19/2018   18:17:00   (   0.04, -75.25) (   0.64, -72.66)  295.71                80
 08/21/2018   06:36:08   (  -0.04, -75.27) (   0.56, -77.93)  302.93                80
 08/22/2018   06:20:04   (  -0.05, -75.29) (  -0.48, -73.41)  214.81                80
 08/23/2018   18:39:22   (   0.05, -75.31) (  -0.70, -78.71)  387.52                80
 08/24/2018   18:23:17   (   0.05, -75.33) (   0.28, -74.18)  130.65                80