Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2019 8 20.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 08/20/2019   06:11:21   (  -0.03, -75.20) (  -0.77, -71.98)  367.82                80
 08/21/2019   18:33:17   (   0.04, -75.25) (  -0.44, -77.27)  231.43                80
 08/22/2019   18:17:12   (   0.04, -75.27) (   0.58, -72.74)  287.55                80
 08/24/2019   06:39:01   (  -0.04, -75.29) (   0.56, -78.02)  310.63                80
 08/25/2019   06:17:36   (  -0.05, -75.32) (  -0.46, -73.49)  208.23                80
 08/26/2019   18:39:33   (   0.05, -75.36) (  -0.74, -78.79)  390.98                80
 08/27/2019   18:23:29   (   0.06, -75.39) (   0.34, -74.27)  128.21                80
 08/29/2019   06:45:16   (  -0.06, -75.42) (   0.87, -79.53)  469.32                80
 08/30/2019   06:23:52   (  -0.06, -75.44) (  -0.15, -75.00)   50.09                80
 09/01/2019   18:27:04   (   0.06, -75.53) (  -0.02, -75.77)   28.23                80
 09/02/2019   18:10:59   (   0.06, -75.57) (   1.00, -71.24)  492.14                80