Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2018 7 30.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 07/31/2018   06:32:18   (  -0.03, -75.21) (   0.24, -76.38)  133.34                80
 08/01/2018   06:10:55   (  -0.03, -75.23) (  -0.80, -71.86)  384.98                80
 08/02/2018   18:32:52   (   0.03, -75.27) (  -0.41, -77.16)  216.22                80
 08/03/2018   18:16:49   (   0.03, -75.29) (   0.63, -72.64)  302.44                80
 08/05/2018   06:38:37   (  -0.04, -75.32) (   0.57, -77.90)  294.74                80
 08/06/2018   06:17:14   (  -0.04, -75.34) (  -0.47, -73.38)  223.88                80
 08/07/2018   18:39:12   (   0.04, -75.38) (  -0.67, -78.70)  377.18                80
 08/08/2018   18:23:07   (   0.05, -75.41) (   0.31, -74.16)  141.62                80
 08/10/2018   06:44:57   (  -0.05, -75.44) (   0.83, -79.44)  455.10                80
 08/11/2018   06:23:33   (  -0.05, -75.47) (  -0.21, -74.92)   64.04                80