Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2019 9 13.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 09/14/2019   06:45:15   (   0.01, -75.19) (   0.95, -79.49)  489.79                80
 09/15/2019   06:23:50   (   0.01, -75.19) (  -0.02, -74.95)   26.99                80
 09/17/2019   18:27:02   (  -0.01, -75.20) (  -0.14, -75.72)   59.73                80
 09/18/2019   18:10:57   (  -0.01, -75.21) (   0.89, -71.19)  457.36                80
 09/20/2019   06:32:45   (   0.01, -75.21) (   0.26, -76.47)  142.13                80
 09/21/2019   06:11:20   (   0.01, -75.22) (  -0.71, -71.92)  374.97                80
 09/22/2019   18:33:16   (  -0.01, -75.23) (  -0.47, -77.23)  228.16                80
 09/23/2019   18:17:12   (  -0.01, -75.24) (   0.56, -72.70)  289.16                80
 09/25/2019   06:38:59   (   0.02, -75.25) (   0.65, -77.96)  309.68                80
 09/26/2019   06:17:35   (   0.02, -75.26) (  -0.37, -73.43)  207.85                80
 09/27/2019   18:39:31   (  -0.02, -75.27) (  -0.80, -78.73)  394.45                80