Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2019 9 14.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 09/15/2019   06:23:50   (   0.00, -75.19) (  -0.04, -74.95)   26.73                80
 09/17/2019   18:27:02   (  -0.00, -75.20) (  -0.12, -75.73)   59.52                80
 09/18/2019   18:10:57   (  -0.00, -75.21) (   0.90, -71.20)  457.62                80
 09/20/2019   06:32:45   (   0.00, -75.22) (   0.30, -76.46)  142.05                80
 09/21/2019   06:11:20   (   0.00, -75.22) (  -0.73, -71.93)  375.08                80
 09/22/2019   18:33:17   (  -0.00, -75.23) (  -0.45, -77.23)  227.77                80
 09/23/2019   18:17:12   (  -0.01, -75.24) (   0.58, -72.70)  289.61                80
 09/25/2019   06:38:59   (   0.01, -75.25) (   0.63, -77.96)  309.40                80
 09/26/2019   06:17:35   (   0.01, -75.26) (  -0.40, -73.43)  208.17                80
 09/27/2019   18:39:31   (  -0.01, -75.28) (  -0.77, -78.74)  393.85                80
 09/28/2019   18:23:27   (  -0.01, -75.29) (   0.26, -74.21)  124.30                80