Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2019 5 21.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 05/22/2019   18:39:06   (   0.00, -75.18) (  -0.77, -78.76)  407.25                80
 05/23/2019   18:23:02   (   0.00, -75.19) (   0.22, -74.23)  109.53                80
 05/25/2019   06:44:50   (  -0.01, -75.20) (   0.98, -79.50)  490.68                80
 05/26/2019   06:23:27   (  -0.01, -75.20) (  -0.08, -74.98)   26.41                80
 05/28/2019   18:26:39   (   0.01, -75.24) (  -0.09, -75.75)   58.47                80
 05/29/2019   18:10:35   (   0.02, -75.25) (   0.90, -71.22)  459.33                80
 05/31/2019   06:32:24   (  -0.02, -75.27) (   0.23, -76.50)  139.44                80
 06/01/2019   06:11:00   (  -0.02, -75.29) (  -0.76, -71.97)  378.39                80
 06/02/2019   18:32:57   (   0.03, -75.31) (  -0.39, -77.28)  223.38                80
 06/03/2019   18:16:53   (   0.03, -75.33) (   0.61, -72.74)  294.69                80