Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2019 6 6.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 06/07/2019   18:39:13   (   0.00, -75.20) (  -0.82, -78.77)  407.84                80
 06/08/2019   18:23:08   (  -0.01, -75.20) (   0.18, -74.24)  109.01                80
 06/10/2019   06:42:17   (   0.02, -75.21) (   1.01, -79.51)  490.87                80
 06/11/2019   06:26:13   (   0.02, -75.21) (  -0.05, -74.99)   26.23                80
 06/13/2019   18:26:46   (  -0.02, -75.23) (  -0.11, -75.76)   60.00                80
 06/14/2019   18:10:41   (  -0.02, -75.24) (   0.89, -71.23)  457.47                80
 06/16/2019   06:29:50   (   0.00, -75.26) (   0.30, -76.50)  141.44                80
 06/17/2019   06:13:46   (   0.00, -75.28) (  -0.76, -71.98)  376.29                80
 06/18/2019   18:33:03   (  -0.00, -75.30) (  -0.45, -77.28)  226.02                80
 06/19/2019   18:16:58   (  -0.01, -75.31) (   0.56, -72.75)  292.24                80