Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2018 11 20.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 11/20/2018   06:30:09   (   0.01, -75.25) (   0.28, -76.53)  145.61                80
 11/21/2018   06:14:04   (   0.01, -75.25) (  -0.74, -72.00)  370.96                80
 11/22/2018   18:33:20   (  -0.01, -75.25) (  -0.46, -77.30)  234.18                80
 11/23/2018   18:17:16   (  -0.01, -75.25) (   0.56, -72.78)  282.50                80
 11/25/2018   06:39:03   (   0.01, -75.26) (   0.63, -78.04)  316.96                80
 11/26/2018   06:17:39   (   0.01, -75.27) (  -0.39, -73.52)  199.70                80
 11/27/2018   18:39:35   (  -0.00, -75.27) (  -0.81, -78.82)  405.22                80
 11/28/2018   18:23:31   (  -0.00, -75.28) (   0.21, -74.29)  111.77                80
 11/30/2018   06:45:18   (  -0.00, -75.30) (   0.98, -79.56)  486.67                80
 12/01/2018   06:23:53   (  -0.00, -75.31) (  -0.04, -75.03)   30.85                80
 12/03/2018   18:29:45   (   0.01, -75.34) (  -0.12, -75.81)   54.84                80