Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2018 11 19.  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   06:32:49   (   0.00, -75.26) (   0.26, -76.53)  144.92                80
 11/21/2018   06:11:23   (   0.00, -75.26) (  -0.70, -71.99)  371.63                80
 11/22/2018   18:33:21   (  -0.00, -75.25) (  -0.44, -77.31)  233.78                80
 11/23/2018   18:17:16   (  -0.00, -75.26) (   0.58, -72.78)  282.84                80
 11/25/2018   06:39:04   (  -0.00, -75.27) (   0.61, -78.05)  316.54                80
 11/26/2018   06:17:39   (  -0.00, -75.27) (  -0.41, -73.52)  200.01                80
 11/27/2018   18:39:35   (   0.01, -75.27) (  -0.79, -78.83)  405.19                80
 11/28/2018   18:23:31   (   0.01, -75.28) (   0.23, -74.30)  111.73                80
 11/30/2018   06:45:18   (  -0.01, -75.30) (   0.96, -79.57)  486.60                80
 12/01/2018   06:23:54   (  -0.01, -75.31) (  -0.06, -75.04)   30.84                80