Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2019 3 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)
 03/22/2019   06:44:37   (   0.00, -75.20) (   0.96, -79.47)  486.68                80
 03/23/2019   06:23:12   (   0.00, -75.20) (  -0.04, -74.93)   30.52                80
 03/25/2019   18:26:22   (   0.00, -75.23) (  -0.10, -75.71)   54.56                80
 03/26/2019   18:10:17   (   0.01, -75.23) (   0.91, -71.17)  463.12                80
 03/28/2019   06:32:03   (  -0.00, -75.25) (   0.29, -76.43)  135.53                80
 03/29/2019   06:10:39   (  -0.00, -75.26) (  -0.78, -71.91)  382.49                80
 03/30/2019   18:32:34   (  -0.00, -75.28) (  -0.42, -77.21)  218.80                80
 03/31/2019   18:16:29   (  -0.00, -75.30) (   0.58, -72.67)  299.70                80
 04/02/2019   06:38:15   (   0.00, -75.32) (   0.61, -77.93)  297.56                80
 04/03/2019   06:16:51   (   0.00, -75.34) (  -0.46, -73.41)  221.22                80