Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2019 1 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)
 01/20/2019   18:26:55   (  -0.03, -75.20) (  -0.14, -75.81)   69.40                80
 01/21/2019   18:08:09   (  -0.02, -75.20) (   0.84, -71.27)  447.10                80
 01/23/2019   06:32:36   (   0.03, -75.20) (   0.34, -76.54)  152.62                80
 01/24/2019   06:11:12   (   0.02, -75.21) (  -0.70, -72.01)  364.15                80
 01/25/2019   18:35:47   (  -0.03, -75.21) (  -0.50, -77.31)  239.46                80
 01/26/2019   18:14:23   (  -0.03, -75.22) (   0.54, -72.79)  277.94                80
 01/28/2019   06:38:50   (   0.03, -75.24) (   0.65, -78.05)  320.15                80
 01/29/2019   06:17:25   (   0.03, -75.25) (  -0.34, -73.51)  197.49                80
 01/30/2019   18:42:00   (  -0.04, -75.26) (  -0.86, -78.81)  405.10                80
 01/31/2019   18:20:35   (  -0.04, -75.28) (   0.18, -74.29)  112.96                80
 02/02/2019   06:45:03   (   0.05, -75.31) (   1.01, -79.55)  483.93                80