Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2019 1 15.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/17/2019   06:45:09   (   0.02, -75.21) (   0.97, -79.57)  496.81                80
 01/18/2019   06:23:43   (   0.02, -75.21) (  -0.01, -75.03)   19.97                80
 01/20/2019   18:29:34   (  -0.03, -75.22) (  -0.16, -75.81)   67.04                80
 01/21/2019   18:08:10   (  -0.02, -75.22) (   0.89, -71.28)  450.05                80
 01/23/2019   06:32:37   (   0.03, -75.24) (   0.30, -76.55)  148.65                80
 01/24/2019   06:11:12   (   0.02, -75.25) (  -0.68, -72.01)  368.78                80
 01/25/2019   18:35:48   (  -0.03, -75.26) (  -0.46, -77.32)  233.79                80
 01/26/2019   18:14:22   (  -0.03, -75.28) (   0.52, -72.78)  284.24                80
 01/28/2019   06:38:50   (   0.03, -75.31) (   0.67, -78.05)  312.84                80
 01/29/2019   06:17:25   (   0.03, -75.33) (  -0.38, -73.52)  205.45                80