Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2018 4 29.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 05/01/2018   06:38:29   (   0.01, -75.22) (   0.64, -77.95)  312.12                80
 05/02/2018   06:17:04   (   0.01, -75.23) (  -0.37, -73.42)  205.76                80
 05/03/2018   18:39:02   (  -0.01, -75.26) (  -0.76, -78.74)  396.19                80
 05/04/2018   18:22:57   (  -0.00, -75.27) (   0.25, -74.21)  122.18                80
 05/06/2018   06:44:45   (   0.00, -75.30) (   0.91, -79.48)  475.10                80
 05/07/2018   06:23:21   (   0.00, -75.32) (  -0.10, -74.95)   43.35                80
 05/09/2018   18:26:33   (   0.00, -75.38) (  -0.07, -75.72)   38.84                80
 05/10/2018   18:10:28   (   0.00, -75.40) (   0.94, -71.19)  480.31                80
 05/12/2018   06:32:17   (  -0.00, -75.45) (   0.23, -76.46)  115.52                80
 05/13/2018   06:10:52   (  -0.00, -75.47) (  -0.79, -71.93)  403.65                80