Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2018 4 27.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 04/28/2018   18:32:46   (  -0.00, -75.19) (  -0.43, -77.22)  231.30                80
 04/29/2018   18:16:41   (   0.00, -75.20) (   0.58, -72.69)  285.81                80
 05/01/2018   06:38:30   (  -0.00, -75.21) (   0.59, -77.96)  313.30                80
 05/02/2018   06:17:05   (  -0.00, -75.22) (  -0.43, -73.43)  203.89                80
 05/03/2018   18:39:01   (  -0.00, -75.23) (  -0.77, -78.74)  399.33                80
 05/04/2018   18:22:57   (  -0.00, -75.24) (   0.25, -74.20)  118.42                80
 05/06/2018   06:44:44   (   0.02, -75.26) (   0.98, -79.46)  479.16                80
 05/07/2018   06:23:20   (   0.02, -75.28) (  -0.04, -74.93)   38.81                80
 05/09/2018   18:26:32   (  -0.03, -75.31) (  -0.13, -75.71)   45.28                80
 05/10/2018   18:10:27   (  -0.03, -75.33) (   0.89, -71.17)  473.29                80