Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2018 5 7.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 05/09/2018   18:26:32   (  -0.00, -75.21) (  -0.11, -75.71)   56.65                80
 05/10/2018   18:10:28   (  -0.00, -75.22) (   0.91, -71.18)  460.56                80
 05/12/2018   06:32:16   (   0.00, -75.22) (   0.26, -76.45)  139.36                80
 05/13/2018   06:10:51   (   0.00, -75.23) (  -0.76, -71.92)  377.94                80
 05/14/2018   18:32:48   (  -0.00, -75.25) (  -0.42, -77.22)  224.34                80
 05/15/2018   18:16:43   (   0.00, -75.26) (   0.60, -72.69)  293.24                80
 05/17/2018   06:38:31   (  -0.00, -75.27) (   0.62, -77.95)  306.07                80
 05/18/2018   06:17:06   (  -0.01, -75.28) (  -0.40, -73.42)  211.32                80
 05/19/2018   18:39:02   (   0.01, -75.30) (  -0.78, -78.73)  391.05                80
 05/20/2018   18:22:58   (   0.02, -75.32) (   0.24, -74.20)  126.90                80