Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2018 9 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)
 09/17/2018   06:32:47   (  -0.00, -75.21) (   0.28, -76.43)  139.59                80
 09/18/2018   06:11:23   (  -0.01, -75.21) (  -0.77, -71.91)  376.91                80
 09/19/2018   18:36:00   (   0.02, -75.21) (  -0.45, -77.20)  227.87                80
 09/20/2018   18:17:16   (   0.02, -75.21) (   0.60, -72.68)  289.31                80
 09/22/2018   06:37:53   (  -0.01, -75.24) (   0.60, -77.95)  308.91                 8
 09/23/2018   06:17:40   (  -0.01, -75.25) (  -0.40, -73.41)  208.62                80
 09/24/2018   18:39:37   (   0.01, -75.26) (  -0.76, -78.72)  394.75                80
 09/25/2018   18:23:33   (   0.00, -75.27) (   0.24, -74.19)  123.09                80
 09/27/2018   06:45:21   (  -0.00, -75.30) (   0.96, -79.45)  474.24                80
 09/28/2018   06:26:38   (   0.00, -75.31) (  -0.10, -74.93)   43.80                80