Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2018 10 8.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 10/09/2018   06:17:44   (   0.02, -75.00) (  -0.34, -73.39)  183.31                80
 10/10/2018   18:39:41   (  -0.03, -75.00) (  -0.86, -78.69)  421.34                80
 10/11/2018   18:23:36   (  -0.03, -75.00) (   0.15, -74.16)   95.29                80
 10/14/2018   06:24:00   (   0.03, -75.01) (   0.00, -74.90)   12.75                80
 10/16/2018   18:29:06   (  -0.03, -75.02) (  -0.18, -75.67)   74.00                34
 10/17/2018   18:08:27   (  -0.03, -75.03) (   0.84, -71.14)  443.37                80
 10/19/2018   06:32:56   (   0.03, -75.05) (   0.32, -76.41)  154.57                80
 10/20/2018   06:11:31   (   0.03, -75.06) (  -0.70, -71.88)  363.13                80
 10/21/2018   18:33:28   (  -0.04, -75.07) (  -0.48, -77.18)  239.47                80