Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2018 3 18.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 03/19/2018   06:44:32   (   0.02, -75.20) (   0.95, -79.44)  482.10                80
 03/20/2018   06:23:08   (   0.02, -75.21) (  -0.05, -74.90)   35.45                80
 03/22/2018   18:26:20   (  -0.02, -75.26) (  -0.13, -75.68)   48.13                80
 03/23/2018   18:10:17   (  -0.02, -75.28) (   0.92, -71.16)  469.87                80
 03/25/2018   06:32:05   (   0.02, -75.29) (   0.25, -76.43)  129.00                80
 03/26/2018   06:10:41   (   0.02, -75.31) (  -0.75, -71.90)  389.00                80
 03/27/2018   18:32:38   (  -0.02, -75.35) (  -0.42, -77.21)  211.63                80
 03/28/2018   18:16:34   (  -0.02, -75.37) (   0.58, -72.68)  307.05                80
 03/30/2018   06:38:22   (   0.03, -75.40) (   0.59, -77.95)  290.09                80
 03/31/2018   06:16:57   (   0.02, -75.43) (  -0.41, -73.41)  228.83                80