Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2018 12 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)
 12/09/2018   18:14:34   (  -0.02, -75.17) (   0.53, -72.79)  272.13                80
 12/11/2018   06:39:02   (   0.02, -75.18) (   0.66, -78.06)  327.88                80
 12/12/2018   06:17:37   (   0.02, -75.18) (  -0.37, -73.53)  189.02                80
 12/13/2018   18:42:14   (  -0.03, -75.19) (  -0.82, -78.83)  414.37                80
 12/14/2018   18:20:48   (  -0.02, -75.20) (   0.15, -74.29)  102.97                80
 12/16/2018   06:45:16   (   0.03, -75.22) (   0.98, -79.57)  495.87                80
 12/17/2018   06:23:51   (   0.03, -75.23) (   0.01, -75.03)   21.86                80
 12/19/2018   18:29:43   (  -0.03, -75.26) (  -0.16, -75.81)   62.83                80
 12/20/2018   18:08:18   (  -0.03, -75.28) (   0.88, -71.29)  455.00                80
 12/22/2018   06:32:46   (   0.04, -75.30) (   0.32, -76.56)  143.23                80