Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2018 12 10.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 12/11/2018   06:39:02   (   0.01, -75.14) (   0.64, -78.06)  332.61                80
 12/12/2018   06:17:38   (  -0.00, -75.13) (  -0.39, -73.53)  183.39                80
 12/13/2018   18:42:14   (   0.00, -75.14) (  -0.80, -78.84)  421.29                80
 12/14/2018   18:20:48   (   0.01, -75.14) (   0.17, -74.30)   95.17                80
 12/17/2018   06:23:51   (  -0.01, -75.15) (  -0.02, -75.04)   12.04                80
 12/19/2018   18:29:43   (   0.00, -75.16) (  -0.13, -75.82)   74.58                80
 12/20/2018   18:08:19   (   0.00, -75.17) (   0.90, -71.29)  442.46                80
 12/22/2018   06:32:46   (   0.01, -75.18) (   0.29, -76.56)  156.88                80
 12/23/2018   06:11:20   (   0.00, -75.19) (  -0.68, -72.02)  360.14                80
 12/24/2018   18:35:57   (  -0.01, -75.20) (  -0.49, -77.33)  243.00                80