Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2018 1 16.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NOAA-19 Lat/Lon    Distance(km)  Time Diff(sec)
 01/17/2018   00:31:50   (   0.06,-134.57) (   0.51,-132.56)  229.39                80
 01/19/2018   12:53:09   (  -0.06,-134.46) (   0.67,-137.62)  361.17                80
 01/20/2018   12:41:37   (  -0.05,-134.41) (   0.07,-134.81)   46.49                80
 01/21/2018   12:32:47   (  -0.05,-134.35) (  -0.60,-132.00)  268.21                80
 01/24/2018   00:54:18   (   0.05,-134.21) (  -0.61,-137.11)  331.09                80
 01/25/2018   00:42:46   (   0.05,-134.15) (   0.01,-134.30)   17.06                80
 01/26/2018   00:28:35   (   0.05,-134.09) (   0.64,-131.48)  296.75                80
 01/28/2018   12:49:55   (  -0.04,-133.92) (   0.54,-136.55)  299.39                80
 01/29/2018   12:41:04   (  -0.04,-133.86) (  -0.07,-133.74)   13.79                80
 01/30/2018   12:29:32   (  -0.03,-133.79) (  -0.68,-130.92)  326.87                80