Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2018 4 7.  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)
 04/08/2018   12:49:13   (   0.06,-135.06) (  -0.26,-133.55)  172.01                80
 04/09/2018   12:37:42   (   0.07,-135.09) (  -0.96,-130.75)  496.66                80
 04/11/2018   01:08:03   (  -0.06,-135.15) (  -0.85,-138.66)  400.45                80
 04/12/2018   00:56:31   (  -0.06,-135.18) (  -0.23,-135.84)   76.20                80
 04/13/2018   00:47:39   (  -0.07,-135.21) (   0.45,-133.04)  247.96                80
 04/15/2018   13:06:14   (   0.06,-135.26) (   0.72,-138.08)  322.04                80
 04/16/2018   12:54:42   (   0.06,-135.28) (   0.08,-135.26)    2.91                80
 04/17/2018   12:45:50   (   0.06,-135.30) (  -0.62,-132.46)  325.11                80
 04/20/2018   01:04:40   (  -0.05,-135.35) (  -0.58,-137.56)  252.13                80
 04/21/2018   00:55:49   (  -0.05,-135.37) (   0.12,-134.76)   70.52                80