Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2018 4 8.  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)
 04/09/2018   12:37:41   (   0.07,-135.09) (  -0.92,-130.74)  496.66                80
 04/11/2018   01:08:03   (  -0.06,-135.15) (  -0.89,-138.65)  400.33                80
 04/12/2018   00:56:31   (  -0.06,-135.18) (  -0.21,-135.85)   76.08                80
 04/13/2018   00:47:39   (  -0.07,-135.21) (   0.42,-133.03)  248.09                80
 04/15/2018   13:06:15   (   0.06,-135.26) (   0.70,-138.08)  321.99                80
 04/16/2018   12:57:22   (   0.06,-135.28) (   0.06,-135.27)    1.69                80
 04/17/2018   12:45:50   (   0.06,-135.30) (  -0.59,-132.45)  325.16                80
 04/20/2018   01:04:40   (  -0.05,-135.36) (  -0.56,-137.56)  251.95                80
 04/21/2018   00:55:48   (  -0.05,-135.37) (   0.08,-134.75)   70.66                80
 04/22/2018   00:44:16   (  -0.05,-135.38) (   0.72,-131.93)  393.12                80