Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2018 4 9.  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)
 04/11/2018   01:08:03   (  -0.06,-135.15) (  -0.86,-138.66)  400.16                80
 04/12/2018   00:56:31   (  -0.06,-135.18) (  -0.24,-135.84)   75.94                80
 04/13/2018   00:47:39   (  -0.07,-135.21) (   0.44,-133.03)  248.27                80
 04/15/2018   13:06:14   (   0.06,-135.26) (   0.74,-138.07)  321.95                80
 04/16/2018   12:57:22   (   0.06,-135.28) (   0.04,-135.27)    2.65                80
 04/17/2018   12:45:50   (   0.06,-135.30) (  -0.60,-132.46)  325.23                80
 04/20/2018   01:04:41   (  -0.05,-135.36) (  -0.54,-137.57)  251.69                80
 04/21/2018   00:55:48   (  -0.05,-135.37) (   0.09,-134.75)   70.91                80
 04/22/2018   00:44:16   (  -0.05,-135.38) (   0.73,-131.93)  393.40                80