Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2018 4 20.  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)
 04/21/2018   00:55:48   (  -0.05,-135.39) (   0.09,-134.75)   73.23                80
 04/22/2018   00:44:17   (  -0.05,-135.41) (   0.78,-131.94)  396.09                80
 04/23/2018   13:14:22   (   0.03,-135.42) (   1.04,-139.79)  499.24                80
 04/24/2018   13:02:50   (   0.04,-135.43) (   0.39,-136.98)  176.47                80
 04/25/2018   12:53:57   (   0.04,-135.44) (  -0.26,-134.16)  146.25                80
 04/26/2018   12:42:25   (   0.05,-135.45) (  -0.90,-131.35)  468.93                80
 04/28/2018   01:12:49   (  -0.03,-135.48) (  -0.88,-139.28)  432.39                80
 04/29/2018   01:01:17   (  -0.03,-135.49) (  -0.24,-136.46)  110.02                80
 04/30/2018   00:52:24   (  -0.03,-135.50) (   0.41,-133.65)  212.24                80
 05/02/2018   13:10:56   (   0.01,-135.51) (   0.77,-138.67)  362.13                80
 05/03/2018   12:59:23   (   0.02,-135.51) (   0.12,-135.86)   40.43                80
 05/04/2018   12:50:31   (   0.02,-135.51) (  -0.53,-133.04)  281.27                80