Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2018 6 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)
 06/19/2018   01:14:51   (   0.19,-134.76) (  -0.61,-138.06)  377.86                80
 06/20/2018   01:03:19   (   0.18,-134.80) (   0.10,-135.25)   51.13                80
 06/21/2018   00:54:25   (   0.18,-134.85) (   0.74,-132.43)  275.55                80
 06/23/2018   13:13:05   (  -0.20,-134.95) (   0.39,-137.50)  291.83                80
 06/24/2018   13:04:12   (  -0.20,-134.99) (  -0.30,-134.69)   34.42                80
 06/25/2018   12:52:39   (  -0.20,-135.03) (  -0.93,-131.87)  360.29                80
 06/28/2018   01:11:19   (   0.23,-135.13) (  -0.19,-136.94)  206.03                80
 06/29/2018   01:02:25   (   0.23,-135.17) (   0.46,-134.12)  119.55                80
 06/30/2018   00:50:52   (   0.22,-135.20) (   1.11,-131.30)  445.02                80