Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2018 6 18.  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) (  -0.60,-138.06)  378.01                80
 06/20/2018   01:03:19   (   0.18,-134.80) (   0.10,-135.25)   51.37                80
 06/21/2018   00:54:25   (   0.18,-134.84) (   0.74,-132.43)  275.27                80
 06/23/2018   13:13:05   (  -0.20,-134.94) (   0.39,-137.50)  292.03                80
 06/24/2018   13:04:12   (  -0.20,-134.98) (  -0.30,-134.69)   34.18                80
 06/25/2018   12:52:39   (  -0.20,-135.02) (  -0.93,-131.87)  359.94                80
 06/28/2018   01:11:19   (   0.23,-135.13) (  -0.19,-136.94)  206.81                80
 06/29/2018   01:02:25   (   0.23,-135.16) (   0.46,-134.12)  118.70                80
 06/30/2018   00:50:52   (   0.22,-135.19) (   1.10,-131.30)  444.10                80
 07/01/2018   13:21:06   (  -0.25,-135.23) (   0.67,-139.19)  451.67                80
 07/02/2018   13:09:33   (  -0.25,-135.26) (   0.03,-136.37)  126.61                80