Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2018 5 21.  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)
 05/24/2018   01:13:57   (   0.06,-135.22) (  -0.72,-138.70)  397.38                80
 05/25/2018   01:02:23   (   0.06,-135.19) (  -0.10,-135.88)   78.44                80
 05/26/2018   00:53:30   (   0.06,-135.17) (   0.52,-133.06)  240.36                80
 05/28/2018   13:12:05   (  -0.08,-135.09) (   0.59,-138.11)  344.23                80
 05/29/2018   13:00:31   (  -0.08,-135.05) (  -0.02,-135.28)   26.13                80
 05/30/2018   12:51:39   (  -0.08,-135.02) (  -0.69,-132.47)  291.83                80
 06/02/2018   01:10:25   (   0.11,-134.94) (  -0.49,-137.55)  297.76                80
 06/03/2018   01:01:31   (   0.11,-134.91) (   0.14,-134.73)   19.98                80
 06/04/2018   00:49:58   (   0.10,-134.87) (   0.78,-131.91)  337.68                80