Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2018 5 30.  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)
 06/02/2018   01:10:24   (   0.11,-134.91) (  -0.52,-137.54)  300.53                80
 06/03/2018   01:01:31   (   0.10,-134.87) (   0.11,-134.72)   17.09                80
 06/04/2018   00:49:58   (   0.10,-134.83) (   0.80,-131.91)  334.10                80
 06/06/2018   13:08:34   (  -0.12,-134.72) (   0.37,-136.96)  254.69                80
 06/07/2018   12:59:41   (  -0.12,-134.67) (  -0.24,-134.13)   61.92                80
 06/08/2018   12:48:07   (  -0.12,-134.63) (  -0.86,-131.31)  378.38                80
 06/11/2018   01:06:51   (   0.14,-134.50) (  -0.28,-136.39)  215.06                80
 06/12/2018   00:57:57   (   0.14,-134.45) (   0.36,-133.57)  100.91                80
 06/13/2018   00:46:24   (   0.14,-134.39) (   1.00,-130.75)  416.65                80