Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2018 9 22.  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)
 09/23/2018   01:11:57   (  -0.19,-135.49) (   0.27,-133.48)  230.19                80
 09/25/2018   13:30:25   (   0.15,-135.63) (   0.83,-138.50)  328.41                80
 09/26/2018   13:18:51   (   0.16,-135.64) (   0.18,-135.67)    4.86                80
 09/27/2018   13:09:57   (   0.16,-135.65) (  -0.47,-132.85)  319.12                80
 09/30/2018   01:28:40   (  -0.12,-135.57) (  -0.69,-137.93)  269.48                80
 10/01/2018   01:19:46   (  -0.13,-135.57) (  -0.02,-135.10)   53.57                80
 10/02/2018   01:08:11   (  -0.14,-135.58) (   0.65,-132.28)  376.51                80
 10/04/2018   13:26:41   (   0.10,-135.67) (   0.51,-137.30)  186.97                80
 10/05/2018   13:17:47   (   0.10,-135.67) (  -0.15,-134.48)  135.16                80