Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2018 9 23.  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)
 09/25/2018   13:30:26   (   0.15,-135.63) (   0.79,-138.51)  328.33                80
 09/26/2018   13:21:32   (   0.15,-135.64) (   0.14,-135.68)    5.14                80
 09/27/2018   13:09:57   (   0.16,-135.65) (  -0.51,-132.86)  319.26                80
 09/30/2018   01:28:41   (  -0.13,-135.57) (  -0.65,-137.93)  269.24                80
 10/01/2018   01:19:46   (  -0.13,-135.57) (  -0.04,-135.10)   53.87                80
 10/02/2018   01:08:11   (  -0.14,-135.58) (   0.63,-132.28)  376.81                80
 10/04/2018   13:26:42   (   0.10,-135.67) (   0.46,-137.31)  186.60                80
 10/05/2018   13:17:47   (   0.10,-135.67) (  -0.20,-134.49)  135.55                80
 10/06/2018   13:06:12   (   0.11,-135.66) (  -0.79,-131.65)  457.64                80