Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-19
TLE Epoch: 2017 6 22.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NOAA-19 Lat/Lon    Distance(km)  Time Diff(sec)
 06/23/2017   09:30:54   (   0.00, -89.48) (   0.92, -93.35)  441.96                80
 06/24/2017   09:19:26   (   0.00, -89.48) (   0.28, -90.56)  124.06                80
 06/25/2017   09:10:39   (   0.00, -89.47) (  -0.36, -87.77)  194.02                80
 06/27/2017   21:29:34   (  -0.00, -89.46) (  -0.77, -92.91)  392.87                80
 06/28/2017   21:18:06   (  -0.00, -89.47) (  -0.13, -90.12)   74.39                80
 06/29/2017   21:06:39   (  -0.00, -89.47) (   0.50, -87.33)  244.32                80
 07/02/2017   09:30:53   (   0.00, -89.49) (   0.71, -92.46)  339.82                80
 07/03/2017   09:19:25   (   0.00, -89.49) (   0.06, -89.67)   20.77                80
 07/04/2017   09:05:18   (   0.00, -89.50) (  -0.59, -86.88)  298.61                80