Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2018 6 10.  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)
 06/11/2018   01:06:50   (   0.14,-134.52) (  -0.31,-136.38)  212.90                80
 06/12/2018   00:57:57   (   0.14,-134.47) (   0.33,-133.56)  103.38                80
 06/13/2018   00:46:23   (   0.14,-134.42) (   0.97,-130.74)  419.42                80
 06/14/2018   13:16:34   (  -0.17,-134.32) (   0.83,-138.61)  489.89                80
 06/15/2018   13:05:01   (  -0.17,-134.26) (   0.20,-135.79)  174.63                80
 06/16/2018   12:56:09   (  -0.17,-134.20) (  -0.48,-132.98)  140.57                80
 06/17/2018   12:44:35   (  -0.16,-134.14) (  -1.10,-130.16)  455.64                80
 06/19/2018   01:14:48   (   0.19,-134.06) (  -0.76,-138.03)  454.09                80
 06/20/2018   01:03:15   (   0.18,-134.00) (  -0.12,-135.21)  138.78                80
 06/21/2018   00:54:21   (   0.18,-133.94) (   0.52,-132.39)  176.44                80
 06/22/2018   00:42:48   (   0.18,-133.88) (   1.17,-129.57)  491.60                80
 06/23/2018   13:13:00   (  -0.20,-133.78) (   0.67,-137.44)  418.96                80
 06/24/2018   13:01:28   (  -0.20,-133.71) (  -0.02,-134.63)  104.40                80