Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2018 3 21.  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)
 03/22/2018   12:44:27   (   0.06,-134.79) (  -0.35,-132.93)  211.94                80
 03/25/2018   01:03:12   (  -0.06,-134.68) (  -0.84,-138.01)  380.89                80
 03/26/2018   00:51:40   (  -0.07,-134.63) (  -0.18,-135.21)   65.06                80
 03/27/2018   00:42:48   (  -0.07,-134.58) (   0.43,-132.38)  250.75                80
 03/29/2018   13:01:28   (   0.07,-134.46) (   0.75,-137.45)  340.25                80
 03/30/2018   12:49:55   (   0.07,-134.41) (   0.12,-134.63)   24.54                80
 03/31/2018   12:41:03   (   0.07,-134.36) (  -0.51,-131.81)  291.09                80
 04/03/2018   00:59:49   (  -0.07,-134.23) (  -0.67,-136.90)  304.92                80
 04/04/2018   00:50:57   (  -0.07,-134.17) (  -0.06,-134.08)   10.22                80