Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2017 6 29.  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)
 06/30/2017   00:30:26   (   0.18,-135.46) (  -0.42,-138.12)  303.61                80
 07/01/2017   00:21:39   (   0.18,-135.46) (   0.22,-135.33)   14.74                80
 07/02/2017   00:10:11   (   0.18,-135.46) (   0.86,-132.54)  332.97                80
 07/04/2017   12:29:05   (  -0.20,-135.43) (   0.33,-137.67)  256.15                80
 07/05/2017   12:20:18   (  -0.20,-135.42) (  -0.33,-134.88)   61.51                80
 07/06/2017   12:08:50   (  -0.20,-135.41) (  -0.98,-132.10)  379.00                80
 07/09/2017   00:27:46   (   0.22,-135.39) (  -0.18,-137.24)  210.25                80
 07/10/2017   00:18:58   (   0.22,-135.38) (   0.46,-134.45)  106.75                80
 07/11/2017   00:07:31   (   0.22,-135.36) (   1.10,-131.66)  423.61                80
 07/12/2017   12:37:50   (  -0.24,-135.33) (   0.73,-139.57)  483.70                80
 07/13/2017   12:26:23   (  -0.24,-135.31) (   0.07,-136.78)  167.19                80