Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2017 7 13.  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)
 07/14/2017   12:14:54   (  -0.24,-135.27) (  -0.52,-133.97)  147.32                80
 07/15/2017   12:06:06   (  -0.23,-135.24) (  -1.18,-131.18)  463.44                80
 07/17/2017   00:36:30   (   0.25,-135.21) (  -0.68,-139.11)  446.40                80
 07/18/2017   00:25:03   (   0.25,-135.18) (  -0.03,-136.32)  130.68                80
 07/19/2017   00:16:16   (   0.25,-135.15) (   0.62,-133.53)  184.76                80
 07/21/2017   12:37:44   (  -0.27,-135.07) (   0.58,-138.64)  408.02                80
 07/22/2017   12:26:17   (  -0.27,-135.04) (  -0.09,-135.86)   93.22                80
 07/23/2017   12:12:08   (  -0.27,-135.00) (  -0.71,-133.06)  221.51                80
 07/26/2017   00:33:47   (   0.29,-134.90) (  -0.48,-138.21)  377.51                80
 07/27/2017   00:22:20   (   0.29,-134.87) (   0.18,-135.42)   62.80                80