Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2017 9 20.  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)
 09/21/2017   12:29:28   (   0.20,-135.40) (   0.05,-134.84)   64.57                80
 09/22/2017   12:18:00   (   0.21,-135.41) (  -0.60,-132.04)  385.32                80
 09/25/2017   00:36:55   (  -0.18,-135.35) (  -0.58,-137.18)  207.69                80
 09/26/2017   00:28:05   (  -0.18,-135.36) (   0.04,-134.37)  112.84                80
 09/27/2017   00:16:36   (  -0.19,-135.37) (   0.66,-131.57)  433.30                80
 09/28/2017   12:46:54   (   0.15,-135.48) (   1.07,-139.49)  458.38                80
 09/29/2017   12:35:25   (   0.15,-135.48) (   0.41,-136.70)  138.70                80
 09/30/2017   12:26:36   (   0.16,-135.48) (  -0.19,-133.89)  180.88                80
 10/03/2017   00:45:29   (  -0.12,-135.39) (  -0.96,-139.02)  415.23                80
 10/04/2017   00:33:59   (  -0.13,-135.39) (  -0.34,-136.22)   95.79                80