Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2017 12 27.  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)
 12/29/2017   00:52:25   (   0.10,-135.22) (  -0.43,-137.49)  259.34                80
 12/30/2017   00:38:15   (   0.09,-135.20) (   0.22,-134.69)   58.50                80
 12/31/2017   00:26:45   (   0.09,-135.18) (   0.87,-131.89)  376.13                80
 01/02/2018   12:48:01   (  -0.09,-135.15) (   0.30,-136.94)  203.38                80
 01/03/2018   12:39:10   (  -0.08,-135.12) (  -0.29,-134.12)  113.83                80
 01/04/2018   12:27:39   (  -0.08,-135.09) (  -0.94,-131.32)  430.92                80
 01/06/2018   01:00:46   (   0.08,-135.01) (  -0.87,-139.26)  484.37                80
 01/07/2018   00:49:14   (   0.08,-134.98) (  -0.27,-136.44)  167.52                80
 01/08/2018   00:35:04   (   0.08,-134.94) (   0.40,-133.64)  149.30                80
 01/09/2018   00:23:32   (   0.08,-134.91) (   1.01,-130.82)  466.03                80