Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2017 12 25.  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)
 12/26/2017   12:30:50   (  -0.10,-135.32) (  -0.78,-132.37)  337.07                80
 12/29/2017   00:52:25   (   0.10,-135.22) (  -0.43,-137.49)  259.48                80
 12/30/2017   00:38:15   (   0.09,-135.20) (   0.22,-134.69)   58.24                80
 12/31/2017   00:26:44   (   0.09,-135.17) (   0.87,-131.89)  375.77                80
 01/02/2018   12:48:01   (  -0.09,-135.14) (   0.30,-136.94)  204.20                80
 01/03/2018   12:39:10   (  -0.08,-135.12) (  -0.29,-134.12)  112.92                80
 01/04/2018   12:27:39   (  -0.08,-135.09) (  -0.94,-131.32)  429.93                80
 01/06/2018   01:00:45   (   0.08,-135.00) (  -0.92,-139.24)  485.28                80
 01/07/2018   00:49:14   (   0.08,-134.97) (  -0.26,-136.44)  168.53                80
 01/08/2018   00:35:03   (   0.08,-134.93) (   0.35,-133.63)  148.20                80