Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2018 4 16.  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)
 04/17/2018   12:45:50   (   0.06,-135.31) (  -0.61,-132.46)  326.20                80
 04/20/2018   01:04:41   (  -0.05,-135.37) (  -0.53,-137.57)  249.94                80
 04/21/2018   00:55:48   (  -0.05,-135.39) (   0.10,-134.75)   72.88                80
 04/22/2018   00:44:16   (  -0.05,-135.40) (   0.73,-131.93)  395.59                80
 04/24/2018   13:02:50   (   0.04,-135.42) (   0.38,-136.98)  177.73                80
 04/25/2018   12:53:57   (   0.04,-135.43) (  -0.27,-134.16)  144.85                80
 04/26/2018   12:42:25   (   0.05,-135.44) (  -0.91,-131.35)  467.37                80
 04/28/2018   01:12:48   (  -0.03,-135.47) (  -0.92,-139.27)  433.83                80
 04/29/2018   01:01:16   (  -0.03,-135.48) (  -0.28,-136.45)  111.60                80
 04/30/2018   00:52:23   (  -0.04,-135.49) (   0.37,-133.64)  210.52                80