Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2018 4 14.  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)
 04/15/2018   13:06:15   (   0.06,-135.26) (   0.69,-138.08)  321.45                80
 04/16/2018   12:57:22   (   0.06,-135.29) (   0.05,-135.27)    2.45                80
 04/17/2018   12:45:50   (   0.06,-135.31) (  -0.59,-132.45)  326.06                80
 04/20/2018   01:04:41   (  -0.05,-135.37) (  -0.55,-137.56)  250.23                80
 04/21/2018   00:55:48   (  -0.05,-135.39) (   0.08,-134.75)   72.55                80
 04/22/2018   00:44:17   (  -0.05,-135.40) (   0.77,-131.94)  395.16                80
 04/24/2018   13:02:50   (   0.04,-135.41) (   0.40,-136.97)  178.32                80
 04/25/2018   12:53:57   (   0.04,-135.42) (  -0.24,-134.16)  144.17                80
 04/26/2018   12:42:25   (   0.05,-135.43) (  -0.89,-131.35)  466.62                80
 04/28/2018   01:12:49   (  -0.03,-135.46) (  -0.89,-139.28)  434.70                80