Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2018 9 24.  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)
 09/25/2018   13:30:26   (   0.15,-135.63) (   0.81,-138.50)  328.29                80
 09/26/2018   13:19:40   (   0.16,-135.64) (   0.16,-135.68)    4.42                31
 09/27/2018   13:09:57   (   0.16,-135.65) (  -0.49,-132.85)  319.35                80
 09/30/2018   01:28:41   (  -0.13,-135.57) (  -0.67,-137.93)  268.97                80
 10/01/2018   01:19:46   (  -0.13,-135.58) (   0.00,-135.11)   54.23                80
 10/02/2018   01:08:11   (  -0.14,-135.58) (   0.62,-132.27)  377.14                80
 10/04/2018   13:26:42   (   0.10,-135.68) (   0.47,-137.31)  186.22                80
 10/05/2018   13:17:47   (   0.10,-135.67) (  -0.18,-134.48)  135.92                80
 10/06/2018   13:06:13   (   0.11,-135.67) (  -0.84,-131.66)  458.07                80
 10/08/2018   01:36:29   (  -0.06,-135.56) (  -0.96,-139.55)  455.40                80