Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2018 9 17.  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)
 09/17/2018   13:22:35   (   0.21,-135.48) (   0.53,-136.87)  158.42                80
 09/18/2018   13:13:40   (   0.22,-135.50) (  -0.12,-134.04)  166.34                80
 09/19/2018   13:02:06   (   0.23,-135.52) (  -0.77,-131.22)  491.00                80
 09/21/2018   01:32:26   (  -0.17,-135.46) (  -1.03,-139.13)  418.92                80
 09/22/2018   01:20:51   (  -0.18,-135.48) (  -0.37,-136.31)   94.27                80
 09/23/2018   01:11:57   (  -0.19,-135.50) (   0.29,-133.48)  230.22                80
 09/25/2018   13:30:26   (   0.14,-135.63) (   0.81,-138.51)  328.36                80
 09/26/2018   13:20:11   (   0.15,-135.64) (   0.16,-135.68)    4.51                 0
 09/27/2018   13:09:57   (   0.16,-135.65) (  -0.50,-132.86)  319.28                80
 09/30/2018   01:28:41   (  -0.12,-135.58) (  -0.65,-137.94)  269.01                80
 10/01/2018   01:19:45   (  -0.13,-135.58) (  -0.04,-135.10)   54.14                80