Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2018 9 6.  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)
 09/08/2018   13:26:17   (   0.26,-135.20) (   0.91,-138.05)  325.50                80
 09/09/2018   13:17:09   (   0.26,-135.23) (   0.26,-135.23)    0.75                66
 09/10/2018   13:05:48   (   0.27,-135.27) (  -0.39,-132.40)  327.01                80
 09/13/2018   01:24:35   (  -0.23,-135.28) (  -0.75,-137.49)  252.73                80
 09/14/2018   01:15:41   (  -0.24,-135.32) (  -0.10,-134.67)   73.40                80
 09/15/2018   01:04:06   (  -0.25,-135.35) (   0.56,-131.85)  399.50                80
 09/16/2018   13:34:08   (   0.20,-135.47) (   1.21,-139.69)  482.02                80
 09/17/2018   13:22:35   (   0.21,-135.50) (   0.50,-136.88)  156.61                80
 09/18/2018   13:13:41   (   0.22,-135.53) (  -0.15,-134.05)  168.70                80
 09/19/2018   13:02:06   (   0.22,-135.55) (  -0.80,-131.23)  493.83                80