Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2018 7 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)
 07/18/2018   13:28:08   (  -0.31,-135.49) (   0.69,-139.69)  479.75                80
 07/19/2018   13:16:35   (  -0.31,-135.50) (   0.03,-136.87)  157.10                80
 07/20/2018   13:03:06   (  -0.31,-135.51) (  -0.64,-134.06)  165.45                35
 07/21/2018   12:53:28   (  -0.31,-135.51) (  -1.31,-131.24)  487.83                80
 07/23/2018   01:23:40   (   0.32,-135.52) (  -0.52,-139.11)  410.16                80
 07/24/2018   01:12:07   (   0.32,-135.52) (   0.14,-136.30)   88.15                80
 07/25/2018   01:03:13   (   0.32,-135.52) (   0.80,-133.48)  233.68                80
 07/27/2018   13:24:31   (  -0.34,-135.51) (   0.33,-138.53)  344.03                80
 07/28/2018   13:12:57   (  -0.34,-135.51) (  -0.28,-135.71)   22.60                80
 07/29/2018   12:58:43   (  -0.34,-135.51) (  -0.96,-132.89)  298.78                80