Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2018 6 13.  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)
 06/14/2018   13:16:35   (  -0.17,-134.53) (   0.81,-138.61)  466.72                80
 06/15/2018   13:05:02   (  -0.17,-134.58) (   0.13,-135.80)  139.80                80
 06/16/2018   12:56:10   (  -0.16,-134.63) (  -0.56,-133.00)  187.01                80
 06/19/2018   01:14:52   (   0.19,-134.76) (  -0.57,-138.07)  377.34                80
 06/20/2018   01:03:18   (   0.18,-134.81) (   0.08,-135.25)   50.53                80
 06/21/2018   00:54:25   (   0.18,-134.85) (   0.72,-132.43)  276.20                80
 06/23/2018   13:13:05   (  -0.20,-134.95) (   0.41,-137.50)  291.27                80
 06/24/2018   13:04:12   (  -0.20,-134.99) (  -0.28,-134.69)   34.94                80
 06/25/2018   12:52:39   (  -0.20,-135.03) (  -0.91,-131.87)  361.00                80