Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2018 6 27.  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)
 06/28/2018   01:11:19   (   0.23,-135.10) (  -0.19,-136.93)  209.08                80
 06/29/2018   01:02:25   (   0.23,-135.13) (   0.46,-134.11)  116.01                80
 06/30/2018   00:50:52   (   0.22,-135.16) (   1.10,-131.30)  441.00                80
 07/01/2018   13:21:06   (  -0.25,-135.20) (   0.66,-139.19)  454.72                80
 07/02/2018   13:09:33   (  -0.25,-135.23) (   0.02,-136.37)  130.09                80
 07/03/2018   13:00:39   (  -0.24,-135.25) (  -0.62,-133.55)  194.45                80
 07/06/2018   01:19:18   (   0.26,-135.31) (  -0.50,-138.61)  376.21                80
 07/07/2018   01:07:44   (   0.26,-135.34) (   0.15,-135.79)   52.08                80
 07/08/2018   00:58:51   (   0.26,-135.36) (   0.80,-132.97)  271.80                80
 07/10/2018   13:17:32   (  -0.28,-135.39) (   0.33,-138.04)  302.30                80
 07/11/2018   13:08:38   (  -0.28,-135.40) (  -0.33,-135.22)   20.68                80