Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2018 6 28.  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)
 06/29/2018   01:02:25   (   0.23,-135.13) (   0.45,-134.11)  116.09                80
 06/30/2018   00:50:52   (   0.22,-135.16) (   1.10,-131.29)  441.07                80
 07/01/2018   13:21:06   (  -0.25,-135.20) (   0.67,-139.19)  454.73                80
 07/02/2018   13:09:32   (  -0.25,-135.23) (   0.02,-136.37)  130.12                80
 07/03/2018   13:00:39   (  -0.24,-135.25) (  -0.62,-133.55)  194.40                80
 07/06/2018   01:19:18   (   0.26,-135.31) (  -0.51,-138.61)  376.28                80
 07/07/2018   01:07:44   (   0.26,-135.33) (   0.14,-135.79)   52.19                80
 07/08/2018   00:58:51   (   0.26,-135.35) (   0.79,-132.97)  271.69                80
 07/10/2018   13:17:32   (  -0.28,-135.39) (   0.34,-138.04)  302.50                80
 07/11/2018   13:08:38   (  -0.28,-135.40) (  -0.31,-135.22)   20.46                80
 07/12/2018   12:57:05   (  -0.28,-135.41) (  -0.97,-132.40)  343.20                80