Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2018 6 30.  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)
 07/01/2018   13:21:06   (  -0.25,-135.20) (   0.67,-139.18)  454.73                80
 07/02/2018   13:09:32   (  -0.25,-135.23) (   0.02,-136.36)  130.12                80
 07/03/2018   13:00:39   (  -0.24,-135.25) (  -0.62,-133.54)  194.40                80
 07/06/2018   01:19:18   (   0.26,-135.31) (  -0.51,-138.61)  376.04                80
 07/07/2018   01:07:44   (   0.26,-135.34) (   0.15,-135.79)   51.92                80
 07/08/2018   00:58:51   (   0.26,-135.35) (   0.80,-132.97)  271.96                80
 07/10/2018   13:17:32   (  -0.28,-135.39) (   0.32,-138.04)  302.37                80
 07/11/2018   13:08:38   (  -0.28,-135.40) (  -0.33,-135.22)   20.65                80
 07/12/2018   12:57:05   (  -0.28,-135.41) (  -0.99,-132.41)  343.37                80