Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2015 9 21.  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)
 09/21/2015   23:10:37   (  -0.28,-135.27) (   0.32,-132.76)  286.93                80
 09/24/2015   11:30:05   (   0.24,-135.24) (   0.88,-138.06)  321.40                80
 09/25/2015   11:18:50   (   0.25,-135.23) (   0.29,-135.32)   11.07                80
 09/26/2015   11:10:15   (   0.25,-135.22) (  -0.37,-132.60)  299.43                80
 09/28/2015   23:29:41   (  -0.22,-135.18) (  -0.86,-137.88)  308.56                80
 09/29/2015   23:21:07   (  -0.23,-135.17) (  -0.21,-135.16)    2.16                80
 09/30/2015   23:09:51   (  -0.23,-135.15) (   0.38,-132.42)  311.46                80
 10/03/2015   11:29:18   (   0.20,-135.10) (   0.79,-137.72)  298.28                80
 10/04/2015   11:20:43   (   0.20,-135.08) (   0.18,-134.98)   11.06                80