Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2015 9 18.  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)
 09/19/2015   23:30:26   (  -0.27,-135.28) (  -0.97,-138.21)  335.91                80
 09/20/2015   23:19:12   (  -0.28,-135.27) (  -0.33,-135.49)   24.56                80
 09/21/2015   23:10:37   (  -0.28,-135.27) (   0.31,-132.76)  286.50                80
 09/24/2015   11:30:05   (   0.24,-135.24) (   0.89,-138.06)  321.45                80
 09/25/2015   11:21:31   (   0.25,-135.23) (   0.24,-135.33)   11.41                80
 09/26/2015   11:10:15   (   0.25,-135.22) (  -0.35,-132.60)  299.35                80
 09/28/2015   23:29:42   (  -0.22,-135.18) (  -0.82,-137.90)  309.04                80
 09/29/2015   23:19:57   (  -0.23,-135.17) (  -0.23,-135.16)    1.11                10
 09/30/2015   23:09:52   (  -0.23,-135.15) (   0.42,-132.43)  310.99                80