Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2017 9 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)
 09/29/2017   12:35:25   (   0.15,-135.47) (   0.42,-136.70)  139.38                80
 09/30/2017   12:26:36   (   0.16,-135.47) (  -0.19,-133.89)  180.00                80
 10/01/2017   12:15:07   (   0.16,-135.47) (  -0.85,-131.10)  499.24                80
 10/03/2017   00:45:29   (  -0.12,-135.36) (  -0.97,-139.02)  417.20                80
 10/04/2017   00:33:59   (  -0.13,-135.36) (  -0.34,-136.22)   97.93                80
 10/05/2017   00:25:10   (  -0.13,-135.36) (   0.29,-133.41)  221.19                80
 10/07/2017   12:44:01   (   0.10,-135.45) (   0.80,-138.54)  353.30                80
 10/08/2017   12:32:31   (   0.11,-135.43) (   0.18,-135.74)   35.00                80
 10/09/2017   12:23:42   (   0.12,-135.42) (  -0.44,-132.94)  283.03                80
 10/12/2017   00:42:31   (  -0.08,-135.27) (  -0.75,-138.05)  317.79                80