Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2015 9 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)
 09/30/2015   23:09:52   (  -0.24,-135.15) (   0.41,-132.42)  311.26                80
 10/03/2015   11:29:17   (   0.20,-135.09) (   0.81,-137.71)  298.96                80
 10/04/2015   11:18:02   (   0.21,-135.07) (   0.20,-134.97)   10.48                80
 10/05/2015   11:09:27   (   0.21,-135.04) (  -0.41,-132.24)  319.64                80
 10/07/2015   23:28:54   (  -0.17,-134.98) (  -0.76,-137.54)  292.46                80
 10/08/2015   23:20:19   (  -0.18,-134.95) (  -0.16,-134.80)   16.73                80
 10/09/2015   23:09:04   (  -0.18,-134.93) (   0.50,-132.08)  325.76                80
 10/12/2015   11:28:28   (   0.15,-134.87) (   0.70,-137.36)  284.41                80
 10/13/2015   11:19:53   (   0.15,-134.83) (   0.08,-134.63)   24.38                80
 10/14/2015   11:08:36   (   0.16,-134.80) (  -0.48,-131.88)  332.69                80