Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2016 1 20.  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)
 01/21/2016   23:41:50   (   0.09,-134.99) (  -0.61,-138.10)  354.51                80
 01/22/2016   23:27:52   (   0.09,-135.02) (  -0.01,-135.34)   38.03                80
 01/23/2016   23:18:44   (   0.08,-135.05) (   0.64,-132.60)  278.56                50
 01/26/2016   11:38:34   (  -0.08,-135.18) (   0.56,-137.86)  306.95                80
 01/27/2016   11:27:16   (  -0.08,-135.21) (  -0.10,-135.12)    9.35                80
 01/28/2016   11:15:58   (  -0.08,-135.23) (  -0.71,-132.37)  325.54                80
 01/30/2016   23:40:36   (   0.08,-135.23) (  -0.48,-137.63)  273.39                80
 01/31/2016   23:26:38   (   0.08,-135.25) (   0.18,-134.89)   42.33                80
 02/01/2016   23:15:20   (   0.07,-135.27) (   0.79,-132.14)  357.75                80