Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2016 12 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)
 12/21/2016   00:04:18   (   0.11,-135.09) (  -0.30,-136.82)  197.11                80
 12/21/2016   23:55:34   (   0.10,-135.06) (   0.34,-134.04)  116.92                80
 12/22/2016   23:44:09   (   0.10,-135.04) (   0.97,-131.26)  430.88                80
 12/24/2016   12:14:28   (  -0.11,-135.03) (   0.87,-139.17)  474.01                80
 12/25/2016   12:03:04   (  -0.11,-135.00) (   0.19,-136.41)  160.53                80
 12/26/2016   11:54:20   (  -0.10,-134.96) (  -0.43,-133.63)  152.85                80
 12/27/2016   11:42:55   (  -0.09,-134.93) (  -1.06,-130.85)  466.00                80
 12/29/2016   00:13:29   (   0.10,-134.84) (  -0.80,-138.83)  454.42                80
 12/30/2016   00:02:04   (   0.10,-134.80) (  -0.16,-136.05)  141.55                80
 12/30/2016   23:53:19   (   0.09,-134.76) (   0.43,-133.26)  171.21                80
 12/31/2016   23:41:54   (   0.09,-134.72) (   1.08,-130.49)  483.78                80