Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2017 12 29.  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)
 12/30/2017   00:38:15   (   0.10,-135.20) (   0.21,-134.69)   58.50                80
 12/31/2017   00:26:44   (   0.09,-135.18) (   0.87,-131.88)  376.25                80
 01/02/2018   12:48:01   (  -0.09,-135.16) (   0.31,-136.94)  202.86                80
 01/03/2018   12:39:11   (  -0.08,-135.13) (  -0.34,-134.13)  114.44                80
 01/04/2018   12:27:39   (  -0.08,-135.10) (  -0.93,-131.32)  431.62                80
 01/06/2018   01:00:46   (   0.08,-135.01) (  -0.89,-139.25)  483.70                80
 01/07/2018   00:49:14   (   0.08,-134.98) (  -0.28,-136.44)  166.79                80
 01/08/2018   00:35:04   (   0.08,-134.95) (   0.38,-133.63)  150.14                80
 01/09/2018   00:23:33   (   0.08,-134.92) (   1.04,-130.83)  466.97                80
 01/10/2018   12:56:21   (  -0.08,-134.91) (   0.78,-138.70)  431.99                80
 01/11/2018   12:44:50   (  -0.08,-134.87) (   0.19,-135.88)  115.33                80
 01/12/2018   12:36:00   (  -0.07,-134.84) (  -0.47,-133.07)  201.23                80