Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-19
TLE Epoch: 2017 12 11.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NOAA-19 Lat/Lon    Distance(km)  Time Diff(sec)
 12/12/2017   08:26:20   (   0.02, -73.99) (  -0.50, -71.64)  267.40                80
 12/13/2017   08:14:45   (   0.03, -72.67) (  -0.90, -68.78)  444.46                80
 12/16/2017   20:21:53   (  -0.04, -68.03) (  -0.71, -70.86)  323.95                80
 12/17/2017   20:10:18   (  -0.04, -66.71) (  -0.31, -68.00)  146.34                80
 12/18/2017   20:01:23   (  -0.04, -65.40) (   0.03, -65.13)   31.19                80
 12/19/2017   19:49:47   (  -0.04, -64.09) (   0.37, -62.25)  209.10                80
 12/20/2017   19:38:12   (  -0.04, -62.78) (   0.72, -59.38)  387.16                80
 12/24/2017   07:45:02   (   0.05, -58.15) (   0.78, -61.41)  371.47                80
 12/25/2017   07:33:27   (   0.05, -56.84) (   0.43, -58.53)  192.68                80