Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-19
TLE Epoch: 2017 12 9.  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)
 12/10/2017   08:46:51   (   0.01, -76.63) (   0.17, -77.39)   86.82                80
 12/11/2017   08:37:56   (   0.01, -75.30) (  -0.18, -74.52)   89.52                80
 12/12/2017   08:26:20   (   0.00, -73.98) (  -0.52, -71.65)  266.32                80
 12/13/2017   08:14:45   (   0.01, -72.66) (  -0.87, -68.77)  443.35                80
 12/16/2017   20:21:53   (  -0.02, -68.03) (  -0.68, -70.87)  324.45                80
 12/17/2017   20:10:18   (  -0.02, -66.71) (  -0.34, -68.00)  146.91                80
 12/18/2017   20:01:23   (  -0.02, -65.40) (   0.06, -65.13)   30.64                80
 12/19/2017   19:49:48   (  -0.02, -64.08) (   0.41, -62.26)  208.33                80
 12/20/2017   19:38:12   (  -0.02, -62.77) (   0.75, -59.39)  386.28                80