Simultaneous Nadir Overpasses (SNOs) between GOES-16 and TERRA
TLE Epoch: 2018 12 18.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 12/20/2018   03:23:50   (  -0.01, -75.17) (   0.46, -73.08)  238.67                80
 12/20/2018   15:42:25   (   0.01, -75.18) (   0.67, -78.23)  346.40                80
 12/22/2018   15:30:14   (   0.01, -75.20) (   0.03, -75.27)    8.35                80
 12/24/2018   15:20:43   (   0.02, -75.22) (  -0.61, -72.32)  330.17                80
 12/25/2018   03:42:07   (  -0.02, -75.22) (  -0.50, -77.51)  260.42                80
 12/27/2018   03:29:56   (  -0.03, -75.24) (   0.14, -74.55)   78.93                80
 12/29/2018   03:15:04   (  -0.04, -75.27) (   0.74, -71.59)  418.86                80
 12/29/2018   15:36:20   (   0.04, -75.29) (   0.34, -76.75)  165.67                80
 12/31/2018   15:26:48   (   0.04, -75.33) (  -0.26, -73.79)  175.17                80