Simultaneous Nadir Overpasses (SNOs) between GOES-16 and TERRA
TLE Epoch: 2018 12 19.  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   03:21:10   (  -0.01, -75.17) (   0.46, -73.08)  238.75                80
 12/20/2018   15:42:25   (   0.01, -75.19) (   0.67, -78.23)  346.11                80
 12/22/2018   15:30:14   (   0.01, -75.20) (   0.04, -75.27)    8.16                80
 12/24/2018   15:20:43   (   0.02, -75.22) (  -0.59, -72.32)  330.56                80
 12/25/2018   03:39:27   (  -0.02, -75.22) (  -0.53, -77.50)  260.22                80
 12/27/2018   03:27:16   (  -0.03, -75.25) (   0.10, -74.55)   79.09                80
 12/29/2018   03:15:05   (  -0.04, -75.28) (   0.73, -71.59)  419.07                80
 12/29/2018   15:36:21   (   0.04, -75.30) (   0.34, -76.75)  165.31                80
 12/31/2018   15:26:50   (   0.04, -75.34) (  -0.29, -73.80)  175.46                80
 01/01/2019   03:48:14   (  -0.03, -75.35) (  -0.83, -78.99)  414.52                80