Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2019 1 3.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 01/03/2019   06:51:21   (   0.07,-128.50) (   0.66,-125.65)  324.46                80
 01/03/2019   19:12:36   (  -0.05,-128.44) (   0.47,-130.80)  268.86                80
 01/05/2019   19:03:05   (  -0.05,-128.40) (  -0.19,-127.84)   63.22                80
 01/07/2019   18:50:53   (  -0.05,-128.36) (  -0.79,-124.88)  394.97                80
 01/08/2019   07:12:17   (   0.04,-128.41) (  -0.32,-130.07)  189.35                80
 01/10/2019   06:57:25   (   0.04,-128.36) (   0.29,-127.11)  141.90                80
 01/10/2019   19:18:40   (  -0.03,-128.28) (   0.84,-132.26)  453.04                80
 01/12/2019   06:45:13   (   0.04,-128.31) (   0.90,-124.15)  472.89                80
 01/12/2019   19:06:29   (  -0.03,-128.23) (   0.17,-129.31)  122.04                80
 01/14/2019   18:56:57   (  -0.03,-128.18) (  -0.44,-126.35)  208.52                80
 01/15/2019   07:18:20   (   0.02,-128.24) (  -0.66,-131.54)  374.97                80