Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2018 12 31.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 01/01/2019   07:06:13   (   0.06,-128.54) (   0.06,-128.61)    8.02                80
 01/03/2019   06:51:21   (   0.07,-128.51) (   0.65,-125.64)  324.74                80
 01/03/2019   19:12:37   (  -0.05,-128.44) (   0.42,-130.81)  268.38                80
 01/05/2019   19:03:05   (  -0.05,-128.41) (  -0.17,-127.84)   63.98                80
 01/07/2019   18:50:54   (  -0.05,-128.37) (  -0.82,-124.89)  396.04                80
 01/08/2019   07:12:18   (   0.04,-128.42) (  -0.30,-130.08)  188.33                80
 01/10/2019   06:57:26   (   0.04,-128.38) (   0.29,-127.11)  143.16                80
 01/10/2019   19:18:40   (  -0.03,-128.30) (   0.84,-132.26)  451.65                80
 01/12/2019   06:45:15   (   0.04,-128.33) (   0.95,-124.16)  474.37                80
 01/12/2019   19:06:30   (  -0.03,-128.25) (   0.18,-129.31)  120.40                80