Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2018 12 22.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 12/22/2018   18:50:55   (  -0.11,-128.59) (  -0.90,-124.91)  418.17                80
 12/23/2018   07:12:19   (   0.10,-128.63) (  -0.21,-130.10)  167.31                80
 12/25/2018   06:57:28   (   0.10,-128.61) (   0.43,-127.15)  166.87                80
 12/25/2018   19:18:43   (  -0.08,-128.55) (   0.71,-132.29)  425.43                80
 12/27/2018   19:06:32   (  -0.08,-128.53) (   0.07,-129.34)   91.30                80
 12/29/2018   18:57:00   (  -0.08,-128.51) (  -0.52,-126.37)  242.73                80
 12/30/2018   07:18:24   (   0.06,-128.57) (  -0.59,-131.56)  341.23                80
 01/01/2019   07:06:13   (   0.07,-128.54) (   0.05,-128.61)    7.85                80
 01/03/2019   06:51:22   (   0.07,-128.51) (   0.71,-125.66)  325.01                80
 01/03/2019   19:12:37   (  -0.06,-128.44) (   0.43,-130.81)  269.20                80