Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2021 5 27.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 05/28/2021   07:15:59   (   0.06,-128.40) (  -0.62,-131.54)  357.58                80
 05/30/2021   07:03:46   (   0.07,-128.42) (   0.06,-128.59)   19.06                80
 06/01/2021   06:48:52   (   0.07,-128.44) (   0.68,-125.63)  319.84                80
 06/01/2021   19:10:07   (  -0.08,-128.45) (   0.40,-130.79)  265.44                80
 06/03/2021   19:00:33   (  -0.08,-128.47) (  -0.22,-127.83)   73.58                80
 06/05/2021   18:48:19   (  -0.08,-128.50) (  -0.85,-124.87)  412.48                80
 06/06/2021   07:09:43   (   0.08,-128.50) (  -0.23,-130.06)  177.02                80
 06/08/2021   06:54:49   (   0.08,-128.52) (   0.41,-127.11)  161.01                80
 06/08/2021   19:16:03   (  -0.08,-128.51) (   0.74,-132.25)  426.27                80
 06/10/2021   06:42:34   (   0.08,-128.52) (   0.98,-124.13)  498.32                80
 06/10/2021   19:03:49   (  -0.08,-128.51) (   0.10,-129.29)   88.91                80