Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2019 6 21.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 06/21/2019   06:45:12   (   0.12,-128.13) (   0.96,-124.18)  450.06                80
 06/21/2019   19:09:06   (  -0.10,-128.17) (   0.14,-129.33)  132.02                80
 06/23/2019   18:54:13   (  -0.11,-128.11) (  -0.45,-126.36)  198.73                80
 06/24/2019   07:18:17   (   0.08,-128.06) (  -0.66,-131.55)  397.29                80
 06/26/2019   07:06:05   (   0.09,-128.00) (  -0.01,-128.60)   67.03                80
 06/28/2019   06:51:12   (   0.10,-127.94) (   0.59,-125.63)  262.81                80
 06/28/2019   19:15:07   (  -0.07,-127.96) (   0.51,-130.78)  320.31                80
 06/30/2019   19:00:23   (  -0.08,-127.89) (  -0.09,-127.82)    8.72                71
 07/02/2019   18:48:01   (  -0.08,-127.82) (  -0.69,-124.85)  336.84                80
 07/03/2019   07:12:05   (   0.06,-127.76) (  -0.41,-130.04)  259.11                80