Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2019 9 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)
 09/21/2019   07:09:16   (   0.31,-127.91) (  -0.13,-130.11)  249.18                80
 09/23/2019   06:59:44   (   0.30,-127.84) (   0.45,-127.15)   79.32                80
 09/25/2019   06:47:32   (   0.30,-127.77) (   1.04,-124.18)  407.15                80
 09/25/2019   19:06:07   (  -0.31,-127.78) (   0.03,-129.35)  178.36                80
 09/27/2019   18:56:36   (  -0.31,-127.70) (  -0.56,-126.38)  149.15                80
 09/28/2019   07:18:00   (   0.32,-127.66) (  -0.49,-131.59)  446.50                80
 09/29/2019   18:44:25   (  -0.31,-127.62) (  -1.21,-123.44)  476.46                80
 09/30/2019   07:05:48   (   0.32,-127.58) (   0.10,-128.63)  119.34                80
 10/02/2019   06:50:56   (   0.31,-127.49) (   0.70,-125.66)  207.46                80
 10/02/2019   19:12:12   (  -0.32,-127.49) (   0.37,-130.83)  379.35                80
 10/04/2019   19:00:00   (  -0.31,-127.40) (  -0.23,-127.87)   52.98                80