Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2019 4 25.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 04/25/2019   06:51:27   (   0.08,-127.89) (   0.54,-125.66)  253.22                80
 04/25/2019   19:12:43   (  -0.08,-127.93) (   0.54,-130.82)  328.37                80
 04/27/2019   19:03:12   (  -0.09,-127.99) (  -0.10,-127.87)   14.28                80
 04/29/2019   18:51:01   (  -0.09,-128.05) (  -0.74,-124.91)  356.56                80
 04/30/2019   07:12:25   (   0.09,-128.04) (  -0.37,-130.10)  235.22                80
 05/02/2019   06:57:34   (   0.09,-128.10) (   0.27,-127.15)  106.79                80
 05/02/2019   19:18:49   (  -0.09,-128.13) (   0.80,-132.31)  475.33                80
 05/04/2019   06:45:23   (   0.10,-128.15) (   0.92,-124.20)  448.26                80
 05/04/2019   19:06:38   (  -0.10,-128.18) (   0.15,-129.36)  133.95                80
 05/06/2019   18:57:08   (  -0.10,-128.23) (  -0.51,-126.41)  206.67                80
 05/07/2019   07:18:31   (   0.10,-128.21) (  -0.60,-131.60)  385.27                80