Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2019 4 17.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 04/18/2019   06:45:19   (   0.06,-127.64) (   0.81,-124.16)  395.13                80
 04/18/2019   19:06:35   (  -0.06,-127.68) (   0.27,-129.32)  187.13                80
 04/20/2019   18:57:04   (  -0.07,-127.76) (  -0.37,-126.37)  157.68                80
 04/21/2019   07:18:28   (   0.07,-127.76) (  -0.75,-131.56)  432.21                80
 04/23/2019   07:06:17   (   0.08,-127.84) (  -0.10,-128.61)   88.07                80
 04/25/2019   06:51:26   (   0.08,-127.91) (   0.56,-125.66)  255.68                80
 04/25/2019   19:12:42   (  -0.08,-127.94) (   0.51,-130.82)  327.26                80
 04/27/2019   19:03:10   (  -0.09,-128.01) (  -0.09,-127.86)   16.54                80
 04/29/2019   18:50:59   (  -0.09,-128.07) (  -0.77,-124.91)  359.65                80
 04/30/2019   07:12:23   (   0.09,-128.08) (  -0.33,-130.10)  230.16                80