Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2019 7 20.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 07/21/2019   06:57:13   (   0.01,-127.98) (   0.23,-127.09)  100.85                80
 07/21/2019   19:21:08   (   0.02,-128.00) (   0.91,-132.24)  482.71                80
 07/23/2019   06:45:03   (   0.02,-128.03) (   0.87,-124.14)  442.88                80
 07/23/2019   19:08:57   (   0.01,-128.05) (   0.27,-129.29)  140.63                80
 07/25/2019   18:54:06   (   0.01,-128.11) (  -0.37,-126.34)  200.89                80
 07/26/2019   07:18:10   (  -0.04,-128.12) (  -0.75,-131.53)  387.45                80
 07/28/2019   07:05:59   (  -0.04,-128.16) (  -0.11,-128.58)   46.97                80
 07/30/2019   06:51:08   (  -0.03,-128.20) (   0.53,-125.62)  292.58                80
 07/30/2019   19:15:03   (   0.06,-128.20) (   0.61,-130.77)  292.37                80
 08/01/2019   19:00:12   (   0.05,-128.23) (  -0.02,-127.82)   46.51                80