Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2020 1 2.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 01/04/2020   07:05:40   (   0.03,-128.36) (   0.01,-128.58)   25.56                80
 01/06/2020   06:50:48   (   0.04,-128.38) (   0.62,-125.62)  313.64                80
 01/06/2020   19:14:43   (  -0.03,-128.35) (   0.51,-130.77)  275.87                80
 01/08/2020   18:59:52   (  -0.03,-128.37) (  -0.16,-127.82)   62.31                80
 01/10/2020   18:47:40   (  -0.03,-128.38) (  -0.78,-124.86)  399.73                80
 01/11/2020   07:11:44   (   0.02,-128.42) (  -0.33,-130.05)  186.08                80
 01/13/2020   06:56:52   (   0.02,-128.42) (   0.29,-127.09)  150.77                80
 01/13/2020   19:20:47   (  -0.01,-128.38) (   0.83,-132.24)  439.31                80
 01/15/2020   06:44:40   (   0.02,-128.42) (   0.92,-124.13)  487.38                80
 01/15/2020   19:08:35   (  -0.01,-128.38) (   0.21,-129.28)  102.81                80