Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2018 8 19.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 08/19/2018   19:20:15   (   0.14,-135.03) (  -0.30,-132.79)  253.23                80
 08/20/2018   07:44:19   (  -0.18,-134.96) (  -0.80,-137.98)  343.32                80
 08/22/2018   07:32:07   (  -0.18,-134.88) (  -0.18,-135.03)   15.91                80
 08/24/2018   07:17:15   (  -0.17,-134.80) (   0.43,-132.07)  311.42                80
 08/24/2018   19:41:10   (   0.21,-134.82) (   0.70,-137.22)  271.54                80
 08/26/2018   19:26:18   (   0.20,-134.74) (   0.08,-134.26)   55.04                80
 08/28/2018   19:14:06   (   0.19,-134.65) (  -0.54,-131.30)  381.20                80
 08/29/2018   07:38:09   (  -0.23,-134.58) (  -0.62,-136.48)  215.66                80
 08/31/2018   07:23:17   (  -0.22,-134.48) (   0.00,-133.52)  109.69                80
 08/31/2018   19:47:12   (   0.26,-134.50) (   1.13,-138.67)  474.14                80