Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2018 7 22.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 07/23/2018   07:17:27   (   0.02,-135.49) (   0.75,-132.14)  381.46                80
 07/23/2018   19:41:22   (   0.01,-135.53) (   0.38,-137.29)  200.57                80
 07/25/2018   19:26:30   (   0.00,-135.52) (  -0.23,-134.33)  134.79                80
 07/26/2018   07:50:34   (  -0.04,-135.49) (  -0.88,-139.52)  458.48                80
 07/27/2018   19:14:19   (  -0.00,-135.51) (  -0.90,-131.38)  469.63                80
 07/28/2018   07:38:22   (  -0.03,-135.47) (  -0.26,-136.56)  123.72                80
 07/30/2018   07:23:30   (  -0.02,-135.46) (   0.36,-133.60)  210.53                80
 07/30/2018   19:47:24   (   0.06,-135.49) (   0.78,-138.75)  371.98                80
 08/01/2018   19:35:14   (   0.05,-135.46) (   0.09,-135.81)   38.30                80
 08/03/2018   19:20:22   (   0.04,-135.44) (  -0.53,-132.85)  294.97                80
 08/04/2018   07:44:24   (  -0.08,-135.40) (  -0.62,-138.03)  298.71                80