Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2018 9 15.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 09/16/2018   07:26:02   (   0.31,-135.38) (   0.69,-133.65)  197.63                80
 09/16/2018   19:44:36   (  -0.32,-135.44) (   0.42,-138.80)  382.49                80
 09/18/2018   19:32:24   (  -0.31,-135.49) (  -0.26,-135.85)   40.41                80
 09/20/2018   19:22:51   (  -0.31,-135.53) (  -0.89,-132.89)  301.22                80
 09/21/2018   07:44:15   (   0.33,-135.50) (  -0.21,-138.08)  292.71                80
 09/23/2018   07:29:22   (   0.32,-135.54) (   0.44,-135.12)   48.40                80
 09/25/2018   07:17:08   (   0.32,-135.57) (   1.04,-132.15)  388.89                80
 09/25/2018   19:38:23   (  -0.33,-135.62) (   0.05,-137.30)  192.76                80
 09/27/2018   19:28:50   (  -0.33,-135.64) (  -0.62,-134.35)  147.31                80
 09/28/2018   07:50:13   (   0.34,-135.62) (  -0.51,-139.53)  445.51                80