Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2018 8 3.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 08/03/2018   19:20:22   (   0.04,-135.44) (  -0.49,-132.84)  294.98                80
 08/04/2018   07:44:25   (  -0.08,-135.38) (  -0.61,-138.03)  300.40                80
 08/06/2018   07:29:33   (  -0.07,-135.35) (   0.01,-135.07)   31.66                80
 08/08/2018   07:17:21   (  -0.07,-135.30) (   0.63,-132.11)  362.74                80
 08/08/2018   19:41:16   (   0.11,-135.33) (   0.50,-137.26)  219.14                80
 08/10/2018   19:26:24   (   0.09,-135.28) (  -0.12,-134.30)  111.06                80
 08/11/2018   07:50:27   (  -0.13,-135.22) (  -1.03,-139.48)  484.80                80
 08/12/2018   19:14:12   (   0.08,-135.22) (  -0.75,-131.35)  440.98                80
 08/13/2018   07:38:15   (  -0.13,-135.16) (  -0.40,-136.53)  154.95                80
 08/15/2018   07:23:23   (  -0.11,-135.10) (   0.23,-133.57)  174.69                80
 08/15/2018   19:47:18   (   0.15,-135.13) (   0.90,-138.72)  407.64                80