Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2018 5 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)
 05/15/2018   19:20:11   (  -0.14,-135.40) (  -0.71,-132.81)  295.34                80
 05/16/2018   07:44:15   (   0.14,-135.37) (  -0.43,-138.00)  298.65                80
 05/18/2018   07:32:05   (   0.14,-135.33) (   0.20,-135.05)   32.48                80
 05/20/2018   07:19:55   (   0.15,-135.29) (   0.82,-132.10)  362.86                80
 05/20/2018   19:41:11   (  -0.14,-135.30) (   0.27,-137.26)  222.16                80
 05/22/2018   19:26:21   (  -0.15,-135.25) (  -0.36,-134.30)  107.81                80
 05/23/2018   07:50:25   (   0.14,-135.21) (  -0.78,-139.49)  486.80                80
 05/24/2018   19:14:11   (  -0.16,-135.20) (  -0.98,-131.35)  437.64                80
 05/25/2018   07:38:15   (   0.15,-135.16) (  -0.16,-136.54)  156.98                80
 05/27/2018   07:23:25   (   0.15,-135.11) (   0.47,-133.59)  172.48                80
 05/27/2018   19:47:20   (  -0.14,-135.12) (   0.62,-138.75)  412.54                80