Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2018 1 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)
 01/23/2018   19:19:00   (   0.02,-134.88) (  -0.50,-132.53)  267.83                80
 01/24/2018   07:43:03   (  -0.02,-134.92) (  -0.60,-137.72)  317.44                80
 01/26/2018   07:28:11   (  -0.02,-134.99) (   0.02,-134.76)   26.87                80
 01/28/2018   07:16:01   (  -0.01,-135.06) (   0.70,-131.81)  370.18                80
 01/28/2018   19:37:15   (   0.01,-135.05) (   0.43,-136.96)  217.22                80
 01/30/2018   19:27:43   (   0.02,-135.11) (  -0.19,-134.00)  125.66                80
 01/31/2018   07:49:07   (  -0.02,-135.15) (  -0.90,-139.19)  459.74                80
 02/01/2018   19:15:31   (   0.03,-135.16) (  -0.82,-131.04)  468.39                80
 02/02/2018   07:36:55   (  -0.03,-135.20) (  -0.26,-136.23)  117.20                80
 02/04/2018   07:22:03   (  -0.03,-135.26) (   0.37,-133.27)  225.07                80
 02/04/2018   19:43:19   (   0.03,-135.24) (   0.70,-138.43)  363.10                80