Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2018 1 31.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 01/31/2018   07:49:11   (  -0.02,-135.15) (  -0.86,-139.20)  460.28                80
 02/01/2018   19:15:35   (   0.03,-135.18) (  -0.82,-131.05)  469.07                80
 02/02/2018   07:37:00   (  -0.03,-135.21) (  -0.24,-136.25)  118.01                80
 02/04/2018   07:22:09   (  -0.03,-135.26) (   0.37,-133.29)  223.90                80
 02/04/2018   19:43:25   (   0.03,-135.26) (   0.71,-138.45)  362.96                80
 02/06/2018   19:31:15   (   0.03,-135.31) (   0.05,-135.50)   21.60                80
 02/08/2018   19:21:45   (   0.02,-135.36) (  -0.60,-132.56)  319.26                80
 02/09/2018   07:43:08   (  -0.02,-135.39) (  -0.53,-137.74)  267.82                80
 02/11/2018   07:28:18   (  -0.01,-135.43) (   0.12,-134.80)   71.80                80
 02/13/2018   07:16:09   (  -0.00,-135.46) (   0.76,-131.85)  411.00                80
 02/13/2018   19:37:24   (  -0.00,-135.45) (   0.34,-137.00)  177.05                80