Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2018 5 21.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 05/22/2018   19:26:20   (  -0.15,-135.26) (  -0.37,-134.30)  109.00                80
 05/23/2018   07:50:24   (   0.15,-135.22) (  -0.76,-139.49)  485.52                80
 05/24/2018   19:14:09   (  -0.16,-135.21) (  -0.96,-131.34)  439.15                80
 05/25/2018   07:38:14   (   0.15,-135.17) (  -0.12,-136.54)  155.41                80
 05/27/2018   07:23:23   (   0.15,-135.11) (   0.47,-133.58)  174.40                80
 05/27/2018   19:47:19   (  -0.14,-135.13) (   0.61,-138.74)  410.56                80
 05/29/2018   19:35:08   (  -0.14,-135.07) (   0.02,-135.78)   81.52                80
 05/31/2018   19:20:18   (  -0.15,-135.00) (  -0.64,-132.83)  246.89                80
 06/01/2018   07:44:22   (   0.14,-134.96) (  -0.49,-138.02)  348.20                80
 06/03/2018   07:32:11   (   0.15,-134.88) (   0.11,-135.06)   20.46                80