Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2018 10 20.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 10/20/2018   19:32:03   (  -0.32,-135.49) (  -0.24,-135.80)   35.45                80
 10/22/2018   19:22:30   (  -0.32,-135.45) (  -0.87,-132.84)  296.42                80
 10/23/2018   07:43:54   (   0.31,-135.41) (  -0.23,-138.03)  297.34                80
 10/25/2018   07:29:01   (   0.31,-135.36) (   0.40,-135.07)   33.60                80
 10/27/2018   07:16:47   (   0.31,-135.30) (   0.98,-132.10)  363.47                80
 10/27/2018   19:38:02   (  -0.31,-135.30) (   0.11,-137.26)  222.92                80
 10/29/2018   19:28:28   (  -0.30,-135.23) (  -0.47,-134.29)  106.18                80
 10/30/2018   07:49:52   (   0.29,-135.20) (  -0.62,-139.48)  486.61                80
 10/31/2018   19:16:15   (  -0.30,-135.15) (  -1.11,-131.33)  434.53                80
 11/01/2018   07:37:38   (   0.29,-135.12) (  -0.04,-136.51)  158.53                80