Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2018 10 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)
 10/22/2018   19:22:30   (  -0.32,-135.45) (  -0.89,-132.84)  296.83                80
 10/23/2018   07:43:54   (   0.31,-135.41) (  -0.22,-138.03)  297.20                80
 10/25/2018   07:29:00   (   0.31,-135.36) (   0.36,-135.06)   33.71                80
 10/27/2018   07:16:47   (   0.31,-135.30) (   1.00,-132.10)  363.68                80
 10/27/2018   19:38:02   (  -0.31,-135.30) (   0.09,-137.26)  222.45                80
 10/29/2018   19:28:28   (  -0.30,-135.23) (  -0.49,-134.29)  106.64                80
 10/30/2018   07:49:52   (   0.29,-135.20) (  -0.61,-139.48)  486.35                80
 10/31/2018   19:16:15   (  -0.30,-135.15) (  -1.13,-131.33)  435.08                80
 11/01/2018   07:37:38   (   0.29,-135.12) (  -0.02,-136.51)  158.23                80
 11/03/2018   07:22:45   (   0.29,-135.04) (   0.63,-133.55)  169.54                80
 11/03/2018   19:43:59   (  -0.28,-135.02) (   0.52,-138.70)  418.77                80