Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2018 10 19.  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   19:32:04   (  -0.32,-135.49) (  -0.28,-135.80)   35.35                80
 10/22/2018   19:22:30   (  -0.32,-135.45) (  -0.85,-132.83)  296.65                80
 10/23/2018   07:43:54   (   0.31,-135.41) (  -0.25,-138.02)  296.90                80
 10/25/2018   07:29:01   (   0.31,-135.36) (   0.39,-135.06)   33.97                80
 10/27/2018   07:16:47   (   0.31,-135.30) (   0.97,-132.09)  364.02                80
 10/27/2018   19:38:02   (  -0.31,-135.30) (   0.13,-137.25)  222.60                80
 10/29/2018   19:28:29   (  -0.30,-135.22) (  -0.51,-134.29)  106.51                80
 10/30/2018   07:49:51   (   0.29,-135.20) (  -0.64,-139.47)  486.00                80
 10/31/2018   19:16:15   (  -0.30,-135.15) (  -1.10,-131.32)  434.96                80
 11/01/2018   07:37:38   (   0.29,-135.12) (   0.01,-136.51)  157.85                80