Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2017 11 18.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 11/18/2017   19:31:20   (  -0.19,-134.95) (  -0.07,-135.59)   72.63                80
 11/20/2017   19:21:48   (  -0.19,-135.02) (  -0.69,-132.63)  271.27                80
 11/21/2017   07:43:12   (   0.17,-135.09) (  -0.41,-137.82)  310.35                80
 11/23/2017   07:28:20   (   0.17,-135.15) (   0.22,-134.86)   32.68                80
 11/25/2017   07:16:08   (   0.17,-135.20) (   0.86,-131.90)  375.23                80
 11/25/2017   19:37:23   (  -0.15,-135.15) (   0.27,-137.05)  216.17                80
 11/27/2017   19:27:51   (  -0.15,-135.20) (  -0.38,-134.09)  125.97                80
 11/28/2017   07:49:15   (   0.14,-135.28) (  -0.70,-139.28)  454.91                80
 11/29/2017   19:15:39   (  -0.15,-135.24) (  -1.04,-131.13)  467.51                80
 11/30/2017   07:37:02   (   0.14,-135.32) (  -0.10,-136.31)  113.74                80