Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2017 8 27.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 08/28/2017   07:25:14   (   0.22,-135.03) (   0.57,-133.46)  179.20                80
 08/28/2017   19:43:49   (  -0.25,-135.11) (   0.51,-138.62)  399.75                80
 08/30/2017   19:31:39   (  -0.24,-135.10) (  -0.13,-135.67)   64.21                80
 09/01/2017   19:22:08   (  -0.23,-135.09) (  -0.76,-132.71)  270.59                80
 09/02/2017   07:43:31   (   0.26,-135.02) (  -0.36,-137.90)  328.15                80
 09/04/2017   07:31:20   (   0.25,-135.00) (   0.28,-134.95)    6.25                80
 09/06/2017   07:16:29   (   0.25,-134.97) (   0.87,-131.99)  339.23                80
 09/06/2017   19:37:44   (  -0.27,-135.03) (   0.21,-137.15)  241.66                80
 09/08/2017   19:28:13   (  -0.27,-135.00) (  -0.44,-134.20)   91.17                80
 09/10/2017   19:16:01   (  -0.26,-134.96) (  -1.03,-131.23)  423.39                80