Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2017 9 7.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 09/08/2017   19:28:14   (  -0.27,-135.11) (  -0.46,-134.20)  103.14                80
 09/09/2017   07:49:37   (   0.29,-135.07) (  -0.65,-139.39)  491.42                80
 09/10/2017   19:16:03   (  -0.26,-135.17) (  -1.11,-131.25)  445.78                80
 09/11/2017   07:37:27   (   0.28,-135.13) (  -0.00,-136.44)  149.21                80
 09/13/2017   07:22:36   (   0.27,-135.17) (   0.65,-133.49)  192.17                80
 09/13/2017   19:43:51   (  -0.29,-135.23) (   0.42,-138.65)  388.54                80
 09/15/2017   19:31:39   (  -0.28,-135.27) (  -0.17,-135.69)   47.79                80
 09/17/2017   19:22:08   (  -0.28,-135.31) (  -0.83,-132.74)  292.62                80
 09/18/2017   07:43:32   (   0.29,-135.29) (  -0.28,-137.93)  301.00                80
 09/20/2017   07:28:41   (   0.29,-135.32) (   0.38,-134.98)   39.01                80