Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2018 9 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)
 09/20/2018   19:22:52   (  -0.31,-135.53) (  -0.84,-132.89)  299.53                80
 09/21/2018   07:44:17   (   0.33,-135.49) (  -0.20,-138.09)  294.91                80
 09/23/2018   07:29:24   (   0.32,-135.53) (   0.40,-135.13)   45.28                80
 09/25/2018   07:17:12   (   0.32,-135.55) (   1.06,-132.17)  384.98                80
 09/25/2018   19:38:27   (  -0.33,-135.60) (   0.05,-137.33)  196.65                80
 09/27/2018   19:28:55   (  -0.33,-135.62) (  -0.62,-134.37)  142.45                80
 09/28/2018   07:50:19   (   0.34,-135.60) (  -0.48,-139.57)  450.88                80
 09/29/2018   19:16:42   (  -0.33,-135.64) (  -1.23,-131.41)  480.76                80
 09/30/2018   07:38:06   (   0.34,-135.61) (   0.14,-136.60)  112.97                80
 10/02/2018   07:23:13   (   0.33,-135.61) (   0.75,-133.64)  224.04                80
 10/02/2018   19:44:28   (  -0.34,-135.64) (   0.36,-138.80)  359.80                80