Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2018 9 26.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 09/27/2018   19:28:56   (  -0.33,-135.63) (  -0.62,-134.38)  143.35                80
 09/28/2018   07:50:19   (   0.34,-135.59) (  -0.48,-139.57)  451.63                80
 09/29/2018   19:16:43   (  -0.33,-135.65) (  -1.21,-131.41)  481.73                80
 09/30/2018   07:38:07   (   0.34,-135.61) (   0.12,-136.60)  113.66                80
 10/02/2018   07:23:15   (   0.33,-135.61) (   0.78,-133.65)  223.41                80
 10/02/2018   19:44:29   (  -0.34,-135.65) (   0.34,-138.80)  358.77                80
 10/04/2018   19:32:17   (  -0.33,-135.65) (  -0.32,-135.85)   22.60                80
 10/06/2018   19:22:44   (  -0.33,-135.64) (  -0.92,-132.89)  313.60                80
 10/07/2018   07:44:08   (   0.34,-135.61) (  -0.17,-138.08)  280.57                80
 10/09/2018   07:29:15   (   0.34,-135.60) (   0.44,-135.12)   54.91                80