Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2018 6 13.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 06/14/2018   07:11:17   (   0.14,-134.53) (   0.98,-130.63)  443.28                80
 06/14/2018   19:35:12   (  -0.13,-134.56) (   0.15,-135.78)  139.56                80
 06/16/2018   19:20:22   (  -0.14,-134.65) (  -0.52,-132.83)  206.46                80
 06/17/2018   07:44:26   (   0.12,-134.67) (  -0.61,-138.02)  381.36                80
 06/19/2018   07:32:16   (   0.13,-134.77) (   0.06,-135.08)   35.59                80
 06/21/2018   07:17:26   (   0.14,-134.86) (   0.74,-132.14)  310.01                80
 06/21/2018   19:41:21   (  -0.11,-134.89) (   0.40,-137.28)  272.81                80
 06/23/2018   19:26:31   (  -0.12,-134.97) (  -0.28,-134.34)   72.37                80
 06/25/2018   19:14:20   (  -0.13,-135.05) (  -0.90,-131.39)  416.96                80
 06/26/2018   07:38:24   (   0.10,-135.07) (  -0.22,-136.57)  171.29                80