Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2018 8 9.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 08/10/2018   19:26:25   (   0.10,-135.30) (  -0.13,-134.30)  113.33                80
 08/11/2018   07:50:27   (  -0.14,-135.24) (  -1.03,-139.48)  482.71                80
 08/12/2018   19:14:13   (   0.09,-135.25) (  -0.75,-131.34)  443.86                80
 08/13/2018   07:38:15   (  -0.13,-135.18) (  -0.41,-136.52)  152.21                80
 08/15/2018   07:23:24   (  -0.11,-135.13) (   0.22,-133.56)  178.03                80
 08/15/2018   19:47:18   (   0.15,-135.17) (   0.91,-138.71)  403.71                80
 08/17/2018   19:35:06   (   0.15,-135.11) (   0.29,-135.76)   73.81                80
 08/19/2018   19:20:14   (   0.14,-135.04) (  -0.34,-132.80)  255.49                80
 08/20/2018   07:44:17   (  -0.18,-134.98) (  -0.82,-137.98)  340.92                80
 08/22/2018   07:32:05   (  -0.18,-134.91) (  -0.19,-135.02)   12.29                80