Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2018 8 10.  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)  113.38                80
 08/11/2018   07:50:27   (  -0.14,-135.24) (  -1.03,-139.48)  482.57                80
 08/12/2018   19:14:13   (   0.09,-135.25) (  -0.75,-131.34)  443.97                80
 08/13/2018   07:38:15   (  -0.13,-135.19) (  -0.41,-136.52)  152.03                80
 08/15/2018   07:23:23   (  -0.11,-135.13) (   0.20,-133.56)  178.24                80
 08/15/2018   19:47:18   (   0.15,-135.17) (   0.93,-138.71)  403.55                80
 08/17/2018   19:35:06   (   0.15,-135.11) (   0.31,-135.75)   73.67                80
 08/19/2018   19:20:14   (   0.14,-135.05) (  -0.31,-132.79)  255.69                80
 08/20/2018   07:44:18   (  -0.18,-134.98) (  -0.79,-137.98)  340.71                80
 08/22/2018   07:29:26   (  -0.17,-134.91) (  -0.17,-135.02)   12.48                80