Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2018 4 22.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 04/22/2018   19:13:47   (  -0.10,-135.41) (  -0.99,-131.25)  472.70                80
 04/23/2018   07:35:11   (   0.11,-135.42) (  -0.08,-136.45)  116.79                80
 04/25/2018   07:25:41   (   0.11,-135.45) (   0.52,-133.50)  221.34                80
 04/25/2018   19:46:57   (  -0.11,-135.45) (   0.59,-138.65)  364.92                80
 04/27/2018   19:34:48   (  -0.11,-135.47) (  -0.08,-135.72)   27.07                80
 04/29/2018   19:19:58   (  -0.11,-135.49) (  -0.70,-132.76)  310.57                80
 04/30/2018   07:41:22   (   0.12,-135.50) (  -0.43,-137.95)  279.31                80
 05/02/2018   07:31:52   (   0.12,-135.51) (   0.20,-135.00)   57.68                80
 05/04/2018   07:19:43   (   0.13,-135.52) (   0.89,-132.06)  393.84                80
 05/04/2018   19:40:59   (  -0.13,-135.52) (   0.21,-137.22)  192.75                80