Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2018 12 15.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 12/16/2018   07:06:13   (   0.12,-128.64) (   0.10,-128.62)    2.86                80
 12/18/2018   06:51:22   (   0.12,-128.64) (   0.74,-125.67)  337.14                80
 12/18/2018   19:12:37   (  -0.11,-128.59) (   0.38,-130.82)  254.23                80
 12/20/2018   19:03:06   (  -0.11,-128.58) (  -0.27,-127.87)   81.31                80
 12/22/2018   18:50:54   (  -0.11,-128.57) (  -0.88,-124.91)  416.07                80
 12/23/2018   07:12:18   (   0.10,-128.62) (  -0.23,-130.10)  168.23                80
 12/25/2018   06:57:26   (   0.10,-128.59) (   0.39,-127.14)  165.54                80
 12/25/2018   19:18:40   (  -0.08,-128.52) (   0.73,-132.29)  428.14                80
 12/27/2018   06:45:14   (   0.09,-128.57) (   1.02,-124.18)  499.16                80
 12/27/2018   19:06:28   (  -0.08,-128.50) (   0.10,-129.33)   94.32                80