Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2018 12 6.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 12/07/2018   07:12:17   (   0.16,-128.58) (  -0.16,-130.10)  173.28                80
 12/09/2018   06:57:26   (   0.16,-128.60) (   0.48,-127.15)  164.83                80
 12/09/2018   19:18:42   (  -0.14,-128.56) (   0.62,-132.31)  425.03                80
 12/11/2018   19:06:32   (  -0.14,-128.58) (   0.01,-129.35)   87.64                80
 12/13/2018   18:57:03   (  -0.14,-128.59) (  -0.59,-126.40)  248.91                80
 12/14/2018   07:18:28   (   0.12,-128.64) (  -0.50,-131.60)  335.95                80
 12/16/2018   07:03:41   (   0.12,-128.65) (   0.14,-128.66)    2.23                80
 12/18/2018   06:51:35   (   0.12,-128.65) (   0.77,-125.72)  333.32                80
 12/18/2018   19:12:51   (  -0.11,-128.60) (   0.40,-130.87)  259.17                80