Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2018 12 4.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 12/04/2018   19:03:05   (  -0.17,-128.52) (  -0.29,-127.88)   72.33                80
 12/06/2018   18:50:53   (  -0.17,-128.55) (  -0.96,-124.92)  413.02                80
 12/07/2018   07:12:15   (   0.16,-128.59) (  -0.16,-130.10)  172.45                80
 12/09/2018   06:57:21   (   0.16,-128.61) (   0.45,-127.13)  167.30                80
 12/09/2018   19:18:36   (  -0.14,-128.57) (   0.66,-132.28)  422.20                80
 12/11/2018   19:06:23   (  -0.14,-128.59) (  -0.01,-129.32)   82.56                80
 12/13/2018   18:56:49   (  -0.14,-128.61) (  -0.61,-126.35)  256.76                80
 12/14/2018   07:18:12   (   0.12,-128.66) (  -0.52,-131.53)  327.10                80
 12/16/2018   07:03:19   (   0.12,-128.67) (   0.15,-128.58)   11.38                80
 12/18/2018   06:51:05   (   0.13,-128.68) (   0.75,-125.60)  349.40                80