Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2018 12 1.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 12/02/2018   06:51:25   (   0.19,-128.49) (   0.78,-125.70)  318.16                80
 12/02/2018   19:12:40   (  -0.17,-128.49) (   0.33,-130.85)  268.58                80
 12/04/2018   19:03:07   (  -0.17,-128.52) (  -0.31,-127.89)   72.41                80
 12/06/2018   18:50:54   (  -0.17,-128.55) (  -0.95,-124.92)  412.90                80
 12/07/2018   07:12:17   (   0.16,-128.59) (  -0.19,-130.10)  173.10                80
 12/09/2018   06:57:25   (   0.16,-128.61) (   0.49,-127.15)  166.41                80
 12/09/2018   19:18:39   (  -0.14,-128.58) (   0.63,-132.30)  422.70                80
 12/11/2018   19:06:26   (  -0.14,-128.60) (   0.02,-129.33)   83.40                80
 12/13/2018   18:56:54   (  -0.14,-128.62) (  -0.59,-126.37)  255.50                80
 12/14/2018   07:18:17   (   0.12,-128.67) (  -0.50,-131.56)  328.96                80