Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2021 3 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)
 03/08/2021   18:55:39   (   0.16,-128.40) (  -0.31,-126.31)  238.03                80
 03/09/2021   07:17:02   (  -0.16,-128.32) (  -0.85,-131.49)  361.04                80
 03/11/2021   07:04:50   (  -0.16,-128.34) (  -0.18,-128.54)   22.73                80
 03/13/2021   06:49:57   (  -0.16,-128.36) (   0.43,-125.58)  315.75                80
 03/13/2021   19:11:13   (   0.16,-128.45) (   0.62,-130.75)  260.97                80
 03/15/2021   19:01:40   (   0.16,-128.46) (   0.01,-127.79)   77.32                80
 03/17/2021   18:49:27   (   0.15,-128.48) (  -0.61,-124.83)  415.09                80
 03/18/2021   07:10:51   (  -0.15,-128.40) (  -0.48,-130.02)  183.78                80
 03/20/2021   06:55:58   (  -0.15,-128.41) (   0.14,-127.06)  153.01                80
 03/20/2021   19:17:13   (   0.15,-128.49) (   0.97,-132.22)  424.96                80