Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2021 5 3.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 05/04/2021   18:48:52   (   0.02,-127.81) (  -0.63,-124.85)  336.85                80
 05/05/2021   07:10:16   (  -0.01,-127.79) (  -0.47,-130.04)  255.31                80
 05/07/2021   06:55:23   (  -0.01,-127.87) (   0.17,-127.09)   89.46                80
 05/07/2021   19:16:38   (   0.00,-127.92) (   0.92,-132.25)  491.93                80
 05/09/2021   06:43:10   (  -0.02,-127.95) (   0.82,-124.14)  434.07                80
 05/09/2021   19:04:25   (   0.01,-128.00) (   0.28,-129.29)  147.15                80
 05/11/2021   18:54:52   (   0.01,-128.07) (  -0.37,-126.34)  197.06                80
 05/12/2021   07:16:16   (  -0.01,-128.07) (  -0.72,-131.53)  393.82                80
 05/14/2021   07:04:02   (  -0.01,-128.13) (  -0.12,-128.57)   50.71                80
 05/16/2021   06:49:09   (  -0.01,-128.18) (   0.53,-125.62)  291.74                80
 05/16/2021   19:10:24   (   0.00,-128.21) (   0.56,-130.77)  291.67                80