Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2021 5 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)
 05/04/2021   18:48:52   (   0.01,-127.81) (  -0.60,-124.84)  336.72                80
 05/05/2021   07:10:16   (  -0.01,-127.79) (  -0.49,-130.04)  255.49                80
 05/07/2021   06:55:23   (  -0.01,-127.87) (   0.15,-127.08)   89.12                80
 05/07/2021   19:16:37   (   0.00,-127.92) (   0.95,-132.24)  492.26                80
 05/09/2021   06:43:10   (  -0.01,-127.94) (   0.79,-124.13)  433.60                80
 05/09/2021   19:04:25   (   0.01,-127.99) (   0.30,-129.29)  147.63                80
 05/11/2021   18:54:52   (   0.01,-128.06) (  -0.34,-126.33)  196.45                80
 05/12/2021   07:16:15   (  -0.00,-128.06) (  -0.74,-131.53)  394.49                80
 05/14/2021   07:04:02   (  -0.01,-128.12) (  -0.09,-128.58)   51.50                80
 05/16/2021   06:49:10   (  -0.01,-128.18) (   0.56,-125.62)  290.77                80
 05/16/2021   19:10:24   (   0.00,-128.20) (   0.54,-130.78)  292.64                80