Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2021 5 11.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 05/11/2021   18:54:52   (  -0.01,-128.05) (  -0.36,-126.34)  194.50                80
 05/12/2021   07:16:16   (   0.01,-128.05) (  -0.73,-131.53)  396.27                80
 05/14/2021   07:04:03   (   0.01,-128.10) (  -0.08,-128.58)   53.91                80
 05/16/2021   06:49:10   (   0.01,-128.15) (   0.57,-125.63)  287.74                80
 05/16/2021   19:10:25   (  -0.02,-128.17) (   0.52,-130.78)  296.14                80
 05/18/2021   19:00:51   (  -0.02,-128.22) (  -0.08,-127.82)   45.09                80
 05/20/2021   18:48:38   (  -0.02,-128.26) (  -0.74,-124.87)  385.92                80
 05/21/2021   07:10:01   (   0.03,-128.27) (  -0.35,-130.06)  204.08                80
 05/23/2021   06:55:08   (   0.02,-128.30) (   0.26,-127.10)  136.22                80
 05/23/2021   19:16:22   (  -0.03,-128.31) (   0.83,-132.26)  449.57                80