Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2021 5 14.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 05/14/2021   07:04:03   (   0.02,-128.10) (  -0.08,-128.58)   53.95                80
 05/16/2021   06:49:10   (   0.02,-128.15) (   0.57,-125.62)  287.63                80
 05/16/2021   19:10:24   (  -0.02,-128.17) (   0.52,-130.78)  296.32                80
 05/18/2021   19:00:52   (  -0.03,-128.22) (  -0.14,-127.83)   44.88                80
 05/20/2021   18:48:38   (  -0.03,-128.26) (  -0.74,-124.87)  385.72                80
 05/21/2021   07:10:01   (   0.03,-128.27) (  -0.35,-130.06)  204.21                80
 05/23/2021   06:55:07   (   0.03,-128.30) (   0.25,-127.10)  136.11                80
 05/23/2021   19:16:23   (  -0.03,-128.31) (   0.78,-132.27)  449.78                80
 05/25/2021   06:42:54   (   0.02,-128.33) (   0.92,-124.15)  475.77                80
 05/25/2021   19:04:09   (  -0.03,-128.34) (   0.17,-129.31)  110.06                80
 05/27/2021   18:54:35   (  -0.03,-128.36) (  -0.44,-126.34)  228.71                80