Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2021 5 18.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 05/20/2021   18:48:38   (  -0.04,-128.27) (  -0.78,-124.87)  386.56                80
 05/21/2021   07:10:02   (   0.04,-128.27) (  -0.31,-130.07)  203.64                80
 05/23/2021   06:55:08   (   0.04,-128.31) (   0.30,-127.11)  136.98                80
 05/23/2021   19:16:23   (  -0.04,-128.32) (   0.79,-132.26)  448.41                80
 05/25/2021   06:42:54   (   0.03,-128.34) (   0.91,-124.14)  476.99                80
 05/25/2021   19:04:09   (  -0.04,-128.35) (   0.18,-129.30)  108.40                80
 05/27/2021   18:54:36   (  -0.04,-128.38) (  -0.50,-126.35)  230.68                80
 05/28/2021   07:15:59   (   0.05,-128.39) (  -0.65,-131.54)  358.54                80
 05/30/2021   07:03:46   (   0.05,-128.41) (   0.03,-128.59)   20.37                80
 06/01/2021   06:48:52   (   0.06,-128.42) (   0.65,-125.63)  317.88                80
 06/01/2021   19:10:07   (  -0.06,-128.41) (   0.43,-130.78)  269.40                80