Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2021 4 29.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 04/30/2021   06:49:23   (  -0.03,-127.59) (   0.41,-125.59)  227.00                80
 04/30/2021   19:10:37   (   0.03,-127.65) (   0.69,-130.75)  353.07                80
 05/02/2021   18:58:24   (   0.02,-127.73) (   0.06,-127.79)    8.25                80
 05/04/2021   18:48:51   (   0.02,-127.81) (  -0.58,-124.84)  337.22                80
 05/05/2021   07:10:15   (  -0.02,-127.80) (  -0.52,-130.03)  254.52                80
 05/07/2021   06:55:22   (  -0.02,-127.88) (   0.13,-127.08)   90.53                80
 05/07/2021   19:16:38   (   0.01,-127.93) (   0.91,-132.25)  491.21                80
 05/09/2021   06:43:09   (  -0.02,-127.96) (   0.77,-124.13)  435.38                80
 05/09/2021   19:04:25   (   0.02,-128.00) (   0.26,-129.30)  146.19                80
 05/11/2021   18:54:51   (   0.02,-128.08) (  -0.33,-126.33)  198.33                80
 05/12/2021   07:16:15   (  -0.01,-128.08) (  -0.76,-131.53)  392.04                80