Simultaneous Nadir Overpasses (SNOs) between GOES-15 and TERRA
TLE Epoch: 2021 6 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)
 06/15/2021   07:03:31   (   0.10,-128.46) (   0.04,-128.59)   15.27                80
 06/17/2021   06:48:39   (   0.10,-128.45) (   0.73,-125.64)  319.11                80
 06/17/2021   19:09:53   (  -0.10,-128.42) (   0.43,-130.79)  269.93                80
 06/19/2021   19:00:20   (  -0.10,-128.40) (  -0.20,-127.83)   63.95                80
 06/21/2021   18:48:07   (  -0.10,-128.37) (  -0.83,-124.88)  397.11                80
 06/22/2021   07:09:31   (   0.10,-128.39) (  -0.26,-130.07)  191.24                80
 06/24/2021   06:54:38   (   0.10,-128.35) (   0.38,-127.12)  140.72                80
 06/24/2021   19:15:53   (  -0.10,-128.31) (   0.72,-132.28)  450.32                80
 06/26/2021   06:42:24   (   0.11,-128.31) (   0.97,-124.15)  472.12                80
 06/26/2021   19:03:39   (  -0.10,-128.27) (   0.14,-129.31)  118.81                80