Simultaneous Nadir Overpasses (SNOs) between GOES-16 and TERRA
TLE Epoch: 2021 9 15.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 09/16/2021   03:10:46   (  -0.10, -75.19) (   0.66, -71.55)  413.75                80
 09/16/2021   15:34:41   (   0.11, -75.21) (   0.44, -76.71)  171.05                80
 09/18/2021   15:19:48   (   0.11, -75.22) (  -0.20, -73.76)  166.27                80
 09/19/2021   03:43:52   (  -0.12, -75.21) (  -0.89, -78.95)  424.63                80
 09/21/2021   03:31:38   (  -0.12, -75.23) (  -0.30, -75.99)   86.21                80
 09/23/2021   03:16:45   (  -0.11, -75.26) (   0.34, -73.03)  253.09                80
 09/23/2021   15:40:40   (   0.12, -75.28) (   0.75, -78.19)  331.25                80
 09/25/2021   15:25:47   (   0.12, -75.32) (   0.11, -75.24)    8.68                80
 09/27/2021   15:13:34   (   0.13, -75.35) (  -0.55, -72.29)  348.96                80
 09/28/2021   03:37:37   (  -0.14, -75.35) (  -0.60, -77.47)  241.06                80