Simultaneous Nadir Overpasses (SNOs) between GOES-16 and TERRA
TLE Epoch: 2021 9 22.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 09/23/2021   03:16:45   (  -0.09, -75.19) (   0.36, -73.04)  244.31                80
 09/23/2021   15:40:40   (   0.10, -75.20) (   0.73, -78.20)  340.23                80
 09/25/2021   15:25:47   (   0.10, -75.21) (   0.08, -75.24)    4.67                80
 09/27/2021   15:13:33   (   0.10, -75.21) (  -0.51, -72.28)  333.07                80
 09/28/2021   03:37:37   (  -0.11, -75.20) (  -0.57, -77.48)  258.68                80
 09/30/2021   03:22:43   (  -0.12, -75.21) (   0.03, -74.52)   78.54                80
 10/02/2021   03:10:29   (  -0.12, -75.22) (   0.63, -71.55)  416.22                80
 10/02/2021   15:34:24   (   0.13, -75.24) (   0.46, -76.71)  168.14                80
 10/04/2021   15:19:31   (   0.13, -75.26) (  -0.20, -73.76)  170.30                80
 10/05/2021   03:43:34   (  -0.13, -75.25) (  -0.93, -78.95)  420.72                80