Simultaneous Nadir Overpasses (SNOs) between GOES-16 and TERRA
TLE Epoch: 2021 7 18.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 07/19/2021   03:32:44   (  -0.00, -75.20) (  -0.17, -76.00)   90.72                80
 07/21/2021   03:17:50   (   0.00, -75.22) (   0.45, -73.04)  247.91                80
 07/21/2021   15:41:45   (   0.01, -75.25) (   0.64, -78.19)  334.89                80
 07/23/2021   15:29:31   (   0.01, -75.27) (   0.02, -75.23)    4.81                80
 07/25/2021   15:14:38   (  -0.00, -75.31) (  -0.67, -72.28)  344.23                80
 07/26/2021   03:38:41   (  -0.01, -75.30) (  -0.47, -77.47)  247.15                80
 07/28/2021   03:23:47   (  -0.00, -75.34) (   0.16, -74.51)   94.01                80
 07/28/2021   15:47:42   (   0.02, -75.37) (   0.93, -79.67)  488.32                80
 07/30/2021   03:11:33   (  -0.00, -75.39) (   0.79, -71.55)  436.05                80
 07/30/2021   15:35:28   (   0.02, -75.43) (   0.30, -76.71)  146.07                80