Simultaneous Nadir Overpasses (SNOs) between GOES-16 and TERRA
TLE Epoch: 2021 6 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)
 06/19/2021   03:18:26   (   0.03, -75.21) (   0.50, -73.06)  243.94                80
 06/19/2021   15:42:21   (  -0.02, -75.22) (   0.60, -78.22)  340.93                80
 06/21/2021   15:30:07   (  -0.02, -75.19) (   0.02, -75.25)    8.65                80
 06/23/2021   15:15:14   (  -0.02, -75.16) (  -0.61, -72.30)  325.02                80
 06/24/2021   03:39:18   (   0.02, -75.13) (  -0.48, -77.49)  268.12                80
 06/26/2021   03:24:25   (   0.02, -75.11) (   0.17, -74.54)   65.26                80
 06/28/2021   03:12:11   (   0.03, -75.09) (   0.75, -71.57)  399.41                80
 06/28/2021   15:36:06   (  -0.02, -75.11) (   0.35, -76.73)  185.11                80
 06/30/2021   15:21:13   (  -0.03, -75.10) (  -0.30, -73.78)  150.44                80
 07/01/2021   03:45:17   (   0.02, -75.09) (  -0.78, -78.97)  441.53                80