Simultaneous Nadir Overpasses (SNOs) between GOES-16 and TERRA
TLE Epoch: 2021 9 19.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 09/21/2021   03:31:39   (  -0.10, -75.22) (  -0.26, -76.00)   87.97                80
 09/23/2021   03:16:46   (  -0.10, -75.25) (   0.39, -73.04)  250.79                80
 09/23/2021   15:40:40   (   0.11, -75.27) (   0.71, -78.20)  333.08                80
 09/25/2021   15:28:27   (   0.11, -75.30) (   0.12, -75.24)    6.80                80
 09/27/2021   15:13:34   (   0.11, -75.33) (  -0.53, -72.29)  346.15                80
 09/28/2021   03:37:37   (  -0.12, -75.33) (  -0.55, -77.48)  244.69                80
 09/30/2021   03:22:43   (  -0.13, -75.36) (   0.04, -74.52)   95.48                80
 09/30/2021   15:46:38   (   0.13, -75.38) (   1.06, -79.68)  488.41                80
 10/02/2021   03:10:30   (  -0.13, -75.40) (   0.70, -71.57)  436.07                80
 10/02/2021   15:34:25   (   0.14, -75.43) (   0.40, -76.73)  147.66                80