Simultaneous Nadir Overpasses (SNOs) between GOES-16 and TERRA
TLE Epoch: 2021 9 13.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 09/14/2021   03:22:59   (  -0.10, -75.19) (   0.02, -74.50)   77.75                80
 09/16/2021   03:10:46   (  -0.11, -75.19) (   0.66, -71.55)  414.10                80
 09/16/2021   15:34:41   (   0.12, -75.21) (   0.44, -76.71)  170.73                80
 09/18/2021   15:19:48   (   0.12, -75.22) (  -0.20, -73.76)  166.69                80
 09/19/2021   03:43:52   (  -0.12, -75.22) (  -0.89, -78.95)  424.10                80
 09/21/2021   03:31:38   (  -0.12, -75.24) (  -0.30, -75.99)   85.53                80
 09/23/2021   03:16:45   (  -0.12, -75.27) (   0.35, -73.03)  253.85                80
 09/23/2021   15:40:40   (   0.13, -75.29) (   0.75, -78.19)  330.50                80
 09/25/2021   15:25:47   (   0.13, -75.32) (   0.10, -75.24)    9.64                80