Simultaneous Nadir Overpasses (SNOs) between GOES-16 and TERRA
TLE Epoch: 2021 9 11.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 09/11/2021   15:13:49   (   0.09, -75.20) (  -0.51, -72.27)  332.37                80
 09/12/2021   03:37:52   (  -0.10, -75.18) (  -0.59, -77.46)  259.41                80
 09/14/2021   03:22:59   (  -0.10, -75.16) (   0.05, -74.51)   74.34                80
 09/16/2021   03:10:47   (  -0.11, -75.14) (   0.68, -71.56)  408.50                80
 09/16/2021   15:34:40   (   0.12, -75.15) (   0.47, -76.70)  177.33                80
 09/18/2021   15:19:47   (   0.12, -75.14) (  -0.17, -73.75)  157.89                80
 09/19/2021   03:43:51   (  -0.12, -75.13) (  -0.92, -78.94)  433.08                80
 09/20/2021   15:07:34   (   0.11, -75.14) (  -0.81, -70.80)  494.04                80
 09/21/2021   03:31:38   (  -0.12, -75.13) (  -0.27, -75.99)   96.76                80
 09/23/2021   03:16:44   (  -0.12, -75.14) (   0.32, -73.03)  240.45                80
 09/23/2021   15:40:39   (   0.13, -75.15) (   0.78, -78.18)  344.86                80