Simultaneous Nadir Overpasses (SNOs) between GOES-16 and TERRA
TLE Epoch: 2021 9 17.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 09/18/2021   15:19:48   (   0.10, -75.21) (  -0.20, -73.75)  165.85                80
 09/19/2021   03:43:52   (  -0.11, -75.21) (  -0.89, -78.95)  425.38                80
 09/21/2021   03:31:39   (  -0.11, -75.23) (  -0.25, -76.00)   87.16                80
 09/23/2021   03:16:45   (  -0.11, -75.25) (   0.34, -73.03)  251.88                80
 09/23/2021   15:40:40   (   0.11, -75.27) (   0.76, -78.19)  332.29                80
 09/25/2021   15:28:27   (   0.12, -75.31) (   0.11, -75.24)    7.46                80
 09/27/2021   15:13:34   (   0.12, -75.34) (  -0.54, -72.29)  347.45                80
 09/28/2021   03:37:36   (  -0.13, -75.34) (  -0.60, -77.47)  242.91                80
 09/30/2021   03:22:44   (  -0.13, -75.38) (   0.05, -74.52)   97.51                80
 09/30/2021   15:46:38   (   0.14, -75.40) (   1.05, -79.68)  486.68                80