Simultaneous Nadir Overpasses (SNOs) between GOES-16 and TERRA
TLE Epoch: 2021 4 20.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 04/20/2021   15:18:55   (   0.05, -75.19) (  -0.56, -72.30)  328.03                80
 04/21/2021   03:40:19   (  -0.04, -75.17) (  -0.53, -77.49)  263.89                80
 04/23/2021   03:25:26   (  -0.04, -75.17) (   0.08, -74.54)   71.78                80
 04/25/2021   03:13:13   (  -0.04, -75.17) (   0.70, -71.58)  408.11                80
 04/25/2021   15:34:29   (   0.04, -75.18) (   0.35, -76.75)  177.11                80
 04/27/2021   15:24:56   (   0.04, -75.19) (  -0.28, -73.79)  159.80                80
 04/28/2021   03:46:20   (  -0.04, -75.19) (  -0.82, -78.98)  431.32                80
 04/29/2021   15:12:43   (   0.04, -75.20) (  -0.90, -70.83)  496.75                80
 04/30/2021   03:34:07   (  -0.03, -75.19) (  -0.19, -76.03)   94.38                80
 05/02/2021   03:19:14   (  -0.03, -75.20) (   0.44, -73.07)  242.93                80
 05/02/2021   15:40:29   (   0.02, -75.22) (   0.66, -78.23)  342.40                80