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

     Date     Time(GOES-16)   GOES-16 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 04/16/2021   15:40:41   (   0.06, -75.20) (   0.68, -78.21)  341.86                80
 04/18/2021   15:28:28   (   0.05, -75.20) (   0.07, -75.25)    6.94                80
 04/20/2021   15:18:56   (   0.05, -75.19) (  -0.59, -72.31)  328.46                80
 04/21/2021   03:40:19   (  -0.04, -75.18) (  -0.56, -77.49)  263.16                80
 04/23/2021   03:25:27   (  -0.04, -75.18) (   0.11, -74.54)   72.93                80
 04/25/2021   03:13:14   (  -0.04, -75.19) (   0.72, -71.58)  409.66                80
 04/25/2021   15:34:28   (   0.04, -75.20) (   0.38, -76.74)  175.68                80
 04/27/2021   15:24:55   (   0.04, -75.21) (  -0.23, -73.78)  161.64                80
 04/28/2021   03:46:19   (  -0.04, -75.21) (  -0.86, -78.98)  429.15                80
 04/29/2021   15:12:44   (   0.03, -75.22) (  -0.92, -70.84)  498.96                80
 04/30/2021   03:34:07   (  -0.03, -75.22) (  -0.17, -76.03)   91.85                80