Simultaneous Nadir Overpasses (SNOs) between GOES-16 and TERRA
TLE Epoch: 2021 12 9.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 12/10/2021   03:29:57   (   0.03, -75.18) (  -0.12, -76.03)   96.83                80
 12/12/2021   03:15:03   (   0.03, -75.19) (   0.49, -73.07)  241.26                80
 12/12/2021   15:38:57   (  -0.03, -75.21) (   0.59, -78.23)  343.03                80
 12/14/2021   15:25:34   (  -0.03, -75.23) (  -0.02, -75.27)    4.13                12
 12/16/2021   15:11:47   (  -0.03, -75.26) (  -0.64, -72.31)  335.24                80
 12/17/2021   03:35:51   (   0.02, -75.25) (  -0.42, -77.51)  255.69                80
 12/19/2021   03:20:56   (   0.02, -75.28) (   0.20, -74.54)   84.09                80
 12/21/2021   03:08:41   (   0.02, -75.31) (   0.82, -71.58)  424.28                80
 12/21/2021   15:29:56   (  -0.02, -75.33) (   0.25, -76.74)  159.77                80
 12/23/2021   15:20:21   (  -0.01, -75.37) (  -0.38, -73.78)  181.23                80