Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2021 11 14.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 11/14/2021   06:52:33   (   0.02, -75.20) (   0.44, -77.10)  216.38                80
 11/15/2021   06:30:54   (   0.02, -75.20) (  -0.59, -72.50)  307.83                80
 11/16/2021   18:52:30   (  -0.02, -75.22) (  -0.58, -77.71)  283.67                80
 11/17/2021   18:36:11   (  -0.02, -75.23) (   0.46, -73.11)  241.06                80
 11/19/2021   06:57:36   (   0.03, -75.24) (   0.74, -78.27)  346.07                80
 11/20/2021   06:35:59   (   0.03, -75.25) (  -0.35, -73.69)  178.66                80
 11/21/2021   19:00:13   (  -0.03, -75.27) (  -0.86, -78.89)  412.43                80
 11/22/2021   18:38:35   (  -0.03, -75.28) (   0.18, -74.29)  112.60                80
 11/24/2021   07:02:41   (   0.04, -75.31) (   0.97, -79.46)  473.73                80
 11/25/2021   06:41:03   (   0.03, -75.32) (  -0.07, -74.87)   51.35                80
 11/27/2021   18:46:18   (  -0.04, -75.36) (  -0.09, -75.47)   13.56                80