Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2023 10 21.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 10/21/2023   07:10:32   (   0.03, -75.21) (  -0.28, -73.81)  159.38                80
 10/22/2023   19:30:17   (  -0.02, -75.22) (  -0.92, -79.21)  454.95                80
 10/23/2023   19:14:32   (  -0.02, -75.22) (   0.09, -74.74)   54.80                80
 10/26/2023   07:18:24   (   0.01, -75.24) (   0.09, -75.64)   44.89                80
 10/27/2023   06:59:58   (   0.02, -75.26) (  -0.92, -71.18)  465.62                80
 10/28/2023   19:19:43   (  -0.01, -75.27) (  -0.30, -76.56)  146.77                80
 10/29/2023   19:03:57   (  -0.02, -75.29) (   0.72, -72.10)  364.11                80
 10/31/2023   07:26:13   (   0.01, -75.31) (   0.53, -77.45)  244.44                80
 11/01/2023   07:05:08   (   0.02, -75.33) (  -0.50, -72.99)  266.57                80
 11/02/2023   19:27:32   (  -0.01, -75.35) (  -0.71, -78.38)  345.22                80
 11/03/2023   19:11:47   (  -0.01, -75.37) (   0.33, -73.92)  166.23                80