Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2023 1 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)
 01/22/2023   07:11:08   (  -0.04, -75.19) (   0.54, -77.68)  284.50                80
 01/23/2023   06:50:08   (  -0.04, -75.20) (  -0.49, -73.25)  222.31                80
 01/24/2023   19:12:42   (   0.04, -75.21) (  -0.76, -78.68)  395.21                80
 01/25/2023   18:57:02   (   0.04, -75.22) (   0.28, -74.24)  112.38                80
 01/28/2023   06:58:27   (  -0.04, -75.25) (  -0.07, -75.20)    6.80                80
 01/30/2023   19:02:40   (   0.03, -75.30) (  -0.17, -76.19)  101.15                80
 01/31/2023   18:46:59   (   0.03, -75.32) (   0.83, -71.74)  407.33                80
 02/02/2023   07:09:24   (   0.00, -75.34) (   0.43, -77.13)  204.65                80
 02/03/2023   06:48:23   (   0.02, -75.36) (  -0.57, -72.69)  304.35                80