Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2023 9 11.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 09/12/2023   07:26:05   (   0.04, -75.20) (   0.87, -78.80)  410.39                80
 09/13/2023   07:10:22   (   0.04, -75.20) (  -0.17, -74.35)   97.67                80
 09/15/2023   19:11:45   (  -0.03, -75.21) (  -0.04, -75.29)    9.46                80
 09/16/2023   18:56:01   (  -0.03, -75.21) (   0.95, -70.83)  499.44                80
 09/18/2023   07:15:39   (   0.03, -75.21) (   0.27, -76.19)  112.57                80
 09/19/2023   06:57:16   (   0.03, -75.21) (  -0.78, -71.74)  396.35                80
 09/20/2023   19:19:43   (  -0.03, -75.22) (  -0.45, -77.14)  218.54                80
 09/21/2023   19:03:59   (  -0.03, -75.23) (   0.54, -72.68)  290.40                80
 09/23/2023   07:26:17   (   0.02, -75.23) (   0.67, -78.05)  321.53                80
 09/24/2023   07:05:13   (   0.02, -75.23) (  -0.38, -73.60)  187.39                80