Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2023 5 10.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 05/11/2023   07:09:05   (  -0.02, -75.19) (   0.14, -75.80)   70.82                80
 05/12/2023   06:48:02   (  -0.01, -75.19) (  -0.87, -71.35)  437.31                80
 05/13/2023   19:10:31   (   0.01, -75.19) (  -0.32, -76.77)  178.72                80
 05/14/2023   18:54:47   (   0.01, -75.20) (   0.64, -72.30)  330.16                80
 05/16/2023   07:17:06   (  -0.01, -75.21) (   0.57, -77.67)  280.71                80
 05/17/2023   06:56:03   (  -0.01, -75.22) (  -0.44, -73.21)  228.43                80
 05/18/2023   19:18:32   (   0.01, -75.24) (  -0.73, -78.63)  386.49                80
 05/19/2023   19:02:47   (   0.01, -75.25) (   0.23, -74.17)  123.04                80
 05/21/2023   07:25:07   (  -0.01, -75.28) (   0.98, -79.54)  486.87                80
 05/22/2023   07:04:03   (  -0.01, -75.29) (  -0.04, -75.09)   22.83                80