Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2023 5 9.  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   07:09:06   (  -0.01, -75.19) (   0.14, -75.80)   70.77                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)  178.94                80
 05/14/2023   18:54:47   (   0.01, -75.20) (   0.63, -72.30)  329.88                80
 05/16/2023   07:17:06   (  -0.01, -75.21) (   0.58, -77.67)  280.93                80
 05/17/2023   06:56:03   (  -0.01, -75.22) (  -0.43, -73.21)  228.17                80
 05/18/2023   19:18:32   (   0.01, -75.24) (  -0.74, -78.63)  386.96                80
 05/19/2023   19:02:49   (   0.01, -75.25) (   0.28, -74.18)  122.53                80
 05/21/2023   07:25:08   (  -0.00, -75.27) (   0.93, -79.55)  487.35                80
 05/22/2023   07:04:03   (  -0.00, -75.29) (  -0.02, -75.09)   22.42                80