Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2023 1 29.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 01/29/2023   22:46:50   (  -0.03,-128.25) (  -0.76,-131.48)  368.04                80
 01/30/2023   22:25:50   (  -0.04,-128.26) (   0.23,-127.04)  138.74                80
 02/01/2023   10:48:15   (   0.04,-128.29) (   0.96,-132.44)  472.81                80
 02/02/2023   10:32:35   (   0.05,-128.29) (  -0.03,-128.00)   33.99                80
 02/04/2023   22:36:47   (  -0.05,-128.26) (  -0.23,-128.97)   81.46                80
 02/05/2023   22:15:46   (  -0.05,-128.26) (   0.77,-124.53)  424.82                80
 02/07/2023   10:38:11   (   0.05,-128.29) (   0.42,-129.93)  187.79                80
 02/08/2023   10:22:31   (   0.05,-128.29) (  -0.58,-125.49)  318.64                80
 02/09/2023   22:45:03   (  -0.05,-128.26) (  -0.65,-130.92)  303.24                80
 02/10/2023   22:24:03   (  -0.05,-128.25) (   0.36,-126.48)  202.65                80