Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2023 1 27.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 01/27/2023   10:39:57   (   0.03,-128.26) (   0.54,-130.49)  254.15                80
 01/28/2023   10:24:17   (   0.03,-128.27) (  -0.44,-126.05)  253.31                80
 01/29/2023   22:46:50   (  -0.03,-128.25) (  -0.78,-131.48)  368.13                80
 01/30/2023   22:25:51   (  -0.04,-128.26) (   0.26,-127.05)  138.75                80
 02/01/2023   10:48:15   (   0.04,-128.29) (   0.99,-132.43)  472.85                80
 02/02/2023   10:32:34   (   0.04,-128.29) (   0.00,-127.99)   34.14                80
 02/04/2023   22:36:47   (  -0.05,-128.27) (  -0.21,-128.98)   81.21                80
 02/05/2023   22:15:47   (  -0.05,-128.27) (   0.79,-124.54)  425.08                80
 02/07/2023   10:38:12   (   0.05,-128.29) (   0.40,-129.94)  187.59                80
 02/08/2023   10:22:32   (   0.05,-128.29) (  -0.60,-125.50)  318.92                80
 02/09/2023   22:45:04   (  -0.04,-128.27) (  -0.63,-130.92)  302.78                80