Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2023 1 25.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 01/25/2023   22:17:32   (  -0.02,-128.21) (   0.69,-125.10)  355.80                80
 01/27/2023   10:39:58   (   0.02,-128.26) (   0.51,-130.50)  254.26                80
 01/28/2023   10:24:17   (   0.02,-128.27) (  -0.47,-126.05)  253.29                80
 01/29/2023   22:46:50   (  -0.02,-128.26) (  -0.75,-131.48)  367.85                80
 01/30/2023   22:25:50   (  -0.03,-128.26) (   0.24,-127.04)  139.07                80
 02/01/2023   10:48:15   (   0.03,-128.30) (   0.95,-132.44)  472.56                80
 02/02/2023   10:32:35   (   0.03,-128.30) (  -0.04,-128.00)   34.38                80
 02/04/2023   22:36:47   (  -0.03,-128.28) (  -0.22,-128.98)   80.50                80
 02/05/2023   22:15:46   (  -0.03,-128.28) (   0.79,-124.54)  425.94                80
 02/07/2023   10:38:11   (   0.03,-128.30) (   0.40,-129.94)  186.76                80