Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2023 1 13.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 01/13/2023   22:40:13   (  -0.00,-128.04) (  -0.47,-130.07)  231.73                80
 01/14/2023   22:19:14   (  -0.00,-128.05) (   0.55,-125.63)  276.37                80
 01/16/2023   10:41:39   (   0.00,-128.13) (   0.67,-131.03)  331.18                80
 01/17/2023   10:26:00   (   0.01,-128.14) (  -0.34,-126.59)  176.68                80
 01/18/2023   22:48:34   (  -0.01,-128.11) (  -0.88,-132.03)  446.14                80
 01/19/2023   22:27:33   (  -0.01,-128.12) (   0.08,-127.58)   60.95                80
 01/22/2023   10:31:40   (   0.01,-128.18) (   0.06,-128.56)   42.06                80
 01/23/2023   10:16:00   (   0.00,-128.19) (  -0.90,-124.11)  464.96                80
 01/24/2023   22:38:34   (   0.00,-128.16) (  -0.29,-129.55)  158.30                80
 01/25/2023   22:17:34   (   0.00,-128.16) (   0.68,-125.10)  348.42                80