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

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 01/16/2023   10:41:39   (   0.00,-128.13) (   0.69,-131.03)  330.76                80
 01/17/2023   10:25:59   (   0.01,-128.15) (  -0.33,-126.59)  177.21                80
 01/18/2023   22:48:33   (  -0.01,-128.12) (  -0.89,-132.03)  445.30                80
 01/19/2023   22:27:34   (  -0.01,-128.13) (   0.13,-127.59)   61.83                80
 01/22/2023   10:31:40   (   0.01,-128.19) (   0.07,-128.55)   40.93                80
 01/23/2023   10:15:59   (   0.00,-128.20) (  -0.90,-124.11)  466.13                80
 01/24/2023   22:38:34   (   0.00,-128.17) (  -0.30,-129.55)  156.80                80
 01/25/2023   22:17:33   (   0.00,-128.17) (   0.67,-125.10)  350.02                80
 01/27/2023   10:39:59   (  -0.00,-128.22) (   0.49,-130.51)  260.22                80
 01/28/2023   10:24:19   (  -0.00,-128.23) (  -0.48,-126.06)  246.77                80