Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2022 5 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)
 05/29/2022   10:10:02   (   0.03,-127.95) (  -0.63,-125.08)  327.26                80
 05/30/2022   22:29:49   (  -0.01,-127.99) (  -0.55,-130.50)  285.64                80
 05/31/2022   22:14:05   (  -0.02,-128.02) (   0.45,-126.04)  225.90                80
 06/02/2022   10:33:44   (  -0.01,-128.07) (   0.76,-131.42)  382.62                80
 06/03/2022   10:18:00   (   0.00,-128.09) (  -0.24,-126.97)  128.46                80
 06/04/2022   22:37:47   (   0.02,-128.12) (  -0.92,-132.39)  485.59                80
 06/05/2022   22:22:03   (   0.01,-128.15) (   0.08,-127.93)   25.68                80
 06/08/2022   10:23:17   (  -0.02,-128.22) (   0.12,-128.86)   72.29                80
 06/09/2022   10:07:33   (  -0.00,-128.24) (  -0.89,-124.40)  438.35                80
 06/10/2022   22:27:19   (   0.04,-128.26) (  -0.32,-129.81)  176.83                80
 06/11/2022   22:11:35   (   0.03,-128.28) (   0.69,-125.36)  333.51                80