Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2022 4 8.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 04/09/2022   10:30:07   (   0.12,-128.40) (   0.54,-130.37)  223.53                80
 04/10/2022   10:09:03   (   0.12,-128.40) (  -0.46,-125.91)  283.70                80
 04/11/2022   22:31:31   (  -0.12,-128.40) (  -0.81,-131.32)  334.04                80
 04/12/2022   22:15:48   (  -0.12,-128.40) (   0.20,-126.87)  173.23                80
 04/14/2022   10:38:07   (   0.12,-128.38) (   1.00,-132.26)  441.93                80
 04/15/2022   10:17:04   (   0.12,-128.37) (  -0.01,-127.81)   64.85                80
 04/17/2022   22:21:09   (  -0.12,-128.35) (  -0.24,-128.77)   47.64                80
 04/18/2022   22:05:25   (  -0.12,-128.34) (   0.78,-124.32)  458.74                80
 04/20/2022   10:25:05   (   0.12,-128.31) (   0.42,-129.70)  158.02                80
 04/21/2022   10:09:20   (   0.12,-128.29) (  -0.54,-125.24)  347.63                80