Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2023 6 3.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 06/04/2023   00:31:49   (   0.06,-156.56) (   0.13,-156.19)   42.00                80
 06/06/2023   12:33:13   (  -0.08,-157.62) (  -0.16,-157.17)   50.03                80
 06/09/2023   00:37:25   (   0.09,-158.64) (   0.17,-158.19)   50.65                80
 06/10/2023   13:02:30   (  -0.13,-159.28) (   0.86,-163.61)  494.59                80
 06/11/2023   12:41:29   (  -0.10,-159.68) (  -0.19,-159.17)   57.45                80
 06/13/2023   01:04:02   (   0.14,-160.29) (  -0.83,-164.63)  495.04                80
 06/14/2023   00:48:21   (   0.12,-160.69) (   0.23,-160.19)   56.70                80
 06/15/2023   13:10:46   (  -0.16,-161.32) (   0.80,-165.62)  489.56                80
 06/16/2023   12:49:44   (  -0.14,-161.72) (  -0.26,-161.18)   61.50                80