Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2023 6 1.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 06/01/2023   12:24:57   (  -0.04,-155.51) (  -0.11,-155.17)   38.80                80
 06/04/2023   00:31:50   (   0.06,-156.56) (   0.16,-156.20)   41.70                80
 06/06/2023   12:34:38   (  -0.08,-157.61) (  -0.18,-157.18)   49.60                 4
 06/09/2023   00:40:05   (   0.09,-158.63) (   0.19,-158.20)   49.77                80
 06/10/2023   13:02:31   (  -0.13,-159.27) (   0.84,-163.62)  495.44                80
 06/11/2023   12:41:29   (  -0.10,-159.67) (  -0.21,-159.18)   56.47                80
 06/13/2023   01:04:01   (   0.14,-160.28) (  -0.87,-164.62)  496.23                80
 06/14/2023   00:48:21   (   0.12,-160.68) (   0.24,-160.20)   55.39                80