Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2023 6 5.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 06/06/2023   12:35:54   (  -0.08,-157.62) (  -0.19,-157.18)   50.18                80
 06/09/2023   00:40:05   (   0.09,-158.64) (   0.20,-158.20)   51.24                80
 06/10/2023   13:02:30   (  -0.13,-159.28) (   0.88,-163.61)  494.01                80
 06/11/2023   12:43:24   (  -0.10,-159.69) (  -0.22,-159.18)   58.09                35
 06/13/2023   01:04:02   (   0.14,-160.30) (  -0.86,-164.63)  494.01                80
 06/14/2023   00:48:21   (   0.12,-160.70) (   0.26,-160.20)   57.86                80
 06/15/2023   13:10:45   (  -0.16,-161.33) (   0.83,-165.61)  488.48                80
 06/16/2023   12:52:25   (  -0.14,-161.73) (  -0.28,-161.18)   62.70                80
 06/18/2023   01:12:17   (   0.18,-162.32) (  -0.78,-166.63)  491.03                80
 06/19/2023   00:56:36   (   0.16,-162.72) (   0.28,-162.19)   59.85                80