Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 5 19.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 05/21/2023   09:06:53   (  -0.00,-104.73) (   0.09,-105.11)   43.77                80
 05/22/2023   08:45:49   (  -0.00,-104.73) (  -0.94,-100.66)  464.03                80
 05/23/2023   21:08:17   (   0.01,-104.72) (  -0.28,-106.07)  153.80                80
 05/24/2023   20:52:33   (   0.01,-104.72) (   0.69,-101.60)  354.38                80
 05/26/2023   09:14:52   (  -0.02,-104.73) (   0.51,-106.98)  256.70                80
 05/27/2023   08:53:49   (  -0.01,-104.73) (  -0.51,-102.52)  251.65                80
 05/28/2023   21:16:16   (   0.00,-104.72) (  -0.74,-107.92)  365.85                80
 05/29/2023   21:00:33   (   0.00,-104.72) (   0.29,-103.47)  142.79                80
 05/31/2023   09:22:52   (  -0.01,-104.74) (   0.92,-108.84)  467.64                80
 06/01/2023   09:01:49   (  -0.01,-104.74) (  -0.11,-104.39)   40.47                80