Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 5 15.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 05/15/2023   09:17:16   (  -0.00,-104.73) (   0.69,-107.70)  339.91                80
 05/16/2023   08:56:12   (   0.00,-104.73) (  -0.33,-103.25)  168.37                80
 05/17/2023   21:18:41   (  -0.00,-104.72) (  -0.90,-108.66)  448.75                80
 05/18/2023   21:02:57   (  -0.00,-104.73) (   0.12,-104.20)   59.83                80
 05/21/2023   09:06:52   (   0.00,-104.74) (   0.11,-105.11)   42.93                80
 05/22/2023   08:45:49   (  -0.00,-104.74) (  -0.91,-100.66)  465.25                80
 05/23/2023   21:08:17   (   0.01,-104.73) (  -0.29,-106.07)  152.25                80
 05/24/2023   20:52:33   (   0.01,-104.74) (   0.74,-101.62)  356.25                80
 05/26/2023   09:14:53   (  -0.02,-104.75) (   0.46,-106.99)  254.19                80
 05/27/2023   08:53:48   (  -0.02,-104.76) (  -0.52,-102.53)  254.27                80
 05/28/2023   21:16:16   (   0.02,-104.75) (  -0.72,-107.93)  363.11                80