Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 5 20.  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   09:06:52   (  -0.00,-104.73) (   0.11,-105.11)   43.80                80
 05/22/2023   08:45:49   (  -0.00,-104.73) (  -0.92,-100.66)  464.07                80
 05/23/2023   21:08:17   (   0.01,-104.72) (  -0.30,-106.06)  153.73                80
 05/24/2023   20:52:34   (   0.01,-104.72) (   0.73,-101.61)  354.44                80
 05/26/2023   09:14:53   (  -0.02,-104.73) (   0.47,-106.99)  256.61                80
 05/27/2023   08:53:48   (  -0.01,-104.73) (  -0.50,-102.52)  251.77                80
 05/28/2023   21:16:17   (   0.00,-104.72) (  -0.69,-107.93)  365.72                80
 05/29/2023   21:00:32   (   0.00,-104.72) (   0.28,-103.47)  142.95                80
 05/31/2023   09:22:52   (  -0.01,-104.74) (   0.92,-108.84)  467.45                80
 06/01/2023   09:01:48   (  -0.01,-104.74) (  -0.11,-104.39)   40.70                80