Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 5 18.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 05/18/2023   21:02:57   (  -0.00,-104.72) (   0.09,-104.19)   59.79                80
 05/21/2023   09:06:53   (  -0.00,-104.73) (   0.09,-105.11)   43.37                80
 05/22/2023   08:45:49   (  -0.01,-104.73) (  -0.93,-100.66)  464.53                80
 05/23/2023   21:08:17   (   0.02,-104.72) (  -0.28,-106.07)  153.10                80
 05/24/2023   20:52:34   (   0.02,-104.73) (   0.75,-101.62)  355.30                80
 05/26/2023   09:14:53   (  -0.02,-104.74) (   0.46,-106.99)  255.43                80
 05/27/2023   08:53:49   (  -0.02,-104.74) (  -0.51,-102.52)  252.92                80
 05/28/2023   21:16:17   (   0.03,-104.74) (  -0.68,-107.94)  364.57                80
 05/29/2023   21:00:33   (   0.03,-104.74) (   0.29,-103.47)  144.21                80
 05/31/2023   09:22:52   (  -0.03,-104.76) (   0.92,-108.84)  465.78                80