Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 4 22.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 04/24/2023   09:00:52   (  -0.00,-104.74) (   0.00,-104.67)    7.19                80
 04/26/2023   21:04:59   (   0.00,-104.73) (  -0.18,-105.64)  102.79                80
 04/27/2023   20:49:16   (  -0.00,-104.74) (   0.81,-101.18)  405.38                80
 04/29/2023   09:11:35   (  -0.00,-104.75) (   0.42,-106.55)  206.19                80
 04/30/2023   08:50:32   (  -0.00,-104.75) (  -0.58,-102.10)  301.91                80
 05/01/2023   21:13:01   (   0.00,-104.75) (  -0.63,-107.51)  315.53                80
 05/02/2023   20:57:18   (   0.00,-104.75) (   0.37,-103.06)  192.94                80
 05/04/2023   09:19:37   (   0.00,-104.77) (   0.85,-108.43)  417.88                80
 05/05/2023   08:58:33   (  -0.00,-104.77) (  -0.16,-103.97)   90.21                80