Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 6 21.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 06/22/2023   09:18:41   (   0.00,-104.75) (   0.60,-107.53)  316.32                80
 06/23/2023   08:57:38   (   0.00,-104.76) (  -0.40,-103.07)  192.45                80
 06/24/2023   21:20:08   (   0.00,-104.75) (  -0.82,-108.49)  425.04                80
 06/25/2023   21:04:25   (   0.00,-104.77) (   0.19,-104.03)   84.15                80
 06/28/2023   09:08:24   (  -0.00,-104.83) (   0.05,-104.96)   15.54                80
 06/29/2023   08:47:22   (  -0.00,-104.84) (  -0.97,-100.51)  493.39                80
 06/30/2023   21:09:51   (   0.00,-104.83) (  -0.25,-105.92)  124.58                80
 07/01/2023   20:54:08   (  -0.00,-104.84) (   0.77,-101.47)  384.15                80
 07/03/2023   09:16:30   (  -0.00,-104.88) (   0.47,-106.85)  225.07                80
 07/04/2023   08:55:27   (  -0.00,-104.88) (  -0.55,-102.40)  283.22                80