Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 6 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)
 06/22/2023   09:18:41   (   0.00,-104.72) (   0.61,-107.52)  318.81                80
 06/23/2023   08:57:38   (   0.00,-104.72) (  -0.40,-103.07)  188.69                80
 06/24/2023   21:20:08   (   0.00,-104.70) (  -0.83,-108.48)  430.34                80
 06/25/2023   21:04:25   (   0.00,-104.71) (   0.18,-104.03)   77.63                80
 06/28/2023   09:08:24   (   0.00,-104.73) (   0.05,-104.96)   25.56                80
 06/29/2023   08:47:22   (   0.00,-104.73) (  -0.96,-100.51)  481.96                80
 06/30/2023   21:09:51   (  -0.00,-104.71) (  -0.25,-105.92)  137.59                80
 07/01/2023   20:54:07   (  -0.00,-104.70) (   0.71,-101.45)  369.94                80
 07/03/2023   09:16:30   (   0.00,-104.72) (   0.47,-106.84)  241.56                80
 07/04/2023   08:55:27   (   0.00,-104.72) (  -0.55,-102.39)  265.48                80
 07/05/2023   21:17:56   (  -0.00,-104.68) (  -0.71,-107.79)  355.05                80