Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 9 17.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 09/17/2023   09:18:30   (   0.01,-104.71) (   0.35,-106.24)  173.84                80
 09/18/2023   08:57:26   (   0.00,-104.71) (  -0.64,-101.77)  334.48                80
 09/19/2023   21:19:54   (  -0.00,-104.68) (  -0.54,-107.19)  285.26                80
 09/20/2023   21:04:10   (  -0.00,-104.68) (   0.46,-102.72)  223.06                80
 09/22/2023   09:26:28   (   0.00,-104.70) (   0.75,-108.09)  385.70                80
 09/23/2023   09:05:23   (   0.00,-104.70) (  -0.24,-103.63)  122.15                80
 09/24/2023   21:27:51   (  -0.01,-104.65) (  -0.97,-109.03)  498.42                80
 09/25/2023   21:12:06   (  -0.01,-104.65) (   0.03,-104.57)    9.97                80
 09/28/2023   09:16:00   (   0.01,-104.68) (   0.18,-105.47)   90.34                80
 09/29/2023   08:54:56   (   0.01,-104.68) (  -0.83,-101.01)  417.90                80
 09/30/2023   21:17:22   (  -0.01,-104.64) (  -0.42,-106.41)  202.07                80